Aerospace structural Analysis

aerospace-structural-analysis

Syllabus

Faculty: Dr. Sangram Samal

Course Name : Aerospace structural Analysis

Code(Credit) : CUTM1099(3-0-3)

Course Objectives

To provide the students an understanding on Aerospace Structures and Materials
To study the shear stresses in wing, fuselage, wing spar, attachments
To study velocity and load diagram for different condition

Learning Outcomes

Understand Aerospace Structures and Materials
Understand load paths and demonstrate the knowledge of structural behavior in fuselage and wing structures
Calculate the stresses in wing, fuselage, wing spar, attachments
Differentiate and analyse the types of aircraft fittings, bolt fittings, Riveted connections and their failures.
Estimate the load of aircraft at different condition
Able to complete structural design in project mode

Course Syllabus

Module I: Aerospace Structures and Materials uses (6hrs)
monocoque, semimonocoque, corrugated, sandwich structure, reinforced and honeycomb structures, aerospace materials, metallic and non metallic materials, use of aluminum alloy, titanium, stainless steel, composite and ceramic materials.
Module II: ANALYSIS OF WINGS (5hrs)
Basics of aircraft components and functions of parts, Construction concepts for wing, control surfaces and tail plane. Analysis of multi‐cell wing structures for bending, shear and torsional loads. Method of successive approximation, analysis of ribs, cut outs in wings.

Module III: ANALYSIS OF FUSELAGE (4hrs)
Construction concepts for fuselage, Analysis of fuselage structures for bending, shear and torsional loads. Analysis of fuselage frames, cut outs in fuselages.

Module IV: ANALYSIS OF WING SPAR (5hrs)
Types of spar construction, diagonal tension concept, semi‐diagonal tension concept, design of spar web: shear resistant, diagonal tension, semi‐diagonal tension web. Analysis of parallel and tapered spar.

Module VI: AIRCRAFT FITTINGS AND CONNECTIONS (6 hrs)
Types of aircraft fittings, Wing to spar attachments, Single bolt fittings, Multi bolt fittings, Bolt group analysis, Shear, bending and tensile failures of bolts, Analysis of lugs to normal and oblique loadings. Riveted connections and strength of rivets.

Module VII: V-N DIAGRAM WITH GUST LOAD(3 hrs)
Loads on an aircraft for different condition, V-n diagram,

Project- Students are expected to complete following

Perform structural calculations establish the structural requirements and constraints apprehend the applicable structural standards for an aircraft
Perform structural calculations such as buckling, natural mode and frequencies, fatigue, flutter speed, reserve factor, stress analysis on various aircraft sections and design concepts for appropriate aircraft loads. Various analyses to be performed are free-free analysis, normal modes, linear and nonlinear analysis, buckling and post buckling analysis.
Joint and fastener calculations, attachment lugs etc.
Perform fatigue life and crack growth analysis through selection of critical primary and secondary locations on structure
Carry out optimization on the finalized design concepts and make final layout.
Create composite canopy for aircraft

Steps:

V-n diagram for design study
Critical loading performance and final V-n graph calculation
Gust and maneuverability
Structural design study- Theory approach
Load estimation of wings
Wing spar and stringer calculation
Wing shear flow calculation
Load estimation of fuselage
Fuselage shear flow calculations
Design of miscellaneous members
Detailed structural
Design and manufacture the structure (use composite material)
Complete the documentation

Text Books:

M.G. Megson, “Aircraft Structures for Engineering Students”, Fifth edition, Butterworth‐ Heinemann, 2012.
H. Bruhn, “Analysis and Design of Flight Vehicles Structures”, Tri‐state off‐ set company, USA, 1985.
J. Peery and J.J. Azar, “Aircraft Structures”, 2nd edition, McGraw – Hill, N.Y., 1999.
Timoshenko and D.H. Young, “Elements of strength materials Vol. I and Vol. II"., T. Van Nostrand Co‐Inc Princeton‐N.J. 1990.

Reference Books:

K. Donaldson, "Analysis of Aircraft Structures ‐ An Introduction", Second edition, Cambridge University Press, 2012.
Howard D Curtis, ‘Fundamentals of Aircraft Structural Analysis’, WCB‐ McGraw Hill, 1997.
M. Rivello, “Theory and Analysis of Flight Structures”, McGraw Hill, 1993.

Source of reference; NSQF

Session Plan

Session 1

monocoque, semimonocoque, corrugated structure
Aircraft_structure
https://www.youtube.com/watch?v=aYB2h_tUfYM

Session 2

sandwich structure, reinforced and honeycomb structures
sandwich structure
https://www.youtube.com/watch?v=bdyjCAz4ofE
https://www.youtube.com/watch?v=aL8HQtpxQqg

Session 3

aerospace materials
aerospace materials
https://www.youtube.com/watch?v=RYuv64AJ9A8

Session 4

metallic and non metallic materials, use of aluminum alloy
Aluminum and Aluminum Alloys Davis

Session 5

titanium, stainless steel

Session 6

composite and ceramic materials use in aerospace industry
https://www.youtube.com/watch?v=ZgSWLFd9dOY
https://www.youtube.com/watch?v=is1BBilkyUM

Session 7

Basics of aircraft components and functions of parts
Aircraft_construction

Session 8

Construction concepts for wing
https://www.youtube.com/watch?v=60CmDTly8Dg
Wing

Session 9

control surfaces and tail plane.
tail plane

Session 10

Analysis of multi‐cell wing structures for bending, shear and torsional loads
bending an shear
https://www.youtube.com/watch?v=CaayhUu58Zk

Session 11

analysis of ribs, cut outs in wings, Method of successive approximation

Session 12

Construction concepts for fuselage
fuselage
https://www.youtube.com/watch?v=UM4SuFBYxnA

Session 13

Analysis of fuselage structures for bending, shear and torsional loads
bending an shear fuselage
https://www.youtube.com/watch?v=5hOqjd2tgJw

Session 14

Analysis of fuselage frames, cut outs in fuselages

Session 15

Types of spar construction

Session 16

diagonal tension concept, semi-diagonal tension concept
diagonal tension

Session 17

design of spar web: shear resistant

Session 18

design of spar web: diagonal tension and semi-diagonal tension web

Session 19

Analysis of parallel and tapered spar

Session 20

Types of aircraft fittings
aircraft fittings
https://www.youtube.com/watch?v=H_oIh7qxCbQ

Session 21

Wing to spar attachments, Single bolt fittings
https://www.youtube.com/watch?v=qbBhg8xISug

Session 22

Wing to spar attachments, Multi bolt fittings
https://www.youtube.com/watch?v=5QlQKuLvGNM

Session 23

Bolt group analysis
Bolt

Session 24

Shear, bending and tensile failures of bolts

Session 25

Analysis of lugs to normal and oblique loading
Shear tensile failures of bolts

Session 26

Riveted connections and strength of rivets
Riveted connections and strength
https://www.youtube.com/watch?v=XpfZrZUDY4I

Session 27

Loads on an aircraft
Aircraft Load
https://www.youtube.com/watch?v=Lrp5kxg4v-w

Session 28

Aircraft Maneuvering Loads
Load Maneuvering

Session 29

V-n diagram
https://www.youtube.com/watch?v=oqo7DEsI8CQ
v-n-diagrams-2

Session 30

Gust Load
https://www.youtube.com/watch?v=BqJO-7z4eRk

Case Studies

Course Materials

Session plan & materials

No materials published yet.

Aerospace structural Analysis

Syllabus

Course Name : Aerospace structural Analysis

Code(Credit) : CUTM1099(3-0-3)

Course Objectives

To provide the students an understanding on Aerospace Structures and Materials

To study the shear stresses in wing, fuselage, wing spar, attachments

To study velocity and load diagram for different condition

Learning Outcomes

Understand Aerospace Structures and Materials

Understand load paths and demonstrate the knowledge of structural behavior in fuselage and wing structures

Calculate the stresses in wing, fuselage, wing spar, attachments

Differentiate and analyse the types of aircraft fittings, bolt fittings, Riveted connections and their failures.

Estimate the load of aircraft at different condition

Able to complete structural design in project mode

Course Syllabus

Project- Students are expected to complete following

Perform structural calculations establish the structural requirements and constraints apprehend the applicable structural standards for an aircraft

Joint and fastener calculations, attachment lugs etc.

Perform fatigue life and crack growth analysis through selection of critical primary and secondary locations on structure

Carry out optimization on the finalized design concepts and make final layout.

Create composite canopy for aircraft

Steps:

V-n diagram for design study

Critical loading performance and final V-n graph calculation

Gust and maneuverability

Structural design study- Theory approach

Load estimation of wings

Wing spar and stringer calculation

Wing shear flow calculation

Load estimation of fuselage

Fuselage shear flow calculations

Design of miscellaneous members

Detailed structural

Design and manufacture the structure (use composite material)

Complete the documentation

Text Books:

M.G. Megson, “Aircraft Structures for Engineering Students”, Fifth edition, Butterworth‐ Heinemann, 2012.

H. Bruhn, “Analysis and Design of Flight Vehicles Structures”, Tri‐state off‐ set company, USA, 1985.

J. Peery and J.J. Azar, “Aircraft Structures”, 2nd edition, McGraw – Hill, N.Y., 1999.

Timoshenko and D.H. Young, “Elements of strength materials Vol. I and Vol. II"., T. Van Nostrand Co‐Inc Princeton‐N.J. 1990.

Reference Books:

K. Donaldson, "Analysis of Aircraft Structures ‐ An Introduction", Second edition, Cambridge University Press, 2012.

Howard D Curtis, ‘Fundamentals of Aircraft Structural Analysis’, WCB‐ McGraw Hill, 1997.

M. Rivello, “Theory and Analysis of Flight Structures”, McGraw Hill, 1993.

Session Plan

Session 1

Session 2

Session 3

Session 4

Session 5

Session 6

Session 7

Session 8

Session 9

Session 10

Session 11

Session 12

Session 13

Session 14

Session 15

Session 16

Session 17

Session 18

Session 19

Session 20

Session 21

Session 22

Session 23

Session 24

Session 25

Session 26

Session 27

Session 28

Session 29

Session 30

Case Studies

Case Studies

Course Materials

Session plan & materials