Accession Number:

ADA526556

Title:

COLLABORATIVE RESEARCH AND DEVELOPMENT (CR&D). Delivery Order 0040: Bearing Health Monitoring Research and Development

Descriptive Note:

Final rept. 8 Jul 2005-1 Feb 2008

Corporate Author:

UNIVERSAL TECHNOLOGY CORP DAYTON OH

Personal Author(s):

Report Date:

2008-02-01

Pagination or Media Count:

11.0

Abstract:

This research in support of the Air Force Research Laboratory Materials and Manufacturing Directorate was conducted at Wright-Patterson AFB, Ohio from 8 July 2005 through 1 February 2008. This task developed methodologies and performed health monitoring on advanced systems for aerospace applications to bearing materials. Coated bearings in high performance turbine engines can provide considerable advancements in engine reliability and service life extension. One coating performance indicator is the level of vibration generated by rolling elements and their cage separators at high speed bearing operation. Vibrations in engine bearings can be difficult to monitor because they are located in cramped spaces, and there is often system noise caused by other components located on the same shaft. A potential in-situ bearing health monitoring solution is a non-intrusive cage-mounted sensor that detects cage vibration and transmits wirelessly to a nearby receiver. This work describes the sensitivity of the cage-mounted sensor compared to a support-mounted accelerometer in the detection of seeded faults in coated and uncoated bearings

Subject Categories:

  • Aircraft
  • Machinery and Tools
  • Miscellaneous Detection and Detectors
  • Mechanics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE