考虑工程约束的发动机悬置支架拓扑优化  

Topology Optimization of Engine Mount Bracket with Consideration of Engineering Constraints

作　　者：朱剑峰[1,2] 林逸[1] 施国标[1] 陈潇凯[1] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]泛亚汽车技术中心有限公司,上海201206

出　　处：《汽车工程》2014年第12期1508-1512,共5页Automotive Engineering

摘　　要：为了提高发动机悬置支架的结构性能和减轻质量,以发动机悬置在多工况下加权柔度最小化和频率最大化为目标,并考虑了工程约束条件,对支架结构进行多目标拓扑优化。根据优化结果设计出的新发动机悬置满足强度、耐久性和模态频率的要求,降低了开发风险,减少了实物试验,节约了开发成本。In order to enhance the structural performance of engine mount bracket and reduce its weight,a multi-objective topology optimization on bracket structure is conducted with minimizing its weighted compliance and maximizing its natural frequency under different working conditions as objectives and considering engineering constraints. The new engine mount designed based on optimization results meets the requirements on strength,durability and modal frequency,lowers development risk,reduce real component tests and cut down development cost.

关 键 词：发动机悬置 拓扑优化 工程约束 

分 类 号：U464.13[机械工程—车辆工程]