한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제18권12호
  • /
  • Pages.1217-1223
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  • 2008
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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설계변수의 산포를 고려한 차량 승차감의 강건최적설계

Robust Design Optimization of the Vehicle Ride Comfort Considering Variation of the Design Parameters

  • 송필곤 (한양대학교 대학원 기계공학과) ;
  • ;
  • 유홍희 (한양대학교 대학원 기계공학부)
  • 발행 : 2008.12.20
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초록

Vehicle vibration mostly originates from the road excitation and causes discomfort, fatigue and even injury to a driver. Vehicle ride comfort is one of the most important performance indices to achieve a high-quality vehicle design. Since design parameter variations inevitably result in the vehicle ride comfort variance, the variance characteristics should be analyzed in the early design stage of the vehicle. The vehicle ride comfort is often defined by an index which employs a weighted RMS value of the acceleration PSD of a seat position. The design solution is obtained through two steps in this study. An optimization problem to obtain a minimum ride comfort index is solved first. Then another optimization problem to obtain minimum variance of the ride comfort index is solved. For the optimization problems, the equations of motion and the sensitivity equations are derived basing on a 5-DOF vehicle model. The numerical results show that an optimal solution for the minimum ride comfort is not necessarily same as that of the minimum variance of the ride comfort.

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참고문헌

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피인용 문헌

  1. Application of Sensitivity Analysis to Vehicle Handling with Equivalent Cornering Stiffness vol.13, pp.4, 2012, https://doi.org/10.5762/KAIS.2012.13.4.1434