轿车扭转梁悬架强度分析与疲劳寿命预测  

Intensity analysis of sedan torsion-beam suspension and fatigue life prediction

作　　者：豆力[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院

出　　处：《客车技术》2012年第5期12-15,共4页Bus Technology

摘　　要：为了分析某款轿车扭转梁悬架在通过不平路面、紧急制动、最小转向半径且不侧滑3种典型危险工况下是否会出现静力破坏现象，建立扭转梁悬架有限元模型，对该悬架的3种典型危险工况进行了力学分析，并基于Nastran对该悬架在3种典型危险工况下的强度进行了有限元分析。有限元分析结果表明该悬架可以满足结构强度要求。最后利用疲劳寿命分析软件MSC-Fatigue对该悬架进行了疲劳寿命预测。In order to analyse whether there is static failure under 3 kinds of typical dangerous working conditions for some sedan torsion-beam suspension pass through uneven road,emergency brake,minimum turning diameter and not sideslip,set up torsion-beam suspension finite element model,do dynamic analysis for the 3 kinds of typical working conditions of this suspension,and do finite element for the intensity in 3 kinds of typical dangerous working conditions of this suspension based on Nastran.Finite element result shows that this suspension can meet the requirement of structure intensity,finally do fatigue life prediction by using fatigue life analysis software MSC.Fatigue.

关 键 词：扭转梁 有限元 强度 疲劳寿命 

分 类 号：U661.43[交通运输工程—船舶及航道工程]