随着工农业生产和科学技术的发展,机器的运转日趋高速化。对于高速旋转的零部件,由于材质不均,加工装配误差等原因,转动零部件实际重心对旋转轴心总是有偏移的,在高速下旋转时,将产生很大的离心惯性力,因而引起振动,在运动付中产生附加的动压力。这 With the industrial and agricultural production and the development of science and technology, the operation of the machine is becoming more and more rapid. For high-speed rotation of parts, due to uneven material, processing and assembly errors and other reasons, the actual center of gravity of the rotating parts of the rotation axis is always offset, at high speed rotation, will have a great centrifugal inertial force and therefore Caused by vibration, pay in motion to produce additional dynamic pressure. This