机床变截面主轴柔度矩阵的计算方法

THE CALCULATING METMOD OF FLEXIBLE MATRIX OF VARYING CROSS-SECTION SPINDLES OF MACHINE TOOLS

本文提出了弯矩矩阵、弯矩影响系数的概念,用有限差分,从变形方程出发,推出了求机床变截面主轴柔度矩阵的新方法,解决了复杂烦琐的计算问题。计算精度随所取有限点数的增加可以无限逼近准确值.

In this article,the ideas of bending moment matrix and bending moment effect coefficient are developed.Using limited diffirence,starting from deformation equation,the auther brings forth a new method to find out the flexible matrix of varying cross-section spindles of macnine tools and hence the resolving of complicated and trivial calculation.The calculating accuracy may be approaching to the theoretical point infinitely by increasing the number of finite points.