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Analytical Method to Analyze the Tolerance Effect on the Vehicle Ride Comfort

차량 승차감에 미치는 공차의 영향 분석을 위한 해석적 방법

  • 김범석 (한양대학교 대학원 기계공학과) ;
  • 유홍희 (한양대학교 기계공학부)
  • Published : 2008.07.01

Abstract

Analytical method to analyze the tolerance effect on the vehicle ride comfort is suggested in this paper. Ride comfort is one of the most important performance indices which decide the vehicle design quality. In general, the ride comfort is affected by the variations of parameters of a vehicle model. Therefore, the effects of the parameters on the ride comfort need to be evaluated statistically based on the whole-body vibration of the vehicle. In this paper, weighted RMS values of the acceleration PSD of a seat position are used to define the ride comfort. The equations of motion and the sensitivity equations are derived based on a 5-DOF vehicle model. By employing the sensitivity information of the acceleration at the seat position, the tolerance effect on the vehicle ride comfort could be effectively analyzed.

Keywords

Tolerance Analysis;Sensitivity;Ride Comfort;Weighted RMS;Vehicle Model;Whole-Body Vibration

References

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