能量法计算机床主轴系统的模态参数

Calculating modal parameters of machine tool spindle unit with energy method

从主轴系统动刚度近似表达式出发，采用子结构能量方式，对具体车床主轴系统的模态参数进行了计算，并编制了通用的计算机程序，为主轴系统的动态优化设计打下了良好的基础。

Starting from the approximate expression of dynamic stiffness of machine tool spindle unit, applying sub--structure of energy method, the modal parameters for a concrete lathe spindle unit is calculated, and a program for current computers is worked out, thus a sound foundation for dynamically optimal design of spindle unit is established.