2、，其上每个微小质点产生的离心惯性力不能相互抵消，从而产生了不平衡的离心力，就造成了动态的不平衡。转子不平衡是由于转子部件质量偏心或转子部件出现缺损造成的故障，它是旋转机械最常见的故障。据统计，旋转机械约有70%的故障与转子不平衡有关。因此，对不平衡故障的研究与诊断也最有实际意义。【关键词】：旋转机械转子不平衡故障诊断【Abstract】： In the ideal case, no matter how the rotary body is rotating or not rotating, the pressure on the bearings is the same, so
3、that the rotary body is balanced. However, because material is unevenblank has some defect and machining and assembling generate errors,even designing has been asymmetrical geometry and so on,the various rotary body of the practical application become to be unbalanced. Even under Static balanc
4、e.When the rotary body is rotating,centrifugal force of inertia generated on each tiny particle can’t cancel each other out. Then the rotary body produce unbalanced centrifugal force and cause dynamic imbalance. Rotor imbalance is due to partiality of mass of the rotor parts or the fault cause
5、d by rotor parts. It is most common fault of rotating machinery. According to statistics,70%fault of rotating machinery is about with the rotor imbalance. Therefore, there is best practical significance for research and diagnosis of unbalanced fault.[Key Words] : Rotating machinery; Rotor;
