EFFECT OF PISTON SLAP ON THE NOISE AND VIBRATION OF DIESEL ENGINES

A method of investigation piston-slap noise in diesel engines is described, and the following conclusions are reached: Piston slap mainly controls the cylinder block vibration and may be considered as a major source of engine noise and vibration. The oscillographic technique is the most reliable method to identify the contribution of piston slap and relating it to that associated with other exciting forces, such as combustion. Optimizing production tolerances, especially of the piston-to-bore clearance, could result in 2--4 dBa noise reduction. Simulation of piston slap is a convenient isolation technique to study this important source of noise on the engine and to establish the main controlling parameters affecting its contribution to overall engine noise and vibration.

  • Corporate Authors:

    Trade and Technical Press, Limited

    Crown House
    Morden, Surrey SM4 5EW,   England 
  • Authors:
    • Pullen, H L
    • HADDAD, S D
  • Publication Date: 1974-7

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00072787
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jan 16 1976 12:00AM