Method and apparatus for symptom diagnosis by monitoring vibrati

Details Method and apparatus for symptom diagnosis by monitoring vibrati Method and apparatus for symptom diagnosis by monitoring vibrati

1981-03-30

1984-03-13

Wise, Edward J.

Boots, shoes, and leggings

73593, G01P 1500

Patent

active

044371632

ABSTRACT:
A method of symptom diagnosis by continuously detecting vibration of the shaft of a rotary machine and monitoring a signal indicative of detected shaft vibration for the diagnosis of the operating condition of the rotary machine. In the method, a symptom of unusual operation of the rotary machine is diagnosed. The rotation speed range of the rotary machine is classified into a safety region, an alarm region and a trip region depending on the level of the shaft vibration signal. According to the disclosed method, symptom diagnostic regions are established within the safety region at time intervals of a symptom diagnostic period, and whether or not the level of the detected shaft vibration signal deviates from that of the symptom diagnostic regions is continuously monitored for the diagnosis of a symptom of unusual operation of the rotary machine.

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Measure Machinery Vibration, Kaufman, Instruments & Control Systems, Feb. 1975, pp. 59-62.

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