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Method and apparatus for evaluating vibrations of a rotary body while maintaining the rotary body in a static or non-rotational state
Method and apparatus for evaluating vibrations of a rotary body while maintaining the rotary body in a static or non-rotational state
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机译:在将旋转体保持在静态或非旋转状态时评估旋转体振动的方法和装置
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摘要
A method and apparatus for evaluating the vibration of a rotary body in a static or non-rotational state to determine a profile of critical speeds including profiles of critical speeds which exist beyond a rated revolution velocity of the rotary body. This invention comprises: a plurality of bearings for maintaining the rotary body in a non-rotating or static condition; a rotary vibrator for applying an exciting force which is rotated about a shaft to the rotary body; a vibration sensor for detecting the vibration of the rotary body; a vibration meter for measuring an output from the vibration sensor; and a vibration power source for supplying AC power to the rotary vibrator and for sweeping a frequency of the exciting force applied from the rotary vibrator to the rotary body from a low-frequency region to a high-frequency region. Thus, the present invention obtains the vibrational characteristics of the rotary body in a simulated rotational or dynamic state in which the rotating body is actually maintained in a static or non-rotational state.
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