The laboratory tests are described which were conducted on new and damaged bearings to determine the feasibility of using high-frequency vibration as a diagnostic tool. A high-frequency band pass filter and demodulator was assembled to permit field measurements of the high-frequency vibrations. Field tests were conducted on an actual truck and on an axle assembly run in a grease test rig. These field tests were directed toward demonstration of the suitability and capabilities of the high-frequency technique for field application. Two specific areas of field application were identified as being cost effective for railroad use. One area is the examination of railroad roller bearings at a derailment site, and the second is as a wayside detector to supplement present hot box detectors for defective roller bearings. (Author)

  • Corporate Authors:

    Shaker Research Corporation

    Northway 10 Executive Park
    Ballston Lake, NY  United States  12019
  • Authors:
    • WILSON, D S
    • Frarey, J L
  • Publication Date: 1975

Media Info

  • Pagination: 46 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00094671
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-CR-144114
  • Contract Numbers: NAS8-31449
  • Files: TRIS
  • Created Date: May 14 1976 12:00AM