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)


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    Title :

    Investigations of a Bearing Fault Detector for Railroad Bearings


    Contributors:
    D. S. Wilson (author) / J. L. Frarey (author)

    Publication date :

    1975


    Size :

    46 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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