深孔加工中再生型颤振的分析和仿真

摘要

This article has carried on the analysis to the regenerative chatter occurs in deep hole machining, and get the limited cutting width of the non occurrence of flutter through the establishment of the dynamic model. This article has simulated the chatter vibration system under different cutting width by MATLAB/Simulink. The simulation results show that when the cutting width is less than the limit of cutting width,cut-ting system is in steady state. When the cutting width is greater than the limit of cutting width,the system is in the state of chatter. When the cutting width is equal to the limit of cutting width, the system is in the state between stability and flutter. The simulation results accord with theoretical analysis,and it has certain refer-ence significance for the chatter monitor and suppression in the future.%文章对深孔切削加工中出现的再生型颤振进行了分析，通过建立其动力学模型，得到了其不发生颤振的极限切削宽度。通过MATLAB/Simulink来对颤振系统在不同的切削宽度下的振动情况进行仿真。仿真结果表明，当切削宽度小于极限切削宽度时，系统处于稳定切削状态。当切削宽度大于极限切削宽度时，系统处于颤振切削状态。当切削宽度等于极限切削宽度时，系统处于稳定与颤振的临界切削状态。仿真结果与理论分析基本吻合，对于今后颤振的预测和抑制研究具有一定的参考意义。