Design and building of the prototype IDRApegasus
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Transcript of Design and building of the prototype IDRApegasus
![Page 1: Design and building of the prototype IDRApegasus](https://reader034.fdocuments.in/reader034/viewer/2022042700/5598baf81a28abb74a8b4764/html5/thumbnails/1.jpg)
Design and building of the prototype
IDRApegasus
Assistant Professor:
Ing. Massimiliana Carello (Mechanical and Aerodynamic Engineer Department)
Phd Student:
Dr. Andrea Airale (Mechanical and Aerodynamic Engineer Department)
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The Team
60 Students Best Training
Team spirit
Innovation
Technical Demonstrator
3 Working Vehicle
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The Shell Eco-marathon
200 Team
Rotterdam 2012
City circuit
5 tight corners
Energy saving
10 Laps
Max time: 39 minutes
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Sx
0,28 m2
Front wheels covered
Carbon fiber monocoque Weight
33 kg
Rear steering system
Cx
0,093
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Rear wheel
Design constraints
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Rear wheel
Topology Optimization
Objective : minimun weight
Constraint : max displacement
Parameters : cyclic geometry
Video
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Rear wheel
Analysis of results : how to use them
?
?
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Rear wheel
High stress
No fatigue problems
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Monocoque study
Monocoque
Front nose
Tail Cover
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Targets
Low weight
Strength and structural stiffness
Safety
Carbon Fiber: T800 + Dynanotex
Honeycomb
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Monocoque study
• Mesh 2D
• Tsai-Wu theory
• Study of the lamination of each surface
• Using honeycomb sandwich
• Layer orientation
• 5,5 kg
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Monocoque study
Max displacement 2,5 mm
First test : torsional stiffness
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Monocoque study
Max ply failure 0,59
First test : torsional stiffness
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Monocoque study
Second test : entrance
Max displacement 1,5 mm
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Monocoque study
Ply failure max 0,67
Second test : entrance
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Monocoque study
Third test : exit
Max displacement
1 mm
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Monocoque study
Third test : exit
Ply failure max 0,3
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Monocoque Manifacturing
Milling model Vacuum to eliminate air Hand lay up
Final mold
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Lamination
Setup mold Hand lay up carbon fiber Vacuum
Final body after extraction
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Assembling
Bonding structural
parts
Final structure
Structural mass : 6,5 kg
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Results
Vehicle characteristics
Strength
Mechanical reliability
Consumption : 337 km/kWh - 3023 km with the energy equivalent of one liter of gasoline
Light
Energy Efficient
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Research Group Activity
Innovative Electric and Hybrid Vehicles
Dr. Andrea Airale, Phd in Mechanical Engineering (Team Leader and co-funder H2politO)
Ing. Massimiliana Carello, Assistant Professor Mechanical Department of Politecnico di Torino (Faculty Advisor and co-founder H2politO)
Dr. Alessandro Ferraris, M.Sc. in Mechanical Engineering (Project Manager and Technical Coordinator H2politO)
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Research on Composites
CHEMICAL RESISTANCE
CRASH
FATIQUE
TRACTION
COMPRESSION
FLEXION
UV RESITANCE
TESTING
Static FEM Simulation
Dynamic FEM Simulation
VIRTUAL ANALYSIS
Model Validation
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Contacts
Ing. MASSIMILIANA CARELLO
Assistant Professor
Mobile: +39 333 6373119
Ing. ANDREA AIRALE
Phd Student
Mobile: +39 366 3441 224