IJRME – Volume 1 Issue 2 Paper 3

“STRUCTURAL ANALYSIS OF CAR UNDER STATIC AND DYNAMIC CONDITION BY USING ANSYS SOFTWARE”

Author’s Name :  Rohit Walia

Volume 01 Issue 02  Year 2014  ISSN No:  2349-3860  Page no: 11-13

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Abstract:

This paper presents the static and dynamic behavior of car chassis using ANSYS. The application of static & dynamic technique together with Finite Element Tools had been utilized in order to verify the simulation and analysis of the chassis. Results were used in conjunction with the finite element to predict the dynamic characteristic of car chassis such as the natural frequency and corresponding mode shape. Damage can occur if the car chassis is excited at resonance during operation. Therefore, based on the result gained from the finite element analysis, further enhancement of the current chassis had been done through the chassis FE model in order to improve its stiffness as well as reduce the vibration level. In Finite Element Analysis, the model of car chassis was created using 10 nodes tetrahedral elements. Normal mode analysis was performed and free-free boundary condition was applied in the analysis to determine the first seven natural frequencies and mode shapes. It was noticed that the first seven natural frequencies of the car chassis were below 100 Hz and vary from 47.423 to 79.531 Hz. This problem was resolved by carrying out the Finite Element Model updating, by adding sub-structure.

References:

  1. Dave Anderson and Grey Schede. Development of a Multi- Body Dynamic Modal of a Tractor.Semi trailer for Ride Quality Prediction. International Truck and Engine Corp. 2001.
  2. I.M. Ibrahim, D.A.Crolla and D.C. Barton. Effect Of Frame Flexibility On The Ride Vibration  Of Trucks. Department of Mechanical Engineering, University of Leeds LS2 9JT, U.K. August 1994.
  3. Pomulo Rossi Pinto Filho. Automotive Frame Optimization. Universidade Federal de Uberlandia. November 2003.
  4. [email protected], Izzudin and Abd. Rahman, Roslan (2006). Application of Dynamic Correlation Technique and Model Updating on Truck Chassis. 1st Regional Conference on Vehicle Engineering & Technology, July 2006.
  5. Lonny L. Thomson, Jon K. Lampert and E. Harry Law. Design of a Twist Fixture to measure the Torsional Stiffness of a Winston Cup Chassis. Department of Mechanical Engineering, Clemson Univ.1998.
  6. Murali M.R. Krisna. Chassis Cross-Member Design Using Shape Optimization. International Congress and Exposition Detroit, Michigan. February 23-26,1998.