主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
Automobile Applied Technology

Automobile Applied Technology ›› 2026, Vol. 51 ›› Issue (6): 22-25,30.DOI: 10.16638/j.cnki.1671-7988.2026.006.004

• Design and Research • Previous Articles    

Buckling Analysis and Optimization of the Front Suspension Lower Control Arm Under Abuse Conditions

WANG Hui1,2,3 , JI Hao1,2,3 , CAO Ning1 , WEI Mingchang4   

  1. 1.SAIC-GM-Wuling Automobile Company Limited; 2.Guangxi Laboratory of New Energy Automobile; 3.Guangxi Key Laboratory of Automotive New Four Modernizations; 4.AISN AUTO R&D Company Limited
  • Published:2026-03-24
  • Contact: WANG Hui

基于误用工况的前悬架下控制臂屈曲分析与优化

汪辉 1,2,3，纪浩 1,2,3，曹宁 1，韦明昌 4   

  1. 1.上汽通用五菱汽车股份有限公司；2.广西新能源汽车实验室；3.广西汽车新四化重点实验室； 4.湖南湖大艾盛汽车技术开发有限公司
  • 通讯作者: 汪辉
  • 作者简介:汪辉（1988－），男，高级工程师，研究方向为整车动力底盘及架构开发
  • 基金资助:
    广西科技重大专项计划（桂科 AA23062056）；广西重大专项计划“新能源汽车用户大数据场景构建技术研 究与应用平台建设”（桂科 AA23062084）

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Abstract: To address bending fracture issues in the lower control arm under misused conditions, this study employ a virtual platform generator (VPG) to extract load data and performed nonlinear buckling analysis using finite element methods. Experimental results demonstrates that the maximum combined error between VPG-derived and measured loads is 8.8%. The lateral overbuckling limit (11 839 N) under misused conditions caused bending fracture. Through structural optimization to enhance buckling resistance, the design passes both bench tests and road tests, providing innovative approaches for designing lower control arms under misused conditions.

Key words: misused conditions; lower control arm; buckling; finite element analysis

摘要： 为解决下控制臂在误用工况弯曲开裂问题，文章通过虚拟试验场（VPG）提取误用工 况的下控制臂载荷，并利用有限元方法对下控制臂进行非线性屈曲分析。试验结果表明，VPG 提取载荷与实测载荷的合力最大误差为 8.8%；下控制臂在误用工况下的侧向受载超屈曲极限 （11 839 N）导致弯曲断裂。研究通过下控制臂结构优化提升屈曲性能，最终通过了台架和整 车路试的验证，为下控制臂误用工况设计提供新思路。

关键词: 误用工况；下控制臂；屈曲；有限元分析