Optimal design of high-speed vehicle suspension system based on parameter sensitivity stratification
·Optimization·Reliability·|更新时间:2026-03-16
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Optimal design of high-speed vehicle suspension system based on parameter sensitivity stratification
Journal of Mechanical StrengthVol. 48, Issue 3, Pages: 87-95(2026)
作者机构:
1.兰州交通大学 机电工程学院,兰州 730070
2.兰州交通大学 电子与信息工程学院,兰州 730070
作者简介:
WU Fu, E-mail: 1025721948@qq.com
基金信息:
National Natural Science Foundation of China(56062028);Industry Support Program Project of the Department of Education of Gansu Province(2021CYZC-11);Innovation Fund Project of the Department of Education of Gansu Province(2022A-036)
WU Fu,DU Zeyang,LI Zhongxue,et al. Optimal design of high-speed vehicle suspension system based on parameter sensitivity stratification[J]. Journal of Mechanical Strength,2026,48(3):87-95.
WU Fu,DU Zeyang,LI Zhongxue,et al. Optimal design of high-speed vehicle suspension system based on parameter sensitivity stratification[J]. Journal of Mechanical Strength,2026,48(3):87-95. DOI: 10.16579/j.issn.1001.9669.2026.03.010.
Optimal design of high-speed vehicle suspension system based on parameter sensitivity stratification
To address the issues of numerous parameters and time-consuming calculations in the optimization of high-speed vehicle suspension systems
a layered optimization design based on the parameter sensitivity stratification was proposed.
Methods
2
Firstly
a dynamic simulation model of a single high-speed vehicle was constructed and validated for pragmatic. The optimal Latin hypercube sampling method was utilized to evenly extract sample points for calculating dynamic responses in the model
and a surrogate model was employed to replace the time-consuming dynamic model in order to enhance optimization efficiency. Secondly
after determining the optimization variable through sensitivity analysis
the variable was stratified. For the two stratified variables
the nearest neighbor cultivation transplantation algorithm and the downhill simplex method were used to advance the optimization process. Finally
the optimization results were compared with the original solution and those obtained from the non-dominated sorting genetic algorithm Ⅱ(NSGA-Ⅱ).
Results
2
The results demonstrate that the optimization respectively reduces the nonlinear critical speed and derailment coefficient by 14.584% and 9.615%
surpassing the NSGA-Ⅱ in comprehensive optimization rate and reducing the design iterations
thereby improving the dynamic performance of high-speed vehicles and validating the feasibility of the optimization method.
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references
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