摘要
基于计及滚珠直线导轨副滑块裙部变形的刚度模型,提出了一种滚珠直线导轨副的有限元模态分析方法,建立了一种滚珠直线导轨副的三维有限元模型并进行了有限元模态分析,求得了滚珠直线导轨副的模态频率及模态振型。利用实验模态分析技术,对滚珠直线导轨副进行了模态测试,测得了滚珠直线导轨副的模态。测试结果验证了有限元建模与分析方法的有效性。
Based on the rigidity model of a linear ball guide incorporating the flexibility of the carriage,a modal analysis method was proposed by using finite element analysis. A three dimensional finite element model of a linear ball guide was established. The finite element modal analysis was conducted and the modal frequencies and vibration modes were presented. The modal testing experiment was conducted on the type of linear ball guide. For the occurrence of the modes, the finite element analysis results based on the presented method almost match with the experimental ones.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2012年第2期150-154,共5页
China Mechanical Engineering
基金
数字制造装备与技术国家重点实验室资助项目(2010Z014)
关键词
滚珠直线导轨副
接触刚度
有限元分析
模态分析
linear ball guide
contact rigidity
finite element analysis
modal analysis
