Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
권호 표지

Fatigue Analysis of Vehicle Chassis Component Considering Resonance Frequency

공진 주파수를 고려한 차량 섀시 부품의 피로해석

  • 이상범 (국민대학교 자동차공학전문대학원) ;
  • 임홍재 (국민대학교 자동차공학전문대학원)
  • Published : 2004.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

The purpose of this raper is to assess the benefits of frequency domain fatigue analysis and compare it with more conventional time domain techniques. The multi-body dynamic analysis, FE analysis and fatigue life prediction technique are applied for the frequency domain fatigue analysis. To obtain the dynamic load history used in the frequency domain fatigue analysis, the computer simulations running over typical road Profiles are carried out by utilizing vehicle dynamic model. The fatigue life estimation for the rear suspension system of small-sized passenger car is performed by using resonance durability analysis technique, and the estimation results are compared with the conventional quasi-static durability analysis results. For the pothole simulation, the percent changes, of the fatigue life between the two durability analysis techniques don't exceed 10%. But for the Belgian road simulation because of the resonance effect, the fatigue life using the resonance durability analysis technique are much smaller estimated than the quasi-static durability analysis results.

Keywords

References

  1. Majcher, J. S., Michaleson, R. D., and Solomon, A. R., 1976, 'Analysis of Vehicle Suspensions with Static and Dynamic Computer Simulations,' SAE Paper, No. 76183
  2. Landgraf, R. W., and Conle, F. A., 1989, 'Vehicle Durability Analysis,' Concurrent Engineering of Mechanical Systems, The University of Iowa, Vol. 1, pp. 239-259
  3. Choi, G. S., Min, H. K., and Paik, S. H., 2000, 'Dynamic Stress of Vehicle using Virtual Proving Ground Approach,' SAE Paper No. 2000-01-0121, pp. 1-7
  4. Steiner, W., Stinwender, G., and Unger, B., 2001, 'Fatigue Simulation of Power Train Components during the Design Process,' International Journal of Automotive Technology, Vol. 2, No.1, pp. 9-16
  5. Yim, H. J., Haug, E. J., and Dopker, B., 1990, 'Methods for Accurate Stress-Time History Computation,' Concurrent Engineering of Mechanical Systems, The University of Iowa, Vol. 2, pp. 117-134
  6. Kuo, E. Y., and Kelkar, S. G., 1995, 'Vehicle Body Structure Durability Analysis,' SAE Paper, No. 951096, pp. 135-150
  7. Dirlik, T., 1985, Application of Computers to Fatigue Analysis, Ph.D. Thesis, University of Warwick, UK
  8. SAE Fatigue Design and Evaluation Technical Committee, 1988, Fatigue Design Handbook, Society of Automotive Engineers, pp. 120-122
  9. Bannantine, J. A., Comer, J. J., and Handrock, J. L., 1987, Fundamentals of Metal Fatigue Analysis, Prentice Hall
  10. Kang, S. J., and Yoo, Y. D., 1999, 'A study on the Vehicle Fatigue Analysis using Stress PSD,' Transactions of the Korean Society of Automotive Engineers, Vol. 7, No.2, pp. 424-430
  11. Bishop, N. W. M., and Sherratt, F., 1990, 'A Theoretical Solution for the Estimation of Rainflow Ranges from Power Spectral Density Data,' Fatigue Fract. Engng Mater. Struct., Vol. 13, No.4, pp. 311- 326 https://doi.org/10.1111/j.1460-2695.1990.tb00604.x
  12. Bishop, N. W. M., Lack, L. W., Li, T., and Kerr, S., 1995, 'Analytical Fatigue Life Assessment of Vibration Induced Fatigue Damage,' Proceedings of MSC World Users Conference, Universal City, Los Angeles
  13. MSC/Fatigue Quick Start Guide, 1999, The MSC. Software Co., pp. 247-302