噪声与振动控制

›› 2012, Vol. 32 ›› Issue (3): 125-128.DOI: 10.3969/j.issn.1006-1355.2012.03.029

• 3.运载工具振动与噪声 • 上一篇    下一篇

汽车悬架下控制臂的有限元分析

何小静,上官文斌

  

  1. （ 华南理工大学 机械与汽车工程学院， 广州 510641 ）
  • 收稿日期:2011-07-13 修回日期:2011-09-13 出版日期:2012-06-18 发布日期:2012-06-18
  • 通讯作者: 何小静

Finite Element Analysis of the Control Arm beneath Vehicle’s Suspension

HE Xiaojing,SHANGGUAN Wen-bin   

  1. ( School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510641， China )
  • Received:2011-07-13 Revised:2011-09-13 Online:2012-06-18 Published:2012-06-18
  • Contact: HE Xiaojing

摘要： 以某一具体的悬架下控制臂为研究对象，建立悬架控制臂有限元仿真模型。在有限元静力分析过程中，引入惯性释放原理，计算不平衡外力作用下结构的运动(加速度)，通过惯性力构造一个平衡的力系，从而消除约束点反力对控制臂结构强度计算造成的应力集中影响。分析汽车悬架控制臂的静刚度特性，对悬架控制臂分别在拉、压工况下进行拉溃力和压溃力有限元分析。分析结果表明，此悬架控制臂满足静刚度特性和强度特性设计要求。

关键词: 振动与波, 悬架, 下控制臂, 惯性释放, 有限元分析

Abstract: The finite element model of lower control arm beneath vehicle’s suspension was established. In static analysis of the model, inertia relief principle was introduced to eliminate the stress concentration effect of the constraint reaction force on the structural strength of the control arm. In this method, the acceleration due to the unbalanced loads was calculated. The static stiffness properties of the control arm were analyzed. The breaking load and buckling load of the suspension control arm under the conditions of tension and compression were calculated respectively. The results demonstrate that the static stiffness and strength characteristics of the control arm can meet the design requirements.

Key words: vibration and wave, suspension, lower control arm, inertia relief, FEA

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