通用卧式铆接型架支撑台结构拓扑优化设计  

Topological Optimization Dedign for the Supporting Seat of a Universal Horizontal Riveted Grinder Grillage

作　　者：王明军[1] 谷文韬[1] 张永红[1] 雷少坤[1] 

机构地区：[1]西北工业大学机电学院,西安710072

出　　处：《机械科学与技术》2011年第12期2129-2134,共6页Mechanical Science and Technology for Aerospace Engineering

摘　　要：为了提高铆接精度,将基于变密度法的拓扑优化设计方法和有限元方法应用到某通用卧式铆接型架支撑台结构设计中。以原始支撑台结构在几种典型工况下静力学分析结果为基础,建立了支撑台拓扑优化模型。通过原始结构与各工况下优化后结构对比分析,指出了原始结构的不足,综合各工况优化结果设计出了新支撑台结构。基于有限元分析的对比优化前后的结果表明,新支撑台结构设计在不同工况下应力分布更趋均匀合理,整体刚度显著提高,位移偏移量减小,有利于提高铆接型架铆接精度。In order to improve the riveting precision, the finite element method and topological optimization design based on the variable density method were employed to the design of the supporting seat of a general horizontal riveted grinder grillage. The topological optimization model was set up based on the static analysis of the original de- signed supporting seat under various typical load cases. The topological optimization results of various load case were compared to the original designed supporting seat, and the result showed the deficiency of the original supporting seat, and a new model was built based on the topological optimization result. The analysis for the topological model though the finite element method shows that the stiffness was improved remarkably; the stress was more homogenize and the displacement of the guide way decreased after optimization.

关 键 词：拓扑优化 有限元法 静力分析 变密度法 多工况 

分 类 号：TU38[建筑科学—结构工程]