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本文应用再生谱计算技术分析了立轴平磨系统中的颤振频率、颤振增长率和特征根在复平面的分布情况,并应用该技术探讨了机床工艺参数和模态参数变化对系统稳定性的影响效果。应用再生谱可非常简便直观地确定机床系统的敏感模态,并能对机床薄弱模态的修改效果给出一个定量的评价。
In this paper, the chatter frequency, the growth rate of flutter and the distribution of eigenvalues in the complex plane of the vertical grinding system are analyzed by using the regenerative spectrum calculation technique. The application of this technique to the variation of machine tool parameters and modal parameters on the system stability Effect of the effect. The application of the regeneration spectrum can be very simple and intuitive to determine the sensitive mode of the machine tool system, and can give a quantitative evaluation of the modification effect of the weak mode of the machine tool.