THE ANALYSIS OF STRUCTURAL-VIBRATION RELATED NOISE

The structural vibration of a machine or its components can contribute significantly to the overall noise that the machine radiates. The Author presents a systematic diagnostic approach for determining the magnitude and nature of such contributions to overall noise. In this approach, statistical cross-correlation analysis is used to make quantitative estimates of the noise produced by the vibrations of individual components. The success of this technique is illustrated by a description of its application to the noise analysis of a large rail-traction Diesel engine; the engine was mounted in a semi-reverberant test-cell, and the article includes results of one-third octave band analyses of the noise radiated by the engine and some of its components. Where structural vibration is suspected of being a dominant source of noise, a systematic noise-abatement programme can be undertaken in accordance with a procedure outlined in the article and incorporating a cross-correlation analysis for the identification of the engine components making large contributions to the total noise. Order from: BSRA as No. 47,016.

  • Availability:
  • Corporate Authors:

    Acoustical Publications, Incorporated

    27101 East Oviatt Road
    Bay Village, OH  USA  44140
  • Authors:
    • Kumar, S
  • Publication Date: 1977-4

Media Info

  • Features: References;
  • Pagination: 5 p.
  • Serial:
    • SOUND AND VIBRATION
    • Volume: 11
    • Publisher: Acoustical Publications, Incorporated
    • ISSN: 0038-1810

Subject/Index Terms

Filing Info

  • Accession Number: 00170035
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Feb 16 1978 12:00AM