摘要
在复杂薄壁件加工过程中,合理的定位点配置可以有效降低加工变形。为了解决薄壁件定位支撑结构的优化设计问题,文章建立了以刚度为目标函数,体积为约束函数的拓扑优化模型。模型将夹具与工件看作同一实体,采取多组件多约束的拓扑优化方法,利用大型商用软件Ansys Work-bench中的拓扑优化设计模块对零件的定位支撑结构进行拓扑优化设计,并对不同支撑条件的变形仿真结果进行了比较,证明了拓扑优化方法在夹具设计中应用的可行性。
In the process of complex thin-walled parts, proper locating point configuration can reduce the distortion. In order to solve the positioning problem of the support structure for the thin-walled parts＇ op- timization design, the article established a topology optimization model that takes stiffness as the objec- tive function, and volume as the constraints function. In the model the fixture and the workpiece are taken as an entity, the multi-component and multi-constrained topology optimization method is used using the shape optimization module in the commercial FEM software Ansys Workbench to topologically opti- mize the support structure. In addition compared the simulation deformation result with different support- ing conditions and proved the feasibility of applying topological optimization into fixture design.
出处
《组合机床与自动化加工技术》
北大核心
2012年第7期99-102,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
组建上海工程技术研究中心科研计划项目(10dz2250300)
