Patent ID: 6768938
Filing Date: 2004-07-27
Classification: G01H

Abstract:
A method for monitoring vibration levels associated with a rotating component and establishing an alarm setting therefor, the method comprising the steps of:a) measuring an operating parameter and a corresponding set of vibration amplitudes for a rotating component during a period of operation; b) normalizing the set of measured vibration amplitudes based on established amplitude limits for the rotating component so as to define a set of normalized amplitude data points, wherein the established amplitude limits are a function of the measured operating parameter for the component; c) storing the set of normalized amplitude data points into parameter-based data blocks, each data block extending over a predetermined range of the operating parameter; d) estimating, for each data block, a time period remaining to reach the established amplitude limits based on changes in the normalized amplitude data points stored in the data blocks over the period of operation; and e) establishing an alarm setting based on the estimated time period remaining to reach the established amplitude limits for each data block.