主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2025, Vol. 50 ›› Issue (9): 52-55.DOI: 10.16638/j.cnki.1671-7988.2025.009.010

• 设计研究 • 上一篇    

基于多体动力学的悬架稳定杆刚度性能分析

刘钢   

  1. 海南科技职业大学
  • 发布日期:2025-05-13
  • 通讯作者: 刘钢
  • 作者简介:刘钢（1982－），男，硕士，教授，研究方向为整车性能设计开发
  • 基金资助:
    海南科技职业大学科研重点项目——基于有限体积法的 ROS 赛车尾翼动态优化与气动特性研究（HKKY 2024-ZD-02）

Stiffness Performance Analysis of Suspension Stabilizer Bar Based on Multi-body Dynamics

LIU Gang   

  1. Hainan Vocational University of Science and Technology
  • Published:2025-05-13
  • Contact: LIU Gang

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摘要： 通过稳定杆简化模型对悬架稳定杆的刚度特性进行对比研究，建立了稳定杆的简化结 构特征参数并计算了稳定杆的刚度。通过理论计算和多体动力学仿真结果的对比分析，验证 了稳定杆直径变化对刚度的影响，得出其刚度比为直径比值的四次方。进一步基于多体动力 学对悬架稳定杆进行仿真建模，并考虑稳定杆固定橡胶衬套的刚度，分析稳定杆刚度随载荷 变化的对比数据。研究结果表明，乘用车在常用工况下，根据稳定杆直径简化推导计算得到 的刚度值与动力学仿真结果的平均偏差为 1.41%，通过直径简化计算可以在悬架初步选型和 快速调校时快速预评估，提高底盘调校效率。

关键词: 稳定杆；刚度；悬架系统；动力学；调校方法

Abstract: The stiffness characteristics of the suspension stabilizer bar are compared by using the simplified model of the stabilizer bar. The simplified structural characteristic parameters of the stabilizer bar are established and the stiffness of the stabilizer bar is calculated. Through the comparative analysis of theoretical calculation and multi-body dynamics simulation results, the influence of the change of stabilizer rod diameter on the stiffness is verified, and the stiffness ratio is obtained as the fourth power of diameter ratio. Based on the multi-body dynamics, the simulation model of the suspension stabilizer bar is carried out, and the stiffness of the fixed rubber bushing of the stabilizer bar is considered. The results show that under common working conditions, the average deviation between the stiffness value calculated based on the simplified derivation of the stabilizer rod diameter and the dynamic simulation results is 1.41%. The simplified diameter calculation can be used to quickly pre-evaluate the preliminary selection and rapid adjustment of suspension, and improve the efficiency of chassis adjustment.

Key words: stabilizer bar; stiffness; suspension system; dynamics; adjustment method