整体式柔性机构的结构拓扑优化设计  

Structural and topological optimization approaches:designing monolithic compliant mechanisms

作　　者：陈义保[1] 罗震[2] 

机构地区：[1]烟台大学机电汽车工程学院,烟台山东264005 [2]华中科技大学机械科学与工程学院,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2006年第8期80-83,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家重点基础研究发展计划资助项目(2003CB716207);国家高技术研究发展计划资助项目(2003AA001031);国家自然科学基金资助项目(50465001)

摘　　要：基于变密度法和优化准则法,推导并建立了柔性机构的结构拓扑优化设计的设计变量迭代格式.以机构的机械增益为优化的目标函数,利用连续体的结构拓扑优化技术建立了的柔性机构设计的数学模型.通过人工弹簧模型和虚拟载荷法描述柔性机构设计的目标函数,采用伴随敏度分析法进行了敏度分析.以柔性夹钳作为设计实例,证明了所研究方法的有效性,用快速成型技术验证了柔性机构概念设计阶段的合理性.The updating scheme of design variables for topology optimization of monolithic compliant mechanism designs was derived by using variable density approach and optimality criteria method.Taking mechanical gain as the objective function of compliant mechamsms, tlae matnematmal moael for topological optimization designs was constructed. The objective function was described by artificial spring model and dummy load method and the sensitivity was analyzed by the adjoint sensitivity analysis method. The proposed methodologies are demonstrated through an example of a compliant gripper mechanism, and the prototype is manufactured to prove the validation of the conceptual design.

关 键 词：柔性机构 结构优化 拓扑优化 优化准则法 敏度分析 

分 类 号：TH165[机械工程—机械制造及自动化]