一、概述 在工程技术中,常常会遇到机械振动问题。这是因为机器设备在运转时,由于旋转体的不平衡、负载的不均匀、机构中存在间隙以及表面质量和润滑的不够理想而产生滑动或滚动的不平衡等,都会引起振动。严格地说,几乎所有机器都不可避免有些振动现象。除了少数利用振动原理的机械(如振动装料 First, an overview In engineering, often encountered mechanical vibration problems. This is because the machinery and equipment are vibrating when they are operating due to imbalance in the rotating body, uneven load, gaps in the mechanism, and poor surface quality and lubrication, resulting in sliding or rolling imbalance. Strictly speaking, almost all machines are inevitable some vibration phenomenon. Except for a few machines that use the principle of vibration (such as vibration loading