Flexibility Effects of Frame for Vehicle Dynamic Characteristics

차량 동특성에 대한 프레임의 유연성 효과

  • 이상범 (국민대학교 자동차공학 전문대학원)
  • Published : 2002.03.01

Abstract

Previous method of computer simulation to predict the dynamic response of a vehicle has been based on the assumption that vehicle structure is rigid. If the flexibility of the vehicle structure becomes too large to ignore, rigid body assumption will no longer give good estimation of the dynamic characteristics. Therefore, in order to predict more precise vehicle dynamic characteristics, flexible multi-body dynamic analysis of a vehicle is necessary. This paper investigates dynamic characteristics of vehicle systems with flexible frames numerically. Joint reaction forces, vertical accelerations, pitch accelerations are analyzed for the vehicle systems with various flexible frames using multi-body dynamic analysis code and finite element analysis code.

Keywords

References

  1. Journal of Mechanisms, Transmissions, and Automation in Design v.8 Dynamics of Flexible Mechanical Systems Using Vibration nad Static Correction Modes Yoo, W. S.;Hang, E. J.
  2. Proceedings of the 2nd Annual Symposium on Mechanical System Design in a Concurrent Engineering Environment Integrated Computational Durability Analysis Baek, W. K.;Stephens, R. I.
  3. KSME Journal v.10 no.2 An Integrated CAE System for Dynamic Stress and Fatigue Life Prediction of Mechanical Systems Yim. H. J.;Lee, S. B. https://doi.org/10.1007/BF02953655
  4. Fundamentals of Vehicle Dynamics Thomas, D. G.
  5. Ph. D. Thesis Computational Methods for Dynamic Stress Analysis of Mechanical Systems Yim, H. J.
  6. Rev.5.5 DADS User's Manual Computer Aided Design Software Inc.
  7. Ver5.4 ANSYS User's Guide ANSYS Inc.