Browse > Article

Fatigue Analysis of Vehicle Chassis Component Considering Resonance Frequency  

Lee Sang Beom (국민대학교 자동차공학전문대학원)
Yim Hong Jae (국민대학교 자동차공학전문대학원)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.13, no.6, 2004 , pp. 94-101 More about this Journal
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
Belgian Road; Pothole; Quasi-Static Durability Analysis; Resonance Durability Analysis; Suspension System;
Citations & Related Records
연도 인용수 순위
  • Reference
1 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
2 SAE Fatigue Design and Evaluation Technical Committee, 1988, Fatigue Design Handbook, Society of Automotive Engineers, pp. 120-122
3 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
4 Dirlik, T., 1985, Application of Computers to Fatigue Analysis, Ph.D. Thesis, University of Warwick, UK
5 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
6 Bannantine, J. A., Comer, J. J., and Handrock, J. L., 1987, Fundamentals of Metal Fatigue Analysis, Prentice Hall
7 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
8 MSC/Fatigue Quick Start Guide, 1999, The MSC. Software Co., pp. 247-302
9 Kuo, E. Y., and Kelkar, S. G., 1995, 'Vehicle Body Structure Durability Analysis,' SAE Paper, No. 951096, pp. 135-150
10 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   DOI
11 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
12 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
13 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