Dynamic Optimization of Multi-body Systems

다물체 시스템의 동적 최적화

  • 이종년 (동서대학교 정보시스템공학부)
  • Published : 2002.05.01

Abstract

This paper presents a systematic methodology and formulation for determining optimal strategies of multi-body dynamic systems, which is based on multi-body dynamics, design sensitivity, and optimization techniques, and is applicable to a wide variety of mechanical systems. The particular application discussed in this paper considers a vehicle model with four-wheel steeling capability, and the presented methodology determines an optimal steering angle ratio strategy for the vehicle. It is shown that such a strategy can improve the ride stability of the vehicle, during a variety of maneuvers, when compared against similar strategies obtained from linear and simplified vehicle models.

Keywords

References

  1. Sano, Y., Furukawa, Y., and Shiraishi, S., 'Four Wheel Steering with Rear Wheel Steer Angle Controlled as. a Function of Steering Wheel Angle,' SAE Paper No. 860625, 1990
  2. Nalecz, A. G. and Bindenuann, A. C., 'Analysis of the Dynamic Response of Four Wheel Steering Vehicles at High Speed,' Int. J. Vehicle Design, Vol. 9, No.2, pp. 179-202, 1988
  3. Bernard, J. E., Vanderploeg, M. J., and Sharman, J. E. 'Linear Analysis of a Vehicle with Four-Wheel Steering,' SAE paper No. 880644. 1988
  4. Gim, G. and Nikravesh, P. E. 'An Analytical Model of Pneumatic Tyres for Vehicle Dynamic Simulations: Part 1, Pure Slips,' Int. J. Vehicle Design, Vol. 11, No. 6, pp. 589-618, 1990
  5. J.N. Lee and P.E. Nikravesh, 'Steady-State Analysis of Multibosy Systems with Reference to Vehicle Dynamics,' Nonlinear Dynamics, Vol. 5 No. 2, pp. 181-192, 1994 https://doi.org/10.1007/BF00045675
  6. Nikravesh, P. E. and Gim, G., MBOSS(Multi-BOdy Sywtem Simulation) CAEL, Dept. of AME, Univ. of Arizona, 1992
  7. Nikravesh, P. E., Computer-Aided Analysis of Mechanical Systems, Prentice Hall, 1988
  8. 이종년, 박수홍, 1996, '다물체 시스템의 민감도 해석,' 한국정밀공학회 논문집, Vol. 14, No. 3, 50-56, 1996
  9. 정웅상, 한창수, '4WS 차량의 모델링 및 동적해석,' 한국자동차 공학회지 Vol. 3, No. 3, pp. 66-78, 1995