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:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00381810
• Corporate Authors:

  Acoustical Publications, Incorporated

  27101 East Oviatt Road
  Bay Village, OH  United States  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

• TRT Terms: Diesel engines; Engines; Machinery; Noise; Noise control; Noise sources; Structural analysis; Vibration
• Old TRIS Terms: Diesel noise; Engine noise; Machinery noise; Machinery vibration; Structural vibration; Structure-borne noise
• Subject Areas: Environment; Marine Transportation; Vehicles and Equipment;

Filing Info

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