【摘要】 旋转机械的振动具有其复杂性和特殊性，在各个响应频率下，转子的运动轨迹是一个椭圆，该轨迹的主振矢、所在方向、副振矢以及进动方向是进行旋转机械故障诊断的重要信息。本文给出一种实用的旋转机械振动分析方法——矢谱分析，对于旋转机械故障诊断具有十分重要的工程意义。更多还原

【Abstract】 It has the complexity and specialty in the rotary machine fault dignosis. The trace of the rotor is an elliptical orbit under the each mono frequency component. The main vibration vector, its direction, assistant vibration vector and precession direction are the important information for the rotary machine fault dignosis. The paper gives a practical analysis method, that is, VECTOR SPECTRUM. It has important engineering significance to the rotary machine fault dignosis.更多还原