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BEARING DEVICE VIBRATION ANALYSIS METHOD, BEARING DEVICE VIBRATION ANALYZER, AND ROLLING BEARING CONDITION MONITORING SYSTEM

  • US 20160187226A1
  • Filed: 07/01/2014
  • Published: 06/30/2016
  • Est. Priority Date: 08/01/2013
  • Status: Abandoned Application
First Claim
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1. A bearing device vibration analysis method for analyzing vibration of a bearing device by a computer, the bearing device including a rolling bearing and a housing of the rolling bearing, the method comprising the steps of:

  • inputting data about a shape of damage given to a contact portion between a rolling element and a raceway surface of the rolling bearing;

    calculating a displacement between an inner ring and an outer ring of the rolling bearing caused by the damage;

    calculating a vibration characteristics model by a mode analysis program for analyzing a vibration mode of the bearing device, the vibration characteristics model representing a vibration characteristic of the bearing device; and

    calculating a vibration waveform at a predetermined position on the bearing device by applying, to the vibration characteristics model, a history of an exciting force occurring to the rolling bearing, the history of the exciting force being obtained by multiplying the displacement calculated in the step of calculating a displacement, by a spring constant between the inner ring and the outer ring.

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