Noise radiated by diesel engine surfaces is the most difficult to control. The author summarises the basic approach to noise control. Methods by which noise from all sources can be controlled are examined together with means of controlling vibration of the external surfaces of the engine. Methods of enclosing the engine are also discussed. An illustration is given of the use of spectral analysis to determine the source of noise. Some of the problems to be solved when developing a combustion chamber are examined. Diagnosis of the contribution to the overall noise of the engine from each surface area can be achieved by measuring the noise through 'windows' opened over each area in an otherwise enclosed engine. An example is given of the use of measurements of the surface vibration in predicting the level of sound emitted from a surface. /TRRL/

  • Corporate Authors:

    Trade and Technical Press, Limited

    Crown House
    Morden, Surrey SM4 5EW,   England 
  • Authors:
    • RUSSELL, M F
  • Publication Date: 1978-11-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00195529
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1979 12:00AM