Methods and systems for estimating residual useful life of a rolling element bearing
First Claim
1. A system for estimating residual useful life of a rolling element bearing in an operating rotor bearing system, the system comprising:
- a vibration monitoring system including or in communication with a processor for detecting a vibratory response of the operating rotor bearing system by receiving a vibration signal representing the vibratory response and configured, in response thereto, to;
detect a vibratory pattern from the vibratory response;
compare the vibratory pattern to a reference vibratory pattern, the reference vibratory pattern having a plurality of successive failure propagation stages with respective vibratory specific patterns;
identify a failure propagation stage of the plurality of successive failure propagation stages in which the vibratory pattern substantially matches a respective vibratory specific pattern of the failure propagation stage; and
correlate the failure propagation stage to the residual useful life remaining in the rolling element bearing.
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Accused Products
Abstract
Estimating residual useful life of a rolling element bearing in an operating gas turbine engine is provided. A processor receives a vibration signal from a vibration sensor. The vibration signal includes a vibratory response of the rolling element bearing. Processor detects a vibratory pattern of the rolling element bearing from the vibration signal and compares the vibratory pattern to a reference vibratory pattern. Processor identifies a failure propagation stage in which the vibratory pattern matches the reference vibratory pattern. Processor correlates the failure propagation stage to the residual useful life remaining in the rolling element bearing and generates an output signal representing the residual useful life remaining in the rolling element bearing.
5 Citations
5 Claims
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1. A system for estimating residual useful life of a rolling element bearing in an operating rotor bearing system, the system comprising:
a vibration monitoring system including or in communication with a processor for detecting a vibratory response of the operating rotor bearing system by receiving a vibration signal representing the vibratory response and configured, in response thereto, to; detect a vibratory pattern from the vibratory response; compare the vibratory pattern to a reference vibratory pattern, the reference vibratory pattern having a plurality of successive failure propagation stages with respective vibratory specific patterns; identify a failure propagation stage of the plurality of successive failure propagation stages in which the vibratory pattern substantially matches a respective vibratory specific pattern of the failure propagation stage; and correlate the failure propagation stage to the residual useful life remaining in the rolling element bearing. - View Dependent Claims (2, 3, 4, 5)
Specification