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THE UTILITY OF 3 MULTICHANNEL SPECTRAL TECHNIQUES FOR MULTIPISTON COMPRESSOR NOISE SOURCE IDENTIFICATION.

Author(s) : BROWN D. E., SHERMAN P. J.

Summary

THE WORK INVESTIGATES THE SOURCES OF NOISE FROM A 10-CYLINDER AUTOMOTIVE AIR CONDITIONING COMPRESSOR USING 3 MULTICHANNEL SPECTRAL ANALYSISTECHNIQUES. THREE TRANSDUCERS WERE INCORPORATED INTO A COMPRESSOR AND THEIR OUTPUT SIGNALS AS WELL AS A SOUND PRESSURE MICROPHONE SIGNAL WERE EVALUATED USING THESE 3 SPECTRAL ESTIMATION TECHNIQUES: A TYPICAL DFT (DIAGNOSTIC FUNCTION TEST) METHOD ; AN AUTOREGRESSIVE MULTICHANNEL SPECTRUM ESTIMATION TECHNIQUE ; AND A SPECTRUM ESTIMATION TECHNIQUE. RESULTS, COMPARISONS, AND CONCLUSIONS ON THE UTILITY OF EACH OF THESE METHODS ARE DISCUSSED.

Details

  • Original title: THE UTILITY OF 3 MULTICHANNEL SPECTRAL TECHNIQUES FOR MULTIPISTON COMPRESSOR NOISE SOURCE IDENTIFICATION.
  • Record ID : 1991-2090
  • Languages: English
  • Publication date: 1990/07/17
  • Source: Source: Proc. 1990 int. Compress. Eng. Conf., Purdue Univ.
    vol. 2; 625-633; 5 fig.; 6 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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