By applying finite element method and optimal design theory this paper carried out an optimal design model of the machinetool shaft, chosen optimal methods and given a living example.
运用有限元法和优化设计理论，建立机床主轴结构设计的优化数学模型，选择优化方法，进行了实例计算。
2
At high precise NC Machinetool, grating can be adopted as sensing element of position detection equipment.
在高精度的数控机床上，可以使用光栅作为位置检测装置的敏感元件。
3
The key to establish a precise dynamic model with Finite Element Method is the simulation of the dynamic characteristics of the joint face in the machinetool.