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一、概述在机床加工过程中,常常出现二种不同类型的振动,即强迫振动和自激振动。强迫振动是指机床内部或外部的干扰源所产生的周期性干扰力,使机床结构产生响应引起的振动。自激振动是伴隋在切削加工中,常易产生的振动。自激振动将影响加工表面质量和限制机床加工效率的提高。为了分析振源(或分析噪声源)经常采用激振试验,以频响
First, an overview In the machining process, often appear two different types of vibration, that is, forced vibration and self-excited vibration. Forced vibration refers to the periodic interference force generated by the interference source inside or outside the machine tool to make the machine structure respond to the vibration caused by the response. Self-excited vibration is accompanied by Sui in the cutting process, often easy to produce vibration. Self-excited vibration will affect the quality of the machined surface and limit the improvement of machining efficiency. In order to analyze the vibration source (or analysis of noise sources) often used vibration test to frequency response