US Patent:
20190310164, Oct 10, 2019
Inventors:
- Farmington CT, US
Danbing Seto - Avon CT, US
Sheridon Everette Haye - Mansfield CT, US
Allan J. Volponi - West Simsbury CT, US
Zaffir A. Chaudhry - S. Glastonbury CT, US
Gregory S. Hagen - Glastonbury CT, US
Lichu Zhao - Glastonbury CT, US
Robert H. Luppold - West Newton PA, US
Assignee:
United Technologies Corporation - Farmington CT
International Classification:
G01M 13/04
G01N 33/28
Abstract:
A method for fault diagnosis of a bearing includes detecting, using an oil debris monitor (ODM) sensor, ODM data corresponding to an amount of debris flowing downstream from the bearing. The method also includes detecting, using a vibration sensor, vibration data corresponding to vibration of the bearing during use. The method also includes determining, by a controller, a vibration stage flag corresponding to a severity of damage of the bearing based on the vibration data. The method also includes determining, by the controller, a severity level of the damage of the bearing based on a combination of the vibration stage flag and the ODM data. The method also includes outputting, by an output device, the severity level.