International Journal of Automotive Technology

The Korean Society of Automotive Engineers (한국자동차공학회)
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ESTIMATION OF RIDE QUALITY OF A PASSENGER CAR WITH NONLINEAR SUSPENSION

  • Cho, S.J. (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Choi, Y.S. (School of Mechanical Engineering, Sungkyunkwan University)
  • Published : 2007.02.28
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Abstract

The nonlinear characteristics of a suspension is directly related to the ride quality of a passenger car. In this study, the nonlinear characteristics of a spring and a damper of a passenger car is analyzed by dynamic experiments using the MTS single-axial testing machine. Also, a mathematical nonlinear dynamic model for the suspension is devised to estimate the ride quality using the K factor. And the effect on the variation of the parameters of the suspension is examined. The results showed that the dynamic viscosity of the oil in a damper was the parameter that most influeced the ride quality of a passenger car for the ride quality of a passenger car.

Keywords

References

  1. Association of German Engineers (1987). Effect of mechanical vibrations on human being. VDI 2057, Association of German Engineers
  2. Billings, S. A. (1999). A direct approach to identification of nonlinear differential models from discrete data. Mechanical System and Signal Processing, 13, 739-755 https://doi.org/10.1006/mssp.1999.1230
  3. Chen, S., Billings, S. A. and Luo, W. (1989). Extended model set, global data and threshold model identification of severely non-linear system. Int. J. Control, 50, 1897-1923 https://doi.org/10.1080/00207178908953473
  4. Choi, Y. T., Choi, S. B. and Park, D. W., (2000). A sliding mode control of a full-car ER suspension via hardwarein- the-loop-simulation. J. Dynamic System, Measurement and Control, 122, 114-121 https://doi.org/10.1115/1.482435
  5. Choi, Y. S. and Park, J. P. (2003). Nonlinear parameter estimation of suspension system. Proc. Spring Conf., Korean Society for Noise and Vibration Engineering, 281-286
  6. Clark, D. C. (1962). A preliminary investigation into the dynamic behavior of vehicles and highways. SAE Trans., 70, 447-455
  7. International Organization for Standardization (1985). Evaluation of human exposure to whole-body vibration - part 1: General requirement, ISO 2631/1. Int. Organization for Standardization
  8. Kohr, R. H. (1961). Analysis and simulation of automobile ride. SAE Trans., 69, 110-119
  9. Rao, A. K. and Giannopoulos, F. (1981). Dynamic loads on suspension component using mechanism programs. SAE Paper No. 811307
  10. Reybrouck, K. (1994). A nonlinear parametric model of automotive shock absorber. SAE Paper No. 940869
  11. Shinozuka, M. and Deodatis, G. (1991). Simulation of stochastic processes by spectral representation. Applied Mechanics Revies, 44, 191-204 https://doi.org/10.1115/1.3119501
  12. Wallaschek, J. (1990). Dynamics of nonlinear automative shock absorber. Int. J. Nonlinear Mechanics, 25, 299-308 https://doi.org/10.1016/0020-7462(90)90059-I