立式加工中心工作台系统的动态特性分析及结构优化  

Dynamic Analysis and Structure Optimization of Vertical Machining Center Worktable System

作　　者：杨飞[1] 高东强[1] 闫媛媛[1] 张菲[1] 

机构地区：[1]陕西科技大学机电工程学院,陕西西安710021

出　　处：《机械设计与制造》2013年第11期235-237,240,共4页Machinery Design & Manufacture

基　　金：国家科技重大专项资助(2009ZX04001-014-02)

摘　　要：利用SolidWorks软件建立了DVG850高速立式加工中心工作台系统的装配模型,运用ANSYS Workbench对工作台系统进行了模态分析,得到了工作台系统的前12阶固有频率及振型;通过对各阶模态的研究和分析,发现工作台系统的低频率段模态分布过于密集,容易引起共振现象,并对工作台系统的结构进行了改进,优化结果表明工作台系统各阶固有频率均有显著提高,并且高频率段模态分布明显增多;另外,对改进的工作台系统进行了谐响应分析,分析结果与模态分析一致。It establishes the assembly model of DVG850 high-speed vertical machining center worktable system using Solid Works software,and modal analysis of work system is carried out with ANSYS Workbench,obtaining front 12 order natural frequency and vibration mode of the worktable systemfinds that the distribution of low frequency ranges modal is denseness excessively by means of researching and analyzing for each order modal,arousing resonance phenomenon easily; and optimizes the structure of the work system.The optimization results show that natural frequency of each order is improved significantly to work system,and the distribution of high frequency ranges modal increases obviously.Besides,harmonic response analysis of improved worktable system is carried out,the results of the analysis coincide with the modal analysis.

关 键 词：工作台系统 动态分析 ANSYS WORKBENCH 共振 结构优化 

分 类 号：TH16[机械工程—机械制造及自动化] TG659[金属学及工艺—金属切削加工及机床]