MODELING OF ENGINE EXHAUST SYSTEM NOISE

Traditional methods of designing mufflers for internal combustion engines have relied on transmission loss models without regard to engine coupling and the effects of radiation impedance. Progress within the past few years has shown how these may be modeled and incorporated into exhaust system design. Simplified models based incorporating steady, mean flow into linear acoustic equations, with proper attention to nonlinear effects when needed, have provided new impetus to computer-aided design in this field. This paper reviews these new developments and stresses the importance of a proper balance between theoretical and empirical approaches in what has traditionally been a cut-and-dry discipline.

  • Supplemental Notes:
    • Noise and Fluids Engineering, Presented at Winter Annual Meeting of ASME, Atlanta, Georgia, Nov
  • Corporate Authors:

    American Society of Mechanical Engineers

    Two Park Avenue
    New York, NY  United States  10016-5990
  • Authors:
    • Sullivan, J W
  • Publication Date: 1977

Media Info

  • Features: References;
  • Pagination: p. 161-169

Subject/Index Terms

Filing Info

  • Accession Number: 00183264
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Dec 29 1978 12:00AM