SYSTEM AND METHOD FOR MONITORING COMPONENT HEALTH USING RESONANCE
First Claim
1. A system comprising:
- a plurality of sensing devices configured to generate acoustic emission (AE) signals that are representative of acoustic emission waves propagating through at least one component of a machine, wherein the at least one component has a damage state and the damage state has a resonance frequency; and
a processing subsystem that is in operational communication with the plurality of sensing devices to receive AE signals, wherein the processing subsystem includes a resonance detection system that identifies the resonance frequency of the damage state during operation of the machine using the AE signals; and
,wherein the processing subsystem monitors the damage state of the at least one component using the resonance detection system.
2 Assignments
0 Petitions
Accused Products
Abstract
This disclosure provides systems and methods for using a health monitoring system with acoustic emissions (AE) signals and the resonance frequency of the damage state of a component in a machine to monitor component health. AE signals collected from sensors on an operating machine are analyzed to identify signal features or events that correspond to component resonance frequencies. The AE signal features proximate to the component resonance frequencies and how those features and the component resonance frequency changes over time enable the identification and monitoring of damage states, such as cracks in the stator vanes of a compressor, gas turbine, steam turbine, or generator.
-
Citations
24 Claims
-
1. A system comprising:
-
a plurality of sensing devices configured to generate acoustic emission (AE) signals that are representative of acoustic emission waves propagating through at least one component of a machine, wherein the at least one component has a damage state and the damage state has a resonance frequency; and a processing subsystem that is in operational communication with the plurality of sensing devices to receive AE signals, wherein the processing subsystem includes a resonance detection system that identifies the resonance frequency of the damage state during operation of the machine using the AE signals; and
,wherein the processing subsystem monitors the damage state of the at least one component using the resonance detection system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method of monitoring the health of components of a machine, the method comprising:
-
generating acoustic emission (AE) signals that are representative of acoustic emission waves propagating through at least one component of the machine, wherein the at least one component has a damage state and the damage state has a resonance frequency; identifying the resonance frequency of the damage state during operation of the machine using received AE signals; and monitoring the damage state of the at least one component using the received AE signals proximate the resonance frequency of the damage state. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A system for monitoring component health of a machine, comprising:
-
an acoustic emission (AE) data receiver for receiving AE signals that are representative of acoustic emission waves propagating through at least one component of the machine, wherein the at least one component has a damage state and the damage state has a resonance frequency; a resonance detection system for identifying the resonance frequency of the damage state during operation of the machine using the AE signals; and a health response system for monitoring the damage state of the at least one component using the AE signals proximate the resonance frequency of the damage state. - View Dependent Claims (22, 23, 24)
-
Specification