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在深入研究机床加工系统在变频激励力作用下振动响应规律的基础上，系统地论述了变速切削方法的减振原理。理论分析和试验结果表明，变速切削过程的振动响应是机床加工系统在变频激励力作用下的振动响应，它远比在恒频激励力作用下的振动响应小，这是变速切削方法之所以具有显著减振效果的最为本质的减振机理。
On the basis of deeply studying the vibration response law of machine tool processing system under the action of frequency-variable excitation force, the damping principle of variable-speed cutting method is systematically discussed. Theoretical analysis and experimental results show that the vibration response of variable speed cutting process is the vibration response of machine tool processing system under the action of variable frequency excitation force, which is far less than the vibration response under constant frequency excitation force. This is the reason why variable speed cutting method has The most significant damping effect of the vibration mechanism of the most essential.