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.
通过修正金属细棒的长度和横截面积，实现了换能器中纵向振动与弯曲振动的同频共振。
By correcting the length of the metal slender rods, the simultaneous resonance of the longitudinal and flexural vibrations in the transducer is acquired.
通过改变换能器前后指数型盖板的半径减编系数，得出了换能器中纵向与扭转两种振动模式同频共振的条件。
By changing the cross sectional radius decay coefficient of the exponential metal horns, the longitudinal and torsional vibrations in the transducer could resonate at the same resonance frequency.
这存在状态允许你们维持创造振动而且同样磁化你们的同频共振。
This state of being allows you to maintain the vibration of creation and magnetizes your attraction to like resonation.
通过修正金属细棒的长度和横截面积，实现了换能器中纵向振动与弯曲振动的同频共振。
The resonance frequency equations for the longitudinal and flexural vibrations in the transducer are derived.
测试结果表明，调节阀处于不稳定工作状态即阀杆振动工况取决于脉动压力与阀杆固频率是否同频，并非其脉动压力值大小；
These results show that the vibration of control valve rod depends on if its frequency and one of dynamic pressure pulse is same but not the magnitude of pulse value.
不对称叶栅非谐设计虽然会引起与转速同频的较大幅值激振力成分，但从整体考虑可有效降低叶片振动应力。
Though asymmetry stator mistuned may result in bigger amplitude aerodynamic force with the same frequency as rotational speed, it could reduce effectively the aerodynamic force of blade as a whole.
不对称叶栅非谐设计虽然会引起与转速同频的较大幅值激振力成分，但从整体考虑可有效降低叶片振动应力。
Though asymmetry stator mistuned may result in bigger amplitude aerodynamic force with the same frequency as rotational speed, it could reduce effectively the aerodynamic force of blade as a whole.
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