基于有限元技术的某微型车转向支架拓扑优化的研究  

A Research On Topology Optimization of Steering Bracket Based on Finite Element

作　　者：杨良勇[1] 成传胜[2] 

机构地区：[1]四川工程职业技术学院机电系,四川德阳618000 [2]广西工学院汽车工程系,广西柳州545006

出　　处：《组合机床与自动化加工技术》2011年第9期88-91,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：广西千亿元产业重大科技攻关工程项目(桂科攻1114002-28)

摘　　要：针对某微型车转向支架在道路试验中损坏的现象,应用有限元ABAQUS软件进行强度分析,根据得到的应力云图和位移云图,找出了破坏的位置。根据分析结果,利用Optistruct优化工具的连续体结构拓扑优化技术进行优化设计。通过对优化前后的支架应力对比,优化后最大应力小于屈服应力。结合台架试验和疲劳寿命分析,优化后的支架满足性能要求,并已成功应用到该车型的生产中。According to a steering bracket for a minivan was damaged in road test, the strength analysis was done by ABAQUS software, and the stress contour and displacement contour were get, the damaged location was found. Combining the analysis results then based on these data a finite element analysis and a corresponding continuum structure topology optimization on steering bracket are performed. Contrasting the stress of bracket before and after optimization, the maximum stress is smaller than yield stress. Final- ly, the rig test and fatigue life prediction are carried out to validate the effectiveness, and the optimized bracket met the performance requirements, and it has being successfully applied to model＇ s production.

关 键 词：转向支架 ABAQUS Optistruct 拓扑优化 

分 类 号：TH16[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]