Optimal Design Methodology of Automobiles Suspension Topological Configuration with Multi-joints Parsing

doi:10.3901/JME.260441

Abstract

Abstract: Suspension is critical for vehicle ride comfort and operational stability. The current suspension design method cannot realize the topological configuration optimization of multi-joints(spherical, revolute and translational joints), and there are problems of unclear configuration and low convergence speed. Therefore, a topological design method of multi-joints parsing is proposed, the optimal design of topology and size is realized. Firstly, the suspension design space is discretized and the discrete nodes are constrained by the “three springs”. Then, the multi-spring rod model is established through the rod system between the discrete. Secondly, the quasi-static equilibrium equation is established to solve the state variable, with the goal of maximizing work transmittance efficiency and the kinematic characteristics such as wheel track, toe and camber as the constraints, the optimization model is established to realize the optimal design of topology and size. Finally, the identification algorithm is proposed to solve the problem of unclear configuration and low convergence speed. Many examples show that the proposed design method can not only realize the topology design in strict space, but also realize the innovative design of the new suspension configuration of multi-joints.

Key words: topological configuration design, vehicle suspension, suspension guide arm configuration, multi-joints parsing

CLC Number:

U463

HE Zhicheng, HE Jinglin, JIANG Chao, GAO Hui, XU Wenlin, LIU Yue. Optimal Design Methodology of Automobiles Suspension Topological Configuration with Multi-joints Parsing[J]. Journal of Mechanical Engineering, 2026, 62(8): 33-48.

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