微切削测力平台的弹性体结构拓扑优化设计和模态实验研究  

Topology optimization design and experimental study on the elastic body structure of micro cutting force measuring platforms

作　　者：王明强[1] 纪飞飞 王国良[1] 刘志强[1] WANG Mingqiang;JI Feifei;WANG Guoliang;LIU Zhiqiang(School of Mechanical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China)

机构地区：[1]江苏科技大学机械工程学院,镇江212003

出　　处：《江苏科技大学学报（自然科学版）》2018年第1期62-66,共5页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金资助项目(51305174)

摘　　要：微切削测力仪是微切削加工过程中测量切削力的主要装置,其测力平台弹性体结构的设计直接影响着测量精度等各项性能.然而,传统经验设计方法存在结构响应滞后、结构参数灵敏度低等不足.为此,文中提出了在保证结构强度前提下,以应力集中和固有频率为目标函数的测力平台弹性体结构拓扑优化设计方案;并通过模态实验对设计方案进行可行性验证,从而获得测力平台弹性体的理想结构.A micro cutting test instrument is the main unit of cutting force measurements in micro cutting process,and its measuring force platform for the elastic structure design directly affects the measurement precision and performance.However,the method of traditional design based on experience could cause structural response lag and low sensitivity.Therefore,under the premise of ensuring the strength of the structure,this paper sets up the measuring force platform elastomer structure topology optimization design scheme based on the stress concentration and the inherent frequency of the objective function.In addition,in order to obtain the ideal structure of force platform elastic body measurement,this paper verifies the feasibility of the design scheme by modal experiment

关 键 词：拓扑优化 应力集中 固有频率 模态实验 

分 类 号：TH122[机械工程—机械设计及理论]