BEARING DEVICE VIBRATION ANALYSIS METHOD, BEARING DEVICE VIBRATION ANALYZER, AND ROLLING BEARING CONDITION MONITORING SYSTEM
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United States of America Patent
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Issued Date -
Jun 30, 2016
app pub date -
Jul 1, 2014
filing date -
Jul 1, 2014
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Abstract
A vibration analysis method includes the steps of: inputting data about damage of a rolling bearing; calculating, by a dynamics analysis program, a history of a displacement between inner and outer rings occurring to the rolling bearing due to the damage when a rotational shaft of the rolling bearing rotates; calculating a vibration characteristics model of the bearing device by a mode analysis program; 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 obtained by multiplying the displacement between the inner and outer rings calculated in the step of calculating a history, by a bearing spring constant.
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