旋转机械发生振动故障以同频振动居多。
Most of vibration faults in a rotating machinery are concerned in synchronous vibration.
这使得同频振动成为既简单又难以判别的故障。
Therefore, the Synchronous vibration is a fault Common but difficult to distinguish.
工厂实践中极易将各种原因引起的同频振动均归结为转子不平衡，造成一些误诊。
It is easy to consider all Synchronous vibration due to various reasons as dynamic unbalance in plant practice, so that often to make erroneous diagnosis.
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