Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Simultaneous Optimization of Vehicle Suspensions for the Improvement of Frequency-weighted Riding Comfort

주파수 가중치를 고려한 승차감의 향상을 위한 차량 현가장치의 동시최적화

  • 김창동 (부산대학교 대학원, 정밀기계공학과) ;
  • 정의봉 (부산대학교 정밀기계공학과 및 기계기술 연구소)
  • Published : 1995.03.01
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Abstract

This paper presents the simultaneous optimal design of structure and LQG control systems for the improvement of riding comforts of active vehicle suspension systems. The performance index of riding comforts is extended to include frequency-weighted acceleration in the quadratic cost functional. Janeway human response curve with respect to acceleration is used to verify the usefulness of the presented method. The method is applied to a half model of an active vehicle suspension systems with elastic body moving on randomly profiled road. The values of stiffness of suspensions are used for the structural design variables. The conjugate gradient method is used for optimization. The simulated results of simultaneous optimization with frequency-weighted cost functional are compared with those without frequency- weighted cost functional.

Keywords

References

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