Evaluation of Refrigeration Compressor Quality Using Acoustic Techniques.

Abstract

A system using acoustic techniques was designed for the nondestructive testing of refrigeration compressors. An initial system evaluation was restricted to one connecting rod bearing and one suction valve of a Dunham-Bush model BP-44(II) refrigeration compressor. An oversize bearing and a leaking suction valve were used to simulate defects which do not at the time of acceptance testing impair functionality of the compressor, but eventually lead to shortened functional life and/or catastrophic failure. Results of the evaluation indicate that such defects have vibrational patterns which can be distinguished from nondefective bearings and suction valves. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1972
Accession Number
AD0748396

Entities

People

  • Bernard Hoffman
  • John W. Wendolowski

Organizations

  • Frankford Arsenal

Tags

DTIC Thesaurus Topics

  • Compressors
  • Connecting Rods
  • Nondestructive Testing
  • Rods
  • Test And Evaluation
  • Test Methods

Fields of Study

  • Engineering

Readers

  • Combustion and Flow Dynamics.
  • Structural Health Monitoring of Composite Structures.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).