摘要
对Φ４００普通车床的刀架系统进行了动态特性研究，以主要模态柔度及各阶模态能量分布为判据，进行了动力修改设计，获得较高的静、动态特性。
The dynamic characteristics of posts system of Φ400 engine lathe is studied.On the basis of principal modal camplience and every degree modal ener-gy distribution,the present structure of tool posts system is modified.Better static and dynamic characteristics are obtained.
关键词
车床
刀架
模态分析
动态性能
lathes
tool posts,dynamic analysis of mechanism
modal analysis
