Gennaro SCARSELLI

Gennaro SCARSELLI

Professore II Fascia (Associato)

Settore Scientifico Disciplinare ING-IND/04: COSTRUZIONI E STRUTTURE AEROSPAZIALI.

Dipartimento di Ingegneria dell'Innovazione

Centro Ecotekne Pal. O - S.P. 6, Lecce - Monteroni - LECCE (LE)

Ufficio, Piano terra

Recapiti aggiuntivi

Cittadella della Ricerca - Edificio 14 Piano Terra

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Curriculum Vitae

Currently he is Associate Professor at University of Salento, Department of Engineering for Innovation, and Vice-Chancellor for the International Affairs. He got the Degree in Aeronautical Engineering (specialized in aerospace structures) at University of Naples “Federico II” on 16th December 1996 with full honours; he has achieved the Ph.D. in Aerospace Engineering at University of Naples “Federico II” discussing a thesis on the following topic: “Mistuning effects on the dynamic behaviour of bladed discs employed in turbomachinery”, Tutor: Prof. L. Lecce. He performed research activities at University of Naples since 1997 to 2008 within different Research Programmes, Contracts with Private and Public bodies. He has been active researcher in the following Programmes funded by European Union in which the Department of Aerospace Engineering of University of Naples “Federico II” has been Partner: MADAVIC: employment of magnetostrictive materials for the design of innovative actuators; ADTurB II: structural problems concerning the turbomachinery; CAPECON: employment of UAV for civil purposes; SEFA: airport noise and exposure of communities to aircraft noise; HISAC: design of small supersonic business jet; COSMA: aircraft noise and mitigation of the exposure of communities to sound pressure levels due to airport operations. Since December 2008 he is working at University of Salento. He is currently active in the following research fields: structural dynamics; acoustics (interior and external) and vibration; definition of innovative solutions for the reduction of noise and vibration propagating through panels employed in aerospace field; advanced structural analysis through optimization codes integrated into structural computation codes; corrosion of aeronautical structures; numerical and experimental vibrational analysis of light structures for NDT. He is author of about 90 scientific publications issued on Journals and Conference Proceedings (64 of these Scopus indexed).He has achieved the following teaching activities (since 1998 to now): 

(at University  of Salento):

academic years since 2008/2009 to now:

in charge of the Course of Aerospace Structures (9 CFU, 1 CFU = 9 hours of lesson in classroom) for students of 1st year of the second level Degree in Aerospace Engineering;

academic year 2008/2009:

in charge of the Course of Aeronautical Certification (3 CFU) for students of 2nd year of the second level Degree in Aerospace Engineering;

academic years 2009/2010, 2010/2011:

in charge of the Course of Aerospace Structures Laboratory (3 CFU) for students of 2nd year of the second level Degree in Aerospace Engineering;

academic year 2011/2012:

in charge of the Course of Advanced Computations for Aerospace Structures (3 CFU) for students of 2nd year of the second level Degree in Aerospace Engineering;

(at University of Naples) lessons inside the Courses of:

Aerospace Structures (Theory and Practice) for students of 5th year of the Degree in Aerospace Engineering (old system);

Aerospace Structures  II (Theory and Practice) for students of 3rd year of the Degree in Aerospace Engineering (new system).

Aerospace Structures (9 CFU)

Overview

This is a course on the architecture definition and preliminary design of aerospace structures. It is aimed at providing principles and tools to solve structural problems concerning the main parts of aerospace vehicles under the action of typical mission loads. Elements of Aeroelasticity and Fatigue are also provided 

 

Learning Outcomes; after the course the student should be able: to perform the preliminary design of a typical civil aircraft component according to the airworthiness regulations; to select the structural material suitable for the different structural parts of a flying vehicle; to perform proper considerations about the structural stability, the aeroelastic issues and the fatigue life of aeronautical structures.    

 

Course Content

Architectural elements of the aircraft. The primary structures. The secondary structures. Wings: the wing box, the spars, the stiffeners, the ribs. The frames. The tail. Solutions used for the different categories of aircraft. (3 hours).

The loads. The regulatory framework. Load factors. Speed characteristics. Symmetrical maneuvers. Diagram of maneuver. Diagram of load balancing. Gust loads. Diagram of gust loads. Not symmetrical maneuvers. Controlled and uncontrolled maneuvers. Ground handling. Landing loads. The pressurization. (8 hours).

Mechanical behavior of materials. Fatigue problems in aircraft structures. Allowable mechanical stress. Criterion for the selection of materials for aerospace structures. Stress-strain relations for linear elastic materials. (4 hours).

Principles of construction of aircraft structures. The materials commonly used in the construction of the aircraft. The materials associated with the various parts of the airplane. The function of the structural elements. The implementation of structural elements. Bending, shear and torsion of thin-walled beams with open and closed sections. Structural analysis of combined open and closed sections. Structural idealization of wing box and typical aircraft structures to lumped parameters. Effect of idealization on the analysis of beam sections, open and closed. Analysis of the displacements of open and closed beam sections. Stress analysis on the elements of an aircraft. Effect of taper on lumped parameters idealized beams. Analysis of the wings. Fuselage frames and wing ribs. Effects of the openings in wings and fuselages. (38 hours). Solution of assigned problems (10 hours).

Structural instability. Euler buckling load for the beams under axial compression. Inelastic buckling. Buckling of thin plates. Inelastic buckling of plates. Experimental determination of the critical load for a plate. Local buckling of the plates. Instability of stiffened panels. Evaluation of failure loads for thin plates and stiffened panels. Lateral torsional buckling of thin-walled columns. Tension field, complete and incomplete. (7 hours)

Elements of Aeroelasticity. The Aeroelasticity: background and principles. Static and dynamic aeroelastic phenomena. The divergence. Control effectiveness and reversal. Methods for the prevention of static aeroelastic phenomena. The flutter. Methods for the prevention of flutter in typical aircraft structures. (7 hours)

Elements of fatigue in aircraft structures. S-N curves. The fatigue design in the field of aerospace structures: safe-life, fail-safe structures. GAG cycle. Procedure for calculating the fatigue life of an aeronautical structural component (4 hours).

 

Prerequisite:

Knowledge of calculus, geometry and linear algebra, structural analysis.

 

Examination:

The exam consists of two separate parts:

the first part is written and is based on the solution of three typical structural schemes of aerospace interest.

the second part is oral and is performed only if the student passes the first part. The oral examination is based on all the topics presented and discussed by the teacher in the classroom. The student must be able to talk about these topics demonstrating to know in detail the associated structural issues.  

 

Office Hours:

By appointment; contact the instructor by email or at the end of class meetings.

 

References:

[1] Handouts (in progress).

[2] “Aircraft structures for engineering students”, T.H.G. Megson.

 

 

Didattica

A.A. 2023/2024

AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Course type Laurea Magistrale

Language INGLESE

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

Year taught 2023/2024

For matriculated on 2022/2023

Course year 2

Structure DIPARTIMENTO DI INGEGNERIA DELL'INNOVAZIONE

Subject matter Percorso comune

Location Brindisi

LABORATORIO DI STRUTTURE AERONAUTICHE

Corso di laurea INGEGNERIA INDUSTRIALE

Tipo corso di studio Laurea

Lingua ITALIANO

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Anno accademico di erogazione 2023/2024

Per immatricolati nel 2021/2022

Anno di corso 3

Struttura DIPARTIMENTO DI INGEGNERIA DELL'INNOVAZIONE

Percorso CURRICULUM PROGETTAZIONE AEROSPAZIALE

Sede Brindisi

A.A. 2022/2023

AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Course type Laurea Magistrale

Language INGLESE

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

Year taught 2022/2023

For matriculated on 2021/2022

Course year 2

Structure DIPARTIMENTO DI INGEGNERIA DELL'INNOVAZIONE

Subject matter Percorso comune

Location Brindisi

AEROSPACE STRUCTURES AND CERTIFICATION (MOD.1) C.I.

Corso di laurea AEROSPACE ENGINEERING

Tipo corso di studio Laurea Magistrale

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Anno accademico di erogazione 2022/2023

Per immatricolati nel 2022/2023

Anno di corso 1

Struttura DIPARTIMENTO DI INGEGNERIA DELL'INNOVAZIONE

Percorso CURRICULUM AEROSPACE SYSTEMS

LABORATORIO DI STRUTTURE AERONAUTICHE

Corso di laurea INGEGNERIA INDUSTRIALE

Tipo corso di studio Laurea

Lingua ITALIANO

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Anno accademico di erogazione 2022/2023

Per immatricolati nel 2020/2021

Anno di corso 3

Struttura DIPARTIMENTO DI INGEGNERIA DELL'INNOVAZIONE

Percorso CURRICULUM PROGETTAZIONE AEROSPAZIALE

Sede Brindisi

A.A. 2021/2022

AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Course type Laurea Magistrale

Language INGLESE

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

Year taught 2021/2022

For matriculated on 2020/2021

Course year 2

Structure DIPARTIMENTO DI INGEGNERIA DELL'INNOVAZIONE

Subject matter Percorso comune

Location Brindisi

AEROSPACE STRUCTURES AND CERTIFICATION (MOD.1) C.I.

Corso di laurea AEROSPACE ENGINEERING

Tipo corso di studio Laurea Magistrale

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Anno accademico di erogazione 2021/2022

Per immatricolati nel 2021/2022

Anno di corso 1

Struttura DIPARTIMENTO DI INGEGNERIA DELL'INNOVAZIONE

Percorso CURRICULUM AEROSPACE SYSTEMS

LABORATORIO DI STRUTTURE AERONAUTICHE

Corso di laurea INGEGNERIA INDUSTRIALE

Tipo corso di studio Laurea

Lingua ITALIANO

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Anno accademico di erogazione 2021/2022

Per immatricolati nel 2019/2020

Anno di corso 3

Struttura DIPARTIMENTO DI INGEGNERIA DELL'INNOVAZIONE

Percorso Currriculum aerospazio

Sede Brindisi

A.A. 2020/2021

LABORATORIO DI STRUTTURE AERONAUTICHE

Corso di laurea INGEGNERIA INDUSTRIALE

Tipo corso di studio Laurea

Lingua ITALIANO

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Anno accademico di erogazione 2020/2021

Per immatricolati nel 2018/2019

Anno di corso 3

Struttura DIPARTIMENTO DI INGEGNERIA DELL'INNOVAZIONE

Percorso Currriculum aerospazio

Sede Brindisi

A.A. 2019/2020

AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Course type Laurea Magistrale

Language INGLESE

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

Year taught 2019/2020

For matriculated on 2019/2020

Course year 1

Structure DIPARTIMENTO DI INGEGNERIA DELL'INNOVAZIONE

Subject matter Percorso comune

Location Brindisi

A.A. 2018/2019

AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Course type Laurea Magistrale

Language INGLESE

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

Year taught 2018/2019

For matriculated on 2018/2019

Course year 1

Structure DIPARTIMENTO DI INGEGNERIA DELL'INNOVAZIONE

Subject matter PERCORSO COMUNE

Location Brindisi

Torna all'elenco
AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Subject area ING-IND/04

Course type Laurea Magistrale

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

For matriculated on 2022/2023

Year taught 2023/2024

Course year 2

Semestre Primo Semestre (dal 18/09/2023 al 22/12/2023)

Language INGLESE

Subject matter Percorso comune (999)

Location Brindisi

Knowledge of calculus, geometry and linear algebra, structural analysis.

This is a course on the architecture definition and preliminary design of aerospace structures. It is aimed at providing principles and tools to solve structural problems concerning the main parts of aerospace vehicles under the action of typical mission loads. Elements of Aeroelasticity and Fatigue are also provided 

At the end of the course the student is expected to:

1) understand the criteria of choosing aerospace architecture and materials;

2) understand the design rules for aircraft of different size;

3) elaborate a lumped parameters structural equivalent model for preliminary computations;

4) understand the numbers coming out from the computation;

5) have a global view on the overall structural issues of a typical flying vehicle.

Two basic appraoches are followed:

- standard class lectures, where the teacher presents methods and models; students are encouraged to participate by discussing validity of the assumptions at the basis of the models and physical meanings of the results derived from the analysis performed. Example: derive the structural model of a typical wing;

- tutorial classes, during which problems are stated, where the students refine their understanding, by numerically solving the structural problems; the teacher supports the class by recalling relevant models and highlighting the procedure; some calculations (e.g. for a different set of parameters) can be proposed to the students as homework. Example: evaluate stress and displacement filed for a typical wing subjected to operating loads.

The exam consists of two separate parts:

 

the first part is written and is based on the solution of two typical structural schemes of aerospace interest;

 

the second part is oral and is based on all the topics presented and discussed by the teacher in the classroom. The student must be able to talk about these topics demonstrating to know in detail the associated structural issues.  

Exams are performed according to current University regulations (3 exams at the end of each semester, 1 exam in September, 2 extraordinaty exams for students who finished the regular course).

Exact dates are provided on the University website, as soon as they are available.

By appointment; contact the instructor by email or at the end of class meetings.

Architectural elements of the aircraft. The primary structures. The secondary structures. Wings: the wing box, the spars, the stiffeners, the ribs. The frames. The tail. Solutions used for the different categories of aircraft. (3 hours).

The loads. The regulatory framework. Load factors. Speed characteristics. Symmetrical maneuvers. Diagram of maneuver. Diagram of load balancing. Gust loads. Diagram of gust loads. Not symmetrical maneuvers. Controlled and uncontrolled maneuvers. Ground handling. Landing loads. The pressurization. (8 hours).

Mechanical behavior of materials. Fatigue problems in aircraft structures. Allowable mechanical stress. Criterion for the selection of materials for aerospace structures. Stress-strain relations for linear elastic materials. (4 hours).

Principles of construction of aircraft structures. The materials commonly used in the construction of the aircraft. The materials associated with the various parts of the airplane. The function of the structural elements. The implementation of structural elements. Bending, shear and torsion of thin-walled beams with open and closed sections. Structural analysis of combined open and closed sections. Structural idealization of wing box and typical aircraft structures to lumped parameters. Effect of idealization on the analysis of beam sections, open and closed. Analysis of the displacements of open and closed beam sections. Stress analysis on the elements of an aircraft. Effect of taper on lumped parameters idealized beams. Analysis of the wings. Fuselage frames and wing ribs. Effects of the openings in wings and fuselages. (38 hours). Solution of assigned problems (10 hours).

Structural instability. Euler buckling load for the beams under axial compression. Inelastic buckling. Buckling of thin plates. Inelastic buckling of plates. Experimental determination of the critical load for a plate. Local buckling of the plates. Instability of stiffened panels. Evaluation of failure loads for thin plates and stiffened panels. Lateral torsional buckling of thin-walled columns. Tension field, complete and incomplete. (7 hours)

Elements of Aeroelasticity. The Aeroelasticity: background and principles. Static and dynamic aeroelastic phenomena. The divergence. Control effectiveness and reversal. Methods for the prevention of static aeroelastic phenomena. The flutter. Methods for the prevention of flutter in typical aircraft structures. (7 hours)

Elements of fatigue in aircraft structures. S-N curves. The fatigue design in the field of aerospace structures: safe-life, fail-safe structures. GAG cycle. Procedure for calculating the fatigue life of an aeronautical structural component (4 hours).

[1] Handouts (in progress).

[2] “Aircraft structures for engineering students”, T.H.G. Megson.

AEROSPACE STRUCTURES (ING-IND/04)
LABORATORIO DI STRUTTURE AERONAUTICHE

Corso di laurea INGEGNERIA INDUSTRIALE

Settore Scientifico Disciplinare ING-IND/04

Tipo corso di studio Laurea

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Per immatricolati nel 2021/2022

Anno accademico di erogazione 2023/2024

Anno di corso 3

Semestre Secondo Semestre (dal 04/03/2024 al 14/06/2024)

Lingua ITALIANO

Percorso CURRICULUM PROGETTAZIONE AEROSPAZIALE (A114)

Sede Brindisi

Sono richieste conoscenze di: Analisi matematica, Fisica generale, Meccanica razionale

L’insegnamento e’ un’introduzione al mondo della sperimentazione con particolare riferimento al settore aerospaziale. Lo studente trascorrera’ buona parte del corso in Laboratorio ad apprendere i criteri con cui si progetta, si esegue e si analizza una prova sperimentale. I concetti teorici che supportano le attivita’ sperimentali saranno presentati e discussi durante la sperimentazione. Particolare enfasi sara’ attribuita alla parte pratica dell’insegnamento.

Lo studente alla fine del corso conoscera’ le modalita’ di misura delle principali grandezze fisiche che caratterizzano la meccanica sperimentale con particolare riferimento alle strutture aerospaziali. Inoltre, comprendera’ le varie problematiche collegate alla sperimentazione e sara’ in grado di applicare in modo autonomo  le conoscenze acquisite alla definizione di una prova sperimentale. Lo studente acquisira’ la capacita’ di esporre in modo chiaro e dettagliato quali sono i principi su cui si basa una tipica procedura sperimentale.

Il metodo didattico principale sara’ la dimostrazione pratica in laboratorio di come si svolge una misura ed, in generale, una complessa prova sperimentale.

L’esame consiste in un test a risposta multipla ed una discussione orale 

Principi di metrologia. Misure ed incertezze relative alla misura: incertezza di tipo A e B. Incertezza composta. La distribuzione gaussiana applicata alla sperimentazione strutturale. La misura degli spostamenti, delle velocità e delle accelerazioni. Misure di forza. Misure di deformazioni. Gli standard internazionali relativi alle prove. I sensori comunemente adottati nella sperimentazione aeronautica: caratteristiche generali, errori, caratteristiche costruttive, principi di funzionamento, grandezze principali. Gli accelerometri: principio di funzionamento e comuni schemi costruttivi. Le prove dinamiche: analisi di frequenze e di modi propri di una tipica struttura aeronautica (calcolo teorico relativo ad una trave e successiva esperienza di laboratorio n. 1). Le instabilità strutturali: il buckling calcolato teoricamente. Esperienza di laboratorio n. 2: una tipica prova di buckling. I controlli non distruttivi nel settore aeronautico: gli ultrasuoni per l’ispezione dell'integrità strutturale (esperienza di laboratorio n. 3). L'estensimetria: principi generali. Gli estensimetri elettrici. Il ponte di Wheatstone. Esperienza di Laboratorio n. 4: misure della deformazione di una trave attraverso gli estensimetri elettrici. Le differenti configurazioni estensimetriche utilizzate nella pratica per la misura di grandezze meccaniche. I materiali compositi nell'aeronautica: breve descrizione delle principali ragioni del loro crescente utilizzo e dimostrazione pratica di un tipico processo di laminazione (esperienza di laboratorio n. 5). Il rumore associato al trasporto aeronautico: il fonometro e il suo impiego (esperienza di laboratorio n. 6).

Dispense fornite dal docente

LABORATORIO DI STRUTTURE AERONAUTICHE (ING-IND/04)
AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Subject area ING-IND/04

Course type Laurea Magistrale

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

For matriculated on 2021/2022

Year taught 2022/2023

Course year 2

Semestre Primo Semestre (dal 19/09/2022 al 16/12/2022)

Language INGLESE

Subject matter Percorso comune (999)

Location Brindisi

Knowledge of calculus, geometry and linear algebra, structural analysis.

This is a course on the architecture definition and preliminary design of aerospace structures. It is aimed at providing principles and tools to solve structural problems concerning the main parts of aerospace vehicles under the action of typical mission loads. Elements of Aeroelasticity and Fatigue are also provided 

At the end of the course the student is expected to:

1) understand the criteria of choosing aerospace architecture and materials;

2) understand the design rules for aircraft of different size;

3) elaborate a lumped parameters structural equivalent model for preliminary computations;

4) understand the numbers coming out from the computation;

5) have a global view on the overall structural issues of a typical flying vehicle.

Two basic appraoches are followed:

- standard class lectures, where the teacher presents methods and models; students are encouraged to participate by discussing validity of the assumptions at the basis of the models and physical meanings of the results derived from the analysis performed. Example: derive the structural model of a typical wing;

- tutorial classes, during which problems are stated, where the students refine their understanding, by numerically solving the structural problems; the teacher supports the class by recalling relevant models and highlighting the procedure; some calculations (e.g. for a different set of parameters) can be proposed to the students as homework. Example: evaluate stress and displacement filed for a typical wing subjected to operating loads.

The exam consists of two separate parts:

 

the first part is written and is based on the solution of three typical structural schemes of aerospace interest;

 

the second part is oral and is based on all the topics presented and discussed by the teacher in the classroom. The student must be able to talk about these topics demonstrating to know in detail the associated structural issues.  

Exams are performed according to current University regulations (3 exams at the end of each semester, 1 exam in September, 2 extraordinaty exams for students who finished the regular course).

Exact dates are provided on the University website, as soon as they are available.

By appointment; contact the instructor by email or at the end of class meetings.

Architectural elements of the aircraft. The primary structures. The secondary structures. Wings: the wing box, the spars, the stiffeners, the ribs. The frames. The tail. Solutions used for the different categories of aircraft. (3 hours).

The loads. The regulatory framework. Load factors. Speed characteristics. Symmetrical maneuvers. Diagram of maneuver. Diagram of load balancing. Gust loads. Diagram of gust loads. Not symmetrical maneuvers. Controlled and uncontrolled maneuvers. Ground handling. Landing loads. The pressurization. (8 hours).

Mechanical behavior of materials. Fatigue problems in aircraft structures. Allowable mechanical stress. Criterion for the selection of materials for aerospace structures. Stress-strain relations for linear elastic materials. (4 hours).

Principles of construction of aircraft structures. The materials commonly used in the construction of the aircraft. The materials associated with the various parts of the airplane. The function of the structural elements. The implementation of structural elements. Bending, shear and torsion of thin-walled beams with open and closed sections. Structural analysis of combined open and closed sections. Structural idealization of wing box and typical aircraft structures to lumped parameters. Effect of idealization on the analysis of beam sections, open and closed. Analysis of the displacements of open and closed beam sections. Stress analysis on the elements of an aircraft. Effect of taper on lumped parameters idealized beams. Analysis of the wings. Fuselage frames and wing ribs. Effects of the openings in wings and fuselages. (38 hours). Solution of assigned problems (10 hours).

Structural instability. Euler buckling load for the beams under axial compression. Inelastic buckling. Buckling of thin plates. Inelastic buckling of plates. Experimental determination of the critical load for a plate. Local buckling of the plates. Instability of stiffened panels. Evaluation of failure loads for thin plates and stiffened panels. Lateral torsional buckling of thin-walled columns. Tension field, complete and incomplete. (7 hours)

Elements of Aeroelasticity. The Aeroelasticity: background and principles. Static and dynamic aeroelastic phenomena. The divergence. Control effectiveness and reversal. Methods for the prevention of static aeroelastic phenomena. The flutter. Methods for the prevention of flutter in typical aircraft structures. (7 hours)

Elements of fatigue in aircraft structures. S-N curves. The fatigue design in the field of aerospace structures: safe-life, fail-safe structures. GAG cycle. Procedure for calculating the fatigue life of an aeronautical structural component (4 hours).

[1] Handouts (in progress).

[2] “Aircraft structures for engineering students”, T.H.G. Megson.

AEROSPACE STRUCTURES (ING-IND/04)
AEROSPACE STRUCTURES AND CERTIFICATION (MOD.1) C.I.

Corso di laurea AEROSPACE ENGINEERING

Settore Scientifico Disciplinare ING-IND/04

Tipo corso di studio Laurea Magistrale

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Per immatricolati nel 2022/2023

Anno accademico di erogazione 2022/2023

Anno di corso 1

Lingua

Percorso CURRICULUM AEROSPACE SYSTEMS (A111)

Knowledge of calculus, basic concepts of continuum mechanics, solid mechanics.

This course is an introduction to the finite elements method: basic structural schemes are developed and solved using commercial software. In the second part Certification issues are analysed. The course is closed by an experience in Laboratory where a static test is designed, carried out and analysed.

Capability of developing a finite element model for structural applications
Capability of interpretation of the numerical results

Capability of debugging numerical models
Knowledge of the certification process in the aeronautical field
Knowledge of how a structural certification test is carried out

Frontal lectures
Assignments
Laboratory

Development of a FE model in classroom
Discussion of the certification issues

Introduction to the finite elements method. The Galerkin method for the discretization of structures. Resolution of a truss loaded with concentrated loads. The commercial software used for the Finite Elements models development. Simple elements. Masses. Bars. Beams. Panels. Solid models. Materials. Simple structural schemes. The loads. The boundary conditions. The different structural analyses. Linear static analysis. Normal modes analysis. Transient analysis. Buckling analysis. The interpretation of the results. The visualization of the results. Integration of CAD/CAE. Certification specifications in the aeronautical field. CS 23, CS 25, CS VLA, CS VLR. The certification documentation. Certification tests. The flutter certification. A full development of a structural component: from the requirements to the design and calculation; the manufacturing and test with the final interpretation of the numerical and experimental results.

Handouts prepared by the teacher

AEROSPACE STRUCTURES AND CERTIFICATION (MOD.1) C.I. (ING-IND/04)
LABORATORIO DI STRUTTURE AERONAUTICHE

Corso di laurea INGEGNERIA INDUSTRIALE

Settore Scientifico Disciplinare ING-IND/04

Tipo corso di studio Laurea

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Per immatricolati nel 2020/2021

Anno accademico di erogazione 2022/2023

Anno di corso 3

Semestre Secondo Semestre (dal 01/03/2023 al 09/06/2023)

Lingua ITALIANO

Percorso CURRICULUM PROGETTAZIONE AEROSPAZIALE (A93)

Sede Brindisi

Sono richieste conoscenze di: Analisi matematica, Fisica generale, Meccanica razionale

L’insegnamento e’ un’introduzione al mondo della sperimentazione con particolare riferimento al settore aerospaziale. Lo studente trascorrera’ buona parte del corso in Laboratorio ad apprendere i criteri con cui si progetta, si esegue e si analizza una prova sperimentale. I concetti teorici che supportano le attivita’ sperimentali saranno presentati e discussi durante la sperimentazione. Particolare enfasi sara’ attribuita alla parte pratica dell’insegnamento.

Lo studente alla fine del corso conoscera’ le modalita’ di misura delle principali grandezze fisiche che caratterizzano la meccanica sperimentale con particolare riferimento alle strutture aerospaziali. Inoltre, comprendera’ le varie problematiche collegate alla sperimentazione e sara’ in grado di applicare in modo autonomo  le conoscenze acquisite alla definizione di una prova sperimentale. Lo studente acquisira’ la capacita’ di esporre in modo chiaro e dettagliato quali sono i principi su cui si basa una tipica procedura sperimentale.

Il metodo didattico principale sara’ la dimostrazione pratica in laboratorio di come si svolge una misura ed, in generale, una complessa prova sperimentale.

L’esame consisterà in un test scritto ed una discussione orale.

Misure ed incertezze relative alla misura. La misura degli spostamenti, delle velocita’ e delle accelerazioni. Misure di forza. Misure di deformazioni. Gli standard internazionali relativi alle prove. Le prove di caratterizzazione del materiale: come ottenere le curve tensione-deformazione dei materiali. I sensori: varie tipologie, caratteristiche, linearità. Le prove statiche. La produzione di materiali compositi: esperienza di laboratorio. Gli accelerometri. Analisi dinamiche: frequenze naturali e modi propri di vibrare di una trave, valutazione numerica e sperimentale. I controlli non distruttivi nel settore aeronautico. Gli ultrasuoni per l’ispezione dell’integrita’ strutturale. Principi di estensimetria. Il rumore e la sua misurazione: il fonometro. Esperienza di laboratorio: l'impiego di estensimetri nell'analisi strutturale sperimentale. La fatica.  

Dispense fornite dal docente

LABORATORIO DI STRUTTURE AERONAUTICHE (ING-IND/04)
AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Subject area ING-IND/04

Course type Laurea Magistrale

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

For matriculated on 2020/2021

Year taught 2021/2022

Course year 2

Semestre Primo Semestre (dal 20/09/2021 al 17/12/2021)

Language INGLESE

Subject matter Percorso comune (999)

Location Brindisi

Knowledge of calculus, geometry and linear algebra, structural analysis.

This is a course on the architecture definition and preliminary design of aerospace structures. It is aimed at providing principles and tools to solve structural problems concerning the main parts of aerospace vehicles under the action of typical mission loads. Elements of Aeroelasticity and Fatigue are also provided 

At the end of the course the student is expected to:

1) understand the criteria of choosing aerospace architecture and materials;

2) understand the design rules for aircraft of different size;

3) elaborate a lumped parameters structural equivalent model for preliminary computations;

4) understand the numbers coming out from the computation;

5) have a global view on the overall structural issues of a typical flying vehicle.

Two basic appraoches are followed:

- standard class lectures, where the teacher presents methods and models; students are encouraged to participate by discussing validity of the assumptions at the basis of the models and physical meanings of the results derived from the analysis performed. Example: derive the structural model of a typical wing;

- tutorial classes, during which problems are stated, where the students refine their understanding, by numerically solving the structural problems; the teacher supports the class by recalling relevant models and highlighting the procedure; some calculations (e.g. for a different set of parameters) can be proposed to the students as homework. Example: evaluate stress and displacement filed for a typical wing subjected to operating loads.

The exam consists of two separate parts:

 

the first part is written and is based on the solution of three typical structural schemes of aerospace interest;

 

the second part is oral and is based on all the topics presented and discussed by the teacher in the classroom. The student must be able to talk about these topics demonstrating to know in detail the associated structural issues.  

Exams are performed according to current University regulations (3 exams at the end of each semester, 1 exam in September, 2 extraordinaty exams for students who finished the regular course).

Exact dates are provided on the University website, as soon as they are available.

By appointment; contact the instructor by email or at the end of class meetings.

Architectural elements of the aircraft. The primary structures. The secondary structures. Wings: the wing box, the spars, the stiffeners, the ribs. The frames. The tail. Solutions used for the different categories of aircraft. (3 hours).

The loads. The regulatory framework. Load factors. Speed characteristics. Symmetrical maneuvers. Diagram of maneuver. Diagram of load balancing. Gust loads. Diagram of gust loads. Not symmetrical maneuvers. Controlled and uncontrolled maneuvers. Ground handling. Landing loads. The pressurization. (8 hours).

Mechanical behavior of materials. Fatigue problems in aircraft structures. Allowable mechanical stress. Criterion for the selection of materials for aerospace structures. Stress-strain relations for linear elastic materials. (4 hours).

Principles of construction of aircraft structures. The materials commonly used in the construction of the aircraft. The materials associated with the various parts of the airplane. The function of the structural elements. The implementation of structural elements. Bending, shear and torsion of thin-walled beams with open and closed sections. Structural analysis of combined open and closed sections. Structural idealization of wing box and typical aircraft structures to lumped parameters. Effect of idealization on the analysis of beam sections, open and closed. Analysis of the displacements of open and closed beam sections. Stress analysis on the elements of an aircraft. Effect of taper on lumped parameters idealized beams. Analysis of the wings. Fuselage frames and wing ribs. Effects of the openings in wings and fuselages. (38 hours). Solution of assigned problems (10 hours).

Structural instability. Euler buckling load for the beams under axial compression. Inelastic buckling. Buckling of thin plates. Inelastic buckling of plates. Experimental determination of the critical load for a plate. Local buckling of the plates. Instability of stiffened panels. Evaluation of failure loads for thin plates and stiffened panels. Lateral torsional buckling of thin-walled columns. Tension field, complete and incomplete. (7 hours)

Elements of Aeroelasticity. The Aeroelasticity: background and principles. Static and dynamic aeroelastic phenomena. The divergence. Control effectiveness and reversal. Methods for the prevention of static aeroelastic phenomena. The flutter. Methods for the prevention of flutter in typical aircraft structures. (7 hours)

Elements of fatigue in aircraft structures. S-N curves. The fatigue design in the field of aerospace structures: safe-life, fail-safe structures. GAG cycle. Procedure for calculating the fatigue life of an aeronautical structural component (4 hours).

[1] Handouts (in progress).

[2] “Aircraft structures for engineering students”, T.H.G. Megson.

AEROSPACE STRUCTURES (ING-IND/04)
AEROSPACE STRUCTURES AND CERTIFICATION (MOD.1) C.I.

Corso di laurea AEROSPACE ENGINEERING

Settore Scientifico Disciplinare ING-IND/04

Tipo corso di studio Laurea Magistrale

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Per immatricolati nel 2021/2022

Anno accademico di erogazione 2021/2022

Anno di corso 1

Semestre Primo Semestre (dal 20/09/2021 al 17/12/2021)

Lingua

Percorso CURRICULUM AEROSPACE SYSTEMS (A111)

Knowledge of calculus, basic concepts of continuum mechanics, solid mechanics.

This course is an introduction to the finite elements method: basic structural schemes are developed and solved using commercial software. In the second part Certification issues are analysed. The course is closed by an experience in Laboratory where a static test is designed, carried out and analysed.

Capability of developing a finite element model for structural applications
Capability of interpretation of the numerical results

Capability of debugging numerical models
Knowledge of the certification process in the aeronautical field
Knowledge of how a structural certification test is carried out

Frontal lectures
Assignments
Laboratory

Development of a FE model in classroom
Discussion of the certification issues

Introduction to the finite elements method. The Galerkin method for the discretization of structures. Resolution of a truss loaded with concentrated loads. The commercial software used for the Finite Elements models development. Simple elements. Masses. Bars. Beams. Panels. Solid models. Materials. Simple structural schemes. The loads. The boundary conditions. The different structural analyses. Linear static analysis. Normal modes analysis. Transient analysis. Buckling analysis. The interpretation of the results. The visualization of the results. Integration of CAD/CAE. Certification specifications in the aeronautical field. CS 23, CS 25, CS VLA, CS VLR. The certification documentation. Certification tests. The flutter certification. A full development of a structural component: from the requirements to the design and calculation; the manufacturing and test with the final interpretation of the numerical and experimental results.

Handouts prepared by the teacher

AEROSPACE STRUCTURES AND CERTIFICATION (MOD.1) C.I. (ING-IND/04)
LABORATORIO DI STRUTTURE AERONAUTICHE

Corso di laurea INGEGNERIA INDUSTRIALE

Settore Scientifico Disciplinare ING-IND/04

Tipo corso di studio Laurea

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Per immatricolati nel 2019/2020

Anno accademico di erogazione 2021/2022

Anno di corso 3

Semestre Secondo Semestre (dal 01/03/2022 al 10/06/2022)

Lingua ITALIANO

Percorso Currriculum aerospazio (A93)

Sede Brindisi

Sono richieste conoscenze di: Analisi matematica, Fisica generale, Meccanica razionale

L’insegnamento e’ un’introduzione al mondo della sperimentazione con particolare riferimento al settore aerospaziale. Lo studente trascorrera’ buona parte del corso in Laboratorio ad apprendere i criteri con cui si progetta, si esegue e si analizza una prova sperimentale. I concetti teorici che supportano le attivita’ sperimentali saranno presentati e discussi durante la sperimentazione. Particolare enfasi sara’ attribuita alla parte pratica dell’insegnamento.

Lo studente alla fine del corso conoscera’ le modalita’ di misura delle principali grandezze fisiche che caratterizzano la meccanica sperimentale con particolare riferimento alle strutture aerospaziali. Inoltre, comprendera’ le varie problematiche collegate alla sperimentazione e sara’ in grado di applicare in modo autonomo  le conoscenze acquisite alla definizione di una prova sperimentale. Lo studente acquisira’ la capacita’ di esporre in modo chiaro e dettagliato quali sono i principi su cui si basa una tipica procedura sperimentale.

Il metodo didattico principale sara’ la dimostrazione pratica in laboratorio di come si svolge una misura ed, in generale, una complessa prova sperimentale.

L’esame consiste in un test a risposta multipla ed una discussione orale 

Misure ed incertezze relative alla misura. La misura degli spostamenti, delle velocita’ e delle accelerazioni. Misure di forza. Misure di deformazioni. Gli standard internazionali relativi alle prove. Le prove di caratterizzazione del materiale: come ottenere le curve tensione-deformazione dei materiali. Le prove statiche. Esempio di prova statica: un giunto rivettato. I giunti adesivi. Prove statiche di interesse aeronautico: la certificazione delle strutture aeronautiche a carico limite e a carico ultimo. Prova di buckling. Compression buckling. Shear buckling. La tensione diagonale: la trave di Wagner in teoria ed in pratica. Analisi dinamiche: frequenze naturali e modi propri di vibrare di una trave. I controlli non distruttivi nel settore aeronautico. Gli ultrasuoni per l’ispezione dell’integrita’ strutturale.

Dispense fornite dal docente

LABORATORIO DI STRUTTURE AERONAUTICHE (ING-IND/04)
LABORATORIO DI STRUTTURE AERONAUTICHE

Corso di laurea INGEGNERIA INDUSTRIALE

Settore Scientifico Disciplinare ING-IND/04

Tipo corso di studio Laurea

Crediti 6.0

Ripartizione oraria Ore totali di attività frontale: 54.0

Per immatricolati nel 2018/2019

Anno accademico di erogazione 2020/2021

Anno di corso 3

Semestre Secondo Semestre (dal 01/03/2021 al 11/06/2021)

Lingua ITALIANO

Percorso Currriculum aerospazio (A93)

Sede Brindisi

Sono richieste conoscenze di: Analisi matematica, Fisica generale, Meccanica razionale

L’insegnamento e’ un’introduzione al mondo della sperimentazione con particolare riferimento al settore aerospaziale. Lo studente trascorrera’ buona parte del corso in Laboratorio ad apprendere i criteri con cui si progetta, si esegue e si analizza una prova sperimentale. I concetti teorici che supportano le attivita’ sperimentali saranno presentati e discussi durante la sperimentazione. Particolare enfasi sara’ attribuita alla parte pratica dell’insegnamento.

Lo studente alla fine del corso conoscera’ le modalita’ di misura delle principali grandezze fisiche che caratterizzano la meccanica sperimentale con particolare riferimento alle strutture aerospaziali. Inoltre, comprendera’ le varie problematiche collegate alla sperimentazione e sara’ in grado di applicare in modo autonomo  le conoscenze acquisite alla definizione di una prova sperimentale. Lo studente acquisira’ la capacita’ di esporre in modo chiaro e dettagliato quali sono i principi su cui si basa una tipica procedura sperimentale.

Il metodo didattico principale sara’ la dimostrazione pratica in laboratorio di come si svolge una misura ed, in generale, una complessa prova sperimentale.

L’esame consistera’ in una prova sperimentale da progettare, eseguire e analizzare in laboratorio.

Misure ed incertezze relative alla misura. La misura degli spostamenti, delle velocita’ e delle accelerazioni. Misure di forza. Misure di deformazioni. Gli standard internazionali relativi alle prove. Le prove di caratterizzazione del materiale: come ottenere le curve tensione-deformazione dei materiali. Le prove statiche. Esempio di prova statica: un giunto rivettato. I giunti adesivi. Prove statiche di interesse aeronautico: la certificazione delle strutture aeronautiche a carico limite e a carico ultimo. Prova di buckling. Compression buckling. Shear buckling. La tensione diagonale: la trave di Wagner in teoria ed in pratica. Analisi dinamiche: frequenze naturali e modi propri di vibrare di una trave. I controlli non distruttivi nel settore aeronautico. Gli ultrasuoni per l’ispezione dell’integrita’ strutturale.

Dispense fornite dal docente

LABORATORIO DI STRUTTURE AERONAUTICHE (ING-IND/04)
AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Subject area ING-IND/04

Course type Laurea Magistrale

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

For matriculated on 2019/2020

Year taught 2019/2020

Course year 1

Semestre Secondo Semestre (dal 02/03/2020 al 05/06/2020)

Language INGLESE

Subject matter Percorso comune (999)

Location Brindisi

Knowledge of calculus, geometry and linear algebra, structural analysis.

This is a course on the architecture definition and preliminary design of aerospace structures. It is aimed at providing principles and tools to solve structural problems concerning the main parts of aerospace vehicles under the action of typical mission loads. Elements of Aeroelasticity and Fatigue are also provided 

At the end of the course the student is expected to:

1) understand the criteria of choosing aerospace architecture and materials;

2) understand the design rules for aircraft of different size;

3) elaborate a lumped parameters structural equivalent model for preliminary computations;

4) understand the numbers coming out from the computation;

5) have a global view on the overall structural issues of a typical flying vehicle.

Two basic appraoches are followed:

- standard class lectures, where the teacher presents methods and models; students are encouraged to participate by discussing validity of the assumptions at the basis of the models and physical meanings of the results derived from the analysis performed. Example: derive the structural model of a typical wing;

- tutorial classes, during which problems are stated, where the students refine their understanding, by numerically solving the structural problems; the teacher supports the class by recalling relevant models and highlighting the procedure; some calculations (e.g. for a different set of parameters) can be proposed to the students as homework. Example: evaluate stress and displacement filed for a typical wing subjected to operating loads.

The exam consists of two separate parts:

 

the first part is written and is based on the solution of three typical structural schemes of aerospace interest;

 

the second part is oral and is based on all the topics presented and discussed by the teacher in the classroom. The student must be able to talk about these topics demonstrating to know in detail the associated structural issues.  

Exams are performed according to current University regulations (3 exams at the end of each semester, 1 exam in September, 2 extraordinaty exams for students who finished the regular course).

Exact dates are provided on the University website, as soon as they are available.

By appointment; contact the instructor by email or at the end of class meetings.

Architectural elements of the aircraft. The primary structures. The secondary structures. Wings: the wing box, the spars, the stiffeners, the ribs. The frames. The tail. Solutions used for the different categories of aircraft. (3 hours).

The loads. The regulatory framework. Load factors. Speed characteristics. Symmetrical maneuvers. Diagram of maneuver. Diagram of load balancing. Gust loads. Diagram of gust loads. Not symmetrical maneuvers. Controlled and uncontrolled maneuvers. Ground handling. Landing loads. The pressurization. (8 hours).

Mechanical behavior of materials. Fatigue problems in aircraft structures. Allowable mechanical stress. Criterion for the selection of materials for aerospace structures. Stress-strain relations for linear elastic materials. (4 hours).

Principles of construction of aircraft structures. The materials commonly used in the construction of the aircraft. The materials associated with the various parts of the airplane. The function of the structural elements. The implementation of structural elements. Bending, shear and torsion of thin-walled beams with open and closed sections. Structural analysis of combined open and closed sections. Structural idealization of wing box and typical aircraft structures to lumped parameters. Effect of idealization on the analysis of beam sections, open and closed. Analysis of the displacements of open and closed beam sections. Stress analysis on the elements of an aircraft. Effect of taper on lumped parameters idealized beams. Analysis of the wings. Fuselage frames and wing ribs. Effects of the openings in wings and fuselages. (38 hours). Solution of assigned problems (10 hours).

Structural instability. Euler buckling load for the beams under axial compression. Inelastic buckling. Buckling of thin plates. Inelastic buckling of plates. Experimental determination of the critical load for a plate. Local buckling of the plates. Instability of stiffened panels. Evaluation of failure loads for thin plates and stiffened panels. Lateral torsional buckling of thin-walled columns. Tension field, complete and incomplete. (7 hours)

Elements of Aeroelasticity. The Aeroelasticity: background and principles. Static and dynamic aeroelastic phenomena. The divergence. Control effectiveness and reversal. Methods for the prevention of static aeroelastic phenomena. The flutter. Methods for the prevention of flutter in typical aircraft structures. (7 hours)

Elements of fatigue in aircraft structures. S-N curves. The fatigue design in the field of aerospace structures: safe-life, fail-safe structures. GAG cycle. Procedure for calculating the fatigue life of an aeronautical structural component (4 hours).

[1] Handouts (in progress).

[2] “Aircraft structures for engineering students”, T.H.G. Megson.

AEROSPACE STRUCTURES (ING-IND/04)
AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Subject area ING-IND/04

Course type Laurea Magistrale

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

For matriculated on 2018/2019

Year taught 2018/2019

Course year 1

Semestre Secondo Semestre (dal 04/03/2019 al 04/06/2019)

Language INGLESE

Subject matter PERCORSO COMUNE (999)

Location Brindisi

Knowledge of calculus, geometry and linear algebra, structural analysis.

This is a course on the architecture definition and preliminary design of aerospace structures. It is aimed at providing principles and tools to solve structural problems concerning the main parts of aerospace vehicles under the action of typical mission loads. Elements of Aeroelasticity and Fatigue are also provided 

At the end of the course the student is expected to:

1) understand the criteria of choosing aerospace architecture and materials;

2) understand the design rules for aircraft of different size;

3) elaborate a lumped parameters structural equivalent model for preliminary computations;

4) understand the numbers coming out from the computation;

5) have a global view on the overall structural issues of a typical flying vehicle.

Two basic appraoches are followed:

- standard class lectures, where the teacher presents methods and models; students are encouraged to participate by discussing validity of the assumptions at the basis of the models and physical meanings of the results derived from the analysis performed. Example: derive the structural model of a typical wing;

- tutorial classes, during which problems are stated, where the students refine their understanding, by numerically solving the structural problems; the teacher supports the class by recalling relevant models and highlighting the procedure; some calculations (e.g. for a different set of parameters) can be proposed to the students as homework. Example: evaluate stress and displacement filed for a typical wing subjected to operating loads.

The exam consists of two separate parts:

 

the first part is written and is based on the solution of three typical structural schemes of aerospace interest;

 

the second part is oral and is based on all the topics presented and discussed by the teacher in the classroom. The student must be able to talk about these topics demonstrating to know in detail the associated structural issues.  

Exams are performed according to current University regulations (3 exams at the end of each semester, 1 exam in September, 2 extraordinaty exams for students who finished the regular course).

Exact dates are provided on the University website, as soon as they are available.

By appointment; contact the instructor by email or at the end of class meetings.

Architectural elements of the aircraft. The primary structures. The secondary structures. Wings: the wing box, the spars, the stiffeners, the ribs. The frames. The tail. Solutions used for the different categories of aircraft. (3 hours).

The loads. The regulatory framework. Load factors. Speed characteristics. Symmetrical maneuvers. Diagram of maneuver. Diagram of load balancing. Gust loads. Diagram of gust loads. Not symmetrical maneuvers. Controlled and uncontrolled maneuvers. Ground handling. Landing loads. The pressurization. (8 hours).

Mechanical behavior of materials. Fatigue problems in aircraft structures. Allowable mechanical stress. Criterion for the selection of materials for aerospace structures. Stress-strain relations for linear elastic materials. (4 hours).

Principles of construction of aircraft structures. The materials commonly used in the construction of the aircraft. The materials associated with the various parts of the airplane. The function of the structural elements. The implementation of structural elements. Bending, shear and torsion of thin-walled beams with open and closed sections. Structural analysis of combined open and closed sections. Structural idealization of wing box and typical aircraft structures to lumped parameters. Effect of idealization on the analysis of beam sections, open and closed. Analysis of the displacements of open and closed beam sections. Stress analysis on the elements of an aircraft. Effect of taper on lumped parameters idealized beams. Analysis of the wings. Fuselage frames and wing ribs. Effects of the openings in wings and fuselages. (38 hours). Solution of assigned problems (10 hours).

Structural instability. Euler buckling load for the beams under axial compression. Inelastic buckling. Buckling of thin plates. Inelastic buckling of plates. Experimental determination of the critical load for a plate. Local buckling of the plates. Instability of stiffened panels. Evaluation of failure loads for thin plates and stiffened panels. Lateral torsional buckling of thin-walled columns. Tension field, complete and incomplete. (7 hours)

Elements of Aeroelasticity. The Aeroelasticity: background and principles. Static and dynamic aeroelastic phenomena. The divergence. Control effectiveness and reversal. Methods for the prevention of static aeroelastic phenomena. The flutter. Methods for the prevention of flutter in typical aircraft structures. (7 hours)

Elements of fatigue in aircraft structures. S-N curves. The fatigue design in the field of aerospace structures: safe-life, fail-safe structures. GAG cycle. Procedure for calculating the fatigue life of an aeronautical structural component (4 hours).

[1] Handouts (in progress).

[2] “Aircraft structures for engineering students”, T.H.G. Megson.

AEROSPACE STRUCTURES (ING-IND/04)
AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Subject area ING-IND/04

Course type Laurea Magistrale

Credits 9.0

Teaching hours Ore totali di attività frontale: 0.0

For matriculated on 2017/2018

Year taught 2017/2018

Course year 1

Semestre Secondo Semestre (dal 01/03/2018 al 01/06/2018)

Language INGLESE

Subject matter PERCORSO COMUNE (999)

Location Brindisi

Knowledge of calculus, geometry and linear algebra, structural analysis.

This is a course on the architecture definition and preliminary design of aerospace structures. It is aimed at providing principles and tools to solve structural problems concerning the main parts of aerospace vehicles under the action of typical mission loads. Elements of Aeroelasticity and Fatigue are also provided 

At the end of the course the student is expected to:

1) understand the criteria of choosing aerospace architecture and materials;

2) understand the design rules for aircraft of different size;

3) elaborate a lumped parameters structural equivalent model for preliminary computations;

4) understand the numbers coming out from the computation;

5) have a global view on the overall structural issues of a typical flying vehicle.

Two basic appraoches are followed:

- standard class lectures, where the teacher presents methods and models; students are encouraged to participate by discussing validity of the assumptions at the basis of the models and physical meanings of the results derived from the analysis performed. Example: derive the structural model of a typical wing;

- tutorial classes, during which problems are stated, where the students refine their understanding, by numerically solving the structural problems; the teacher supports the class by recalling relevant models and highlighting the procedure; some calculations (e.g. for a different set of parameters) can be proposed to the students as homework. Example: evaluate stress and displacement filed for a typical wing subjected to operating loads.

The exam consists of two separate parts:

 

the first part is written and is based on the solution of three typical structural schemes of aerospace interest;

 

the second part is oral and is based on all the topics presented and discussed by the teacher in the classroom. The student must be able to talk about these topics demonstrating to know in detail the associated structural issues.  

Exams are performed according to current University regulations (3 exams at the end of each semester, 1 exam in September, 2 extraordinaty exams for students who finished the regular course).

Exact dates are provided on the University website, as soon as they are available.

By appointment; contact the instructor by email or at the end of class meetings.

Architectural elements of the aircraft. The primary structures. The secondary structures. Wings: the wing box, the spars, the stiffeners, the ribs. The frames. The tail. Solutions used for the different categories of aircraft. (3 hours).

The loads. The regulatory framework. Load factors. Speed characteristics. Symmetrical maneuvers. Diagram of maneuver. Diagram of load balancing. Gust loads. Diagram of gust loads. Not symmetrical maneuvers. Controlled and uncontrolled maneuvers. Ground handling. Landing loads. The pressurization. (8 hours).

Mechanical behavior of materials. Fatigue problems in aircraft structures. Allowable mechanical stress. Criterion for the selection of materials for aerospace structures. Stress-strain relations for linear elastic materials. (4 hours).

Principles of construction of aircraft structures. The materials commonly used in the construction of the aircraft. The materials associated with the various parts of the airplane. The function of the structural elements. The implementation of structural elements. Bending, shear and torsion of thin-walled beams with open and closed sections. Structural analysis of combined open and closed sections. Structural idealization of wing box and typical aircraft structures to lumped parameters. Effect of idealization on the analysis of beam sections, open and closed. Analysis of the displacements of open and closed beam sections. Stress analysis on the elements of an aircraft. Effect of taper on lumped parameters idealized beams. Analysis of the wings. Fuselage frames and wing ribs. Effects of the openings in wings and fuselages. (38 hours). Solution of assigned problems (10 hours).

Structural instability. Euler buckling load for the beams under axial compression. Inelastic buckling. Buckling of thin plates. Inelastic buckling of plates. Experimental determination of the critical load for a plate. Local buckling of the plates. Instability of stiffened panels. Evaluation of failure loads for thin plates and stiffened panels. Lateral torsional buckling of thin-walled columns. Tension field, complete and incomplete. (7 hours)

Elements of Aeroelasticity. The Aeroelasticity: background and principles. Static and dynamic aeroelastic phenomena. The divergence. Control effectiveness and reversal. Methods for the prevention of static aeroelastic phenomena. The flutter. Methods for the prevention of flutter in typical aircraft structures. (7 hours)

Elements of fatigue in aircraft structures. S-N curves. The fatigue design in the field of aerospace structures: safe-life, fail-safe structures. GAG cycle. Procedure for calculating the fatigue life of an aeronautical structural component (4 hours).

[1] Handouts (in progress).

[2] “Aircraft structures for engineering students”, T.H.G. Megson.

AEROSPACE STRUCTURES (ING-IND/04)
AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Subject area ING-IND/04

Course type Laurea Magistrale

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

For matriculated on 2016/2017

Year taught 2016/2017

Course year 1

Semestre Secondo Semestre (dal 01/03/2017 al 02/06/2017)

Language INGLESE

Subject matter PERCORSO COMUNE (999)

Location Brindisi

Knowledge of calculus, geometry and linear algebra, structural analysis.

This is a course on the architecture definition and preliminary design of aerospace structures. It is aimed at providing principles and tools to solve structural problems concerning the main parts of aerospace vehicles under the action of typical mission loads. Elements of Aeroelasticity and Fatigue are also provided 

At the end of the course the student is expected to:

1) understand the criteria of choosing aerospace architecture and materials;

2) understand the design rules for aircraft of different size;

3) elaborate a lumped parameters structural equivalent model for preliminary computations;

4) understand the numbers coming out from the computation;

5) have a global view on the overall structural issues of a typical flying vehicle.

Two basic appraoches are followed:

- standard class lectures, where the teacher presents methods and models; students are encouraged to participate by discussing validity of the assumptions at the basis of the models and physical meanings of the results derived from the analysis performed. Example: derive the structural model of a typical wing;

- tutorial classes, during which problems are stated, where the students refine their understanding, by numerically solving the structural problems; the teacher supports the class by recalling relevant models and highlighting the procedure; some calculations (e.g. for a different set of parameters) can be proposed to the students as homework. Example: evaluate stress and displacement filed for a typical wing subjected to operating loads.

The exam consists of two separate parts:

 

the first part is written and is based on the solution of three typical structural schemes of aerospace interest;

 

the second part is oral and is performed only if the student passes the first part. The oral examination is based on all the topics presented and discussed by the teacher in the classroom. The student must be able to talk about these topics demonstrating to know in detail the associated structural issues.  

Exams are performed according to current University regulations (3 exams at the end of each semester, 1 exam in September, 2 extraordinaty exams for students who finished the regular course).

Exact dates are provided on the University website, as soon as they are available.

By appointment; contact the instructor by email or at the end of class meetings.

Architectural elements of the aircraft. The primary structures. The secondary structures. Wings: the wing box, the spars, the stiffeners, the ribs. The frames. The tail. Solutions used for the different categories of aircraft. (3 hours).

The loads. The regulatory framework. Load factors. Speed characteristics. Symmetrical maneuvers. Diagram of maneuver. Diagram of load balancing. Gust loads. Diagram of gust loads. Not symmetrical maneuvers. Controlled and uncontrolled maneuvers. Ground handling. Landing loads. The pressurization. (8 hours).

Mechanical behavior of materials. Fatigue problems in aircraft structures. Allowable mechanical stress. Criterion for the selection of materials for aerospace structures. Stress-strain relations for linear elastic materials. (4 hours).

Principles of construction of aircraft structures. The materials commonly used in the construction of the aircraft. The materials associated with the various parts of the airplane. The function of the structural elements. The implementation of structural elements. Bending, shear and torsion of thin-walled beams with open and closed sections. Structural analysis of combined open and closed sections. Structural idealization of wing box and typical aircraft structures to lumped parameters. Effect of idealization on the analysis of beam sections, open and closed. Analysis of the displacements of open and closed beam sections. Stress analysis on the elements of an aircraft. Effect of taper on lumped parameters idealized beams. Analysis of the wings. Fuselage frames and wing ribs. Effects of the openings in wings and fuselages. (38 hours). Solution of assigned problems (10 hours).

Structural instability. Euler buckling load for the beams under axial compression. Inelastic buckling. Buckling of thin plates. Inelastic buckling of plates. Experimental determination of the critical load for a plate. Local buckling of the plates. Instability of stiffened panels. Evaluation of failure loads for thin plates and stiffened panels. Lateral torsional buckling of thin-walled columns. Tension field, complete and incomplete. (7 hours)

Elements of Aeroelasticity. The Aeroelasticity: background and principles. Static and dynamic aeroelastic phenomena. The divergence. Control effectiveness and reversal. Methods for the prevention of static aeroelastic phenomena. The flutter. Methods for the prevention of flutter in typical aircraft structures. (7 hours)

Elements of fatigue in aircraft structures. S-N curves. The fatigue design in the field of aerospace structures: safe-life, fail-safe structures. GAG cycle. Procedure for calculating the fatigue life of an aeronautical structural component (4 hours).

[1] Handouts (in progress).

[2] “Aircraft structures for engineering students”, T.H.G. Megson.

AEROSPACE STRUCTURES (ING-IND/04)
AEROSPACE STRUCTURES

Degree course AEROSPACE ENGINEERING

Subject area ING-IND/04

Course type Laurea Magistrale

Credits 9.0

Teaching hours Ore totali di attività frontale: 81.0

For matriculated on 2015/2016

Year taught 2015/2016

Course year 1

Semestre Secondo Semestre (dal 29/02/2016 al 03/06/2016)

Language INGLESE

Subject matter PERCORSO COMUNE (999)

Location Brindisi

AEROSPACE STRUCTURES (ING-IND/04)
AEROSPACE STRUCTURES

Corso di laurea AEROSPACE ENGINEERING

Settore Scientifico Disciplinare ING-IND/04

Tipo corso di studio Laurea Magistrale

Crediti 9.0

Ripartizione oraria Ore totali di attività frontale: 0.0

Per immatricolati nel 2014/2015

Anno accademico di erogazione 2014/2015

Anno di corso 1

Semestre Secondo Semestre (dal 02/03/2015 al 06/06/2015)

Lingua

Percorso PERCORSO COMUNE (999)

Sede BRINDISI

Knowledge of calculus, geometry and linear algebra, structural analysis.

This is a course on the architecture definition and preliminary design of aerospace structures. It is aimed at providing principles and tools to solve structural problems concerning the main parts of aerospace vehicles under the action of typical mission loads. Elements of Aeroelasticity and Fatigue are also provided 

At the end of the course the student is expected to:

1) understand the criteria of choosing aerospace architecture and materials;

2) understand the design rules for aircraft of different size;

3) elaborate a lumped parameters structural equivalent model for preliminary computations;

4) understand the numbers coming out from the computation;

5) have a global view on the overall structural issues of a typical flying vehicle.

Two basic appraoches are followed:

- standard class lectures, where the teacher presents methods and models; students are encouraged to participate by discussing validity of the assumptions at the basis of the models and physical meanings of the results derived from the analysis performed. Example: derive the structural model of a typical wing;

- tutorial classes, during which problems are stated, where the students refine their understanding, by numerically solving the structural problems; the teacher supports the class by recalling relevant models and highlighting the procedure; some calculations (e.g. for a different set of parameters) can be proposed to the students as homework. Example: evaluate stress and displacement filed for a typical wing subjected to operating loads.

The exam consists of two separate parts:

 

the first part is written and is based on the solution of three typical structural schemes of aerospace interest;

 

the second part is oral and is performed only if the student passes the first part. The oral examination is based on all the topics presented and discussed by the teacher in the classroom. The student must be able to talk about these topics demonstrating to know in detail the associated structural issues.  

Exams are performed according to current University regulations (3 exams at the end of each semester, 1 exam in September, 2 extraordinaty exams for students who finished the regular course).

Exact dates are provided on the University website, as soon as they are available.

By appointment; contact the instructor by email or at the end of class meetings.

Architectural elements of the aircraft. The primary structures. The secondary structures. Wings: the wing box, the spars, the stiffeners, the ribs. The frames. The tail. Solutions used for the different categories of aircraft. (3 hours).

The loads. The regulatory framework. Load factors. Speed characteristics. Symmetrical maneuvers. Diagram of maneuver. Diagram of load balancing. Gust loads. Diagram of gust loads. Not symmetrical maneuvers. Controlled and uncontrolled maneuvers. Ground handling. Landing loads. The pressurization. (8 hours).

Mechanical behavior of materials. Fatigue problems in aircraft structures. Allowable mechanical stress. Criterion for the selection of materials for aerospace structures. Stress-strain relations for linear elastic materials. (4 hours).

Principles of construction of aircraft structures. The materials commonly used in the construction of the aircraft. The materials associated with the various parts of the airplane. The function of the structural elements. The implementation of structural elements. Bending, shear and torsion of thin-walled beams with open and closed sections. Structural analysis of combined open and closed sections. Structural idealization of wing box and typical aircraft structures to lumped parameters. Effect of idealization on the analysis of beam sections, open and closed. Analysis of the displacements of open and closed beam sections. Stress analysis on the elements of an aircraft. Effect of taper on lumped parameters idealized beams. Analysis of the wings. Fuselage frames and wing ribs. Effects of the openings in wings and fuselages. (38 hours). Solution of assigned problems (10 hours).

Structural instability. Euler buckling load for the beams under axial compression. Inelastic buckling. Buckling of thin plates. Inelastic buckling of plates. Experimental determination of the critical load for a plate. Local buckling of the plates. Instability of stiffened panels. Evaluation of failure loads for thin plates and stiffened panels. Lateral torsional buckling of thin-walled columns. Tension field, complete and incomplete. (7 hours)

Elements of Aeroelasticity. The Aeroelasticity: background and principles. Static and dynamic aeroelastic phenomena. The divergence. Control effectiveness and reversal. Methods for the prevention of static aeroelastic phenomena. The flutter. Methods for the prevention of flutter in typical aircraft structures. (7 hours)

Elements of fatigue in aircraft structures. S-N curves. The fatigue design in the field of aerospace structures: safe-life, fail-safe structures. GAG cycle. Procedure for calculating the fatigue life of an aeronautical structural component (4 hours).

[1] Handouts (in progress).

[2] “Aircraft structures for engineering students”, T.H.G. Megson.

AEROSPACE STRUCTURES (ING-IND/04)
AEROSPACE STRUCTURES

Corso di laurea AEROSPACE ENGINEERING

Settore Scientifico Disciplinare ING-IND/04

Tipo corso di studio Laurea Magistrale

Crediti 9.0

Ripartizione oraria Ore totali di attività frontale: 0.0

Per immatricolati nel 2013/2014

Anno accademico di erogazione 2013/2014

Anno di corso 1

Semestre Primo Semestre (dal 30/09/2013 al 21/12/2013)

Lingua

Percorso PERCORSO COMUNE (999)

Sede BRINDISI

AEROSPACE STRUCTURES (ING-IND/04)