高速立式加工中心动态特性分析及结构改进  

Dynamic Characteristic Analysis and Structure Improvement of High-speed Vertical Processing Center

作　　者：毛志云[1] 高东强[1] 张功学[1] 黎忠炎[1] 

机构地区：[1]陕西科技大学机电工程学院,西安710021

出　　处：《组合机床与自动化加工技术》2011年第1期86-89,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家"高档数控机床与基础制造装备"科技重大专项(2009ZX04001-014-02)

摘　　要：利用ANSYS Workbench软件对高速立式加工中心整机进行模态和谐响应分析,获得了感兴趣频段的固有频率。通过对整机各阶模态振型进行分析,找到了整机结构的薄弱环节,并据此对整机结构进行改进,改进后整机的动态性能明显要优于原整机,为进行机床结构的优化设计指出了改进的方向。The modal Analysis and harmonic response analysis of the high-speed vertical processing center are studied by ANSYS Workbench,and the order of natural frequencies we need are obtained.Through the analysis of the modal characteristics of this machine tools,its relative weaker parts are pointed.The structure of the machine tools was improved acording to the analysis results.The dynamic characteristics of the improved structure are apparently better than that of the original design.The improving suggestion for this machine tools is put forward accordingly.

关 键 词：模态分析 谐响应分析 动态特性 

分 类 号：TH16[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]