边梁式车架的结构灵敏度分析及设计优化  

Structure sensitivity analysis and design optimization of fringe-beam frame

作　　者：李志祥[1] 王军杰[1] 吴德宏 

机构地区：[1]上海交通大学CIMS研究所,上海200240 [2]南京长安汽车有限公司,南京211200

出　　处：《机械设计与制造》2010年第3期48-50,共3页Machinery Design & Manufacture

摘　　要：建立了某边梁式车架的有限元模型,利用MSC.NASTRAN分析计算了其弯曲刚度和扭转刚度,并对车架弯曲刚度和扭转刚度进行相对于主要零件板厚的灵敏度分析,以此灵敏度分析结果为依据对车架进行轻量化设计。为该类型边梁式车架结构灵敏度分析和设计优化提供方法和理论依据。It a finite element analysis model is built for a kind of fringe-beam frame ,the bend and torsion rigidity of the frame is calculated using MSC.NASTRAN,then plate thickness sensitivity analysis of rigidity is performed for major parts. After that,the plate thickness of the frame is optimized according to the sensitivity result,farthest lighten the frame in condition of keeping its rigidity performance. The paper provides approach and theory reference for structure sensitivity analysis and design optimization of the kind of frame.

关 键 词：有限元法 车架 灵敏度分析 设计优化 

分 类 号：TH12[机械工程—机械设计及理论] U463.32[机械工程—车辆工程]