摘要
为满足精密定位和微纳制造领域对全柔性并联机构构型设计的需求,基于三平移并联机构原型,采用多目标拓扑优化理论,得到了一种结构配置较佳的新型全柔性并联机构。首先,基于单目标的柔度优化模型和固有频率优化模型,运用线性加权法建立了机构的多目标拓扑优化模型。然后,基于HyperWorks/OptiStruct软件和优化准则算法对机构进行拓扑优化设计,得到了拓扑优化后的新型全柔性并联机构。最后,通过HyperMesh软件对拓扑优化前后的机构进行静力学分析和模态分析,从而验证了多目标拓扑优化设计的有效性。
The configuration design of fuUy compliant parallel mechanism can＇t meet the demand of precision positioning and micro/nano manufacturing, a new type of fully compliant parallel mechanism with better structure was designed based on the mechanism prototype and multi-objective topology optimization theory. Firstly, based on single target flexibility optimization and the single target natural frequency optimization model, the multi-objective topology optimization model of the mechanism was established by using the linear weighting method. Secondly, a new type of fully flexible parallel mechanism is presented by adopting the HyperWorks/OptiStruct software and the optimization criterion algorithm. Finally, the static analysis and modal analysis was carried out by using HyperMesh software. Therefore, the effectiveness of the multi-objective topology optimization method is verified.
出处
《机械设计与制造》
北大核心
2017年第9期193-196,共4页
Machinery Design & Manufacture
基金
重庆市教委教育教学研究项目(152060)
关键词
全柔性并联机构
线性加权法
多目标拓扑优化
静力学分析
模态分析
Fully Compliant Parallel Mechanism
Linear Weighting Method
Multi-Objective Topology Optimization
Static Analysis
Modal Analysis
