超精密机械结构多目标拓扑优化设计  

Multi-objective Topological Optimization Design of Ultra-precision Mechanical Structure

作　　者：董立立[1] 朱煜[1] 牛小铁[2] 段广洪[1] 梁林泉[3] 

机构地区：[1]清华大学摩擦学国家重点实验室,北京100084 [2]北京工业职业技术学院,北京100042 [3]军械工程学院,石家庄050003

出　　处：《中国机械工程》2010年第7期761-765,共5页China Mechanical Engineering

基　　金：中国博士后科学基金资助项目(20090450387);国家科技支撑计划资助项目(2006BAF02A02);国家自然科学基金资助项目(60904054)

摘　　要：为满足超精密工件台结构极高的静动性能要求,提出了一种基于目标分层的多目标结构拓扑优化方法,并将其应用于超精密工件台关键件的结构优化设计中。基于ANSYS的仿真实验结果表明,多目标结构拓扑优化方法能够有效地提高结构的静动性能和设计效率,满足超精密结构极高的性能要求,为现代工程结构的多目标优化设计和改进提供了理论依据和方法。Based on the topological-optimization and layered decision--making theory of multi- objective optimization, a new methodology of multi-objective topological optimization design （MO-TOD） was proposed, and the method was applied in the optimization design of structures in the key unit of ultra-precision stages. The simulation results based on ANSYS prove that MOTOD significantly improve the static characteristics, dynamic characteristics and the design efficiency of multi- objective structure optimization design, satisfies the rigorous requirements in performance of ultraprecision structures, and provides a theoretical guide and method for modern structure design and improvement.

关 键 词：机械结构 拓扑优化 多目标优化 超精密工件台 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术] TH122[自动化与计算机技术—计算机科学与技术]