切削加工振动的分析和防治

切削加工振动主要有自激振动和受迫振动,它们分别与机床系统本身的特性、内部干扰力和外部干扰力有关.为了减振防振,必须准确判断振动的类型和产生的原因,综合分析引起振动的主要因素,找出它们的作用和相互关系,采取切实可行的有效措施隔断和减轻引起机床振动的各种干扰力,调整机床系统的固有频率、阻尼、刚度以提高其动态特性.

Analysis and Prevention of Vibration in Cutting

Vibration in cutting of machinery is chiefly classified as spontaneous vibration and compelling vibration . They are related to the characters and inside interference force and outside interference force in system of machine tool. In order to relief and prevention of vibration, it is necessary to judge correctly the type and producing reason of vibration and analyze the main factors of initiating vibration ,and find out their functions and each other relations. Then we should take practical and feasible and effective measures to cut off and relieve all kinds of interference force that lead to vibration of machine tool, and adjust the inherent frequency?impedance and rigidity of machine tool system so as to raise its moving character.