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Analysis and Optimization of Suspension Spring Stiffness for Improving Frequency Response Characteristics of the Vehicle

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  • Jin Gao
  • Peifeng Han
  • Yue Mei

Abstract

The work puts forward a way to research the kinematics of front double wishbone suspension by virtue of analytical method. A way of discussing the kinematics of rear five-link suspension is put forward by means of space coordinate transformation. The influence of suspension spring stiffness on the suspension characteristics is analyzed. The vehicle frequency response index is deduced in view of theoretical model of equivalent handling stability. The relationship between the vehicle frequency characteristic index and the frequency of the steering wheel angle under the variation of spring stiffness is gained, and the influence mechanism of spring stiffness on the vehicle frequency characteristics is explained. The suspension spring stiffness is the optimization variable, the vehicle frequency characteristic index is the optimization objective, and genetic algorithm is used to optimize the vehicle frequency characteristic.

Suggested Citation

  • Jin Gao & Peifeng Han & Yue Mei, 2022. "Analysis and Optimization of Suspension Spring Stiffness for Improving Frequency Response Characteristics of the Vehicle," Mathematical Problems in Engineering, Hindawi, vol. 2022, pages 1-19, May.
    • Handle: RePEc:hin:jnlmpe:9557483
    DOI: 10.1155/2022/9557483
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