摘要
在COSMOS/Works环境下创建了数控机床主轴箱有限元模型,并对其进行模态分析,获得了关心的自振频率及振型。在此基础上,定义多个结构尺寸作为设计变量,对主轴箱动态特性进行优化,结果使其基频得以明显提高,有效增强了箱体的抗振性能。计算得出了一组具有良好动态特性的结构参数,为主轴箱的结构设计提供了重要参考。
The finite element model of NC Machine spindle box is set up by COSMOS/Works, and modal analysis of the spindle box is done, then the natural frequencies and the vibration modes are calculated. On that basis, the dynamic characteristic of spindle box is optimized through defining multi structure sizes as design variable. Fundamental frequency of the spindle box is increased obviously after optimizing; as a result, damping property of it is enhanced effectively. A group of structural parameters with fine dynamic characteristic are calculated, which offer significant referents to structure design of spindle box.
出处
《机械传动》
CSCD
北大核心
2012年第11期77-79,共3页
Journal of Mechanical Transmission
基金
西京学院校级科研基金(XJ120103)
关键词
主轴箱
动态特性
有限元
基频
优化
COSMOS/Works
Spindle box Dynamic characteristic Finite element Fundamental frequency Optimizing COSMOS/Works
