Stress analysis of chassis ppt
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The document discusses the chassis design process which includes modeling, testing, and manufacturing. It provides details on: 1) The key functions of a vehicle chassis which are to provide mounting points for components, rigidity for handling, and occupant protection. 2) Common CAD and CAE software used for modeling and testing including CATIA, CREO, SOLIDWORKS, ANSYS, and LS-Dyna. 3) The CAE analysis process of pre-processing, solution, and post-processing to simulate and optimize chassis design virtually before manufacturing. 4) Manufacturing considerations for the chassis including details, fillets, holes, and the material selection of structural steel ST37.
Stress analysis of chassis ppt
- 1. Presented by Ameya P. Nijasure
- 3. Provide mounting points for the suspensions, the steering mechanism, the engine and gearbox, the final drive, the fuel tank and the seating for the occupants Provide rigidity for accurate handling; Protect the occupants against external impact.
- 4. • CATIA • CREO • SOLIDWORKS • NX-CAD, etc. CAD • ANSYS • NX - NSTRAN • LS dyna, etc. CAE
- 5. Pre Processing • material properties • modeling(CAD model) • connections in assembly • meshing (discritization) • loads and boundary conditions solution • creating element matrix equation • Assembly of element matrix equation post processing • results displacements stress temp distribution etc. • graphs/lists/tables • report generation etc.
- 6. Fillets, chamfers. Surface , volumes. Holes and other details Etc.
- 7. ADVANTAGES: LIMITATIONS: Saving time and money by reducing the number of prototypes required. Accepts new design concept . Improvements and modifications Commercial software packages and the required hardware. High investment cost Gives solutions or results, not remedies. Analyst must be proficient
- 9. MATERIAL OF THE CHASSIS IS AS PER IS: - 9345 STANDARD IS STRUCTURAL STEEL WITH ST37 Material Property Value Ultimate Tensile Strength 370 to 490 N/mm2 Modulus of elasticity 2.10 x 105 N / mm2 Poisson Ratio 0.29 Radius of Gyration R 114.30 m
- 10. Meshing is the process of breaking up the model into smaller pieces that can be solved by the software using advanced matrix math and then merged together to show the correct result for the whole.
- 11. BC • FIX SUPPORT • CYLINDRIVCAL SUPPORT • TEMP ETC. LOADS • FORCE • PRESSURE • CONVECTIONS ETC.