机床运转时,振动与噪声是机械运动过程的两个残余能量,两者之间有着密切的联系。机械振动在噪声的产生和传播中起着主要作用。本文试图根据振动的理论阐述机床噪声的产生、传播及其控制的一般机理,阐明振动与噪声的关系,供分析、研究机床噪声问题的参考。 一、振动与噪声 1.振 When the machine is running, vibration and noise are two residual energies in the process of mechanical movement, and there is a close relationship between the two. Mechanical vibration plays a major role in the generation and propagation of noise. This paper attempts to elaborate the general mechanism of machine noise generation, propagation and control according to the theory of vibration, clarify the relationship between vibration and noise, and provide a reference for the analysis and study of machine noise problems. First, vibration and noise 1. Vibration