机床切削系统稳定性极限的确定

Determination of Stability Limit of Machine Tool Cutting System

在研究切削过程从平稳到失稳的过程中振动加速度信号的概率密度函数变化的基础上，提出利用加速度信号的幅值分布在某一指定区间上概率值的变化来确定机床稳定性极限的方法。理论分析和试验结果表明上述方法准确可靠。

This paper presents a new method to determine the stability limit of machine tool chatter with the change of probability of the acceleration signal amplitude distributed in a certain range on the basis of the study of the change of the acceleration signal probability density function from the stable cutting to instable cutting.Theoretical analysis and experimental results show that the above method is accurate and reliable.