PREDICTION OF LOW FREQUENCY SOUND PRESSURE DISTRIBUTION INSIDE A VERTICAL PASSENGER COMPARTMENT FROM ITS STRUCTURAL DYNAMIC RESPONSE

This paper describes a study of the mechanism of noise generation by vibrating structures. A theory is developed from the well-established "simple-source" theory for the propagation of sound from a vibrating structure, provided that the vibration profile of the structure is known in detail. Experimental computer-based control and analysis techniques have been developed on an on-line basis to apply the theory developed to vehicle body structures. Some results from a simple box structure and a small sports saloon car structure are presented to illustrate the techniques and demonstrate the level of accuracy achieved by comparing experimental and theoretical results. (Author/TRRL)

  • Corporate Authors:

    Modino Press Limited

    50 Pine Grove
    London N2O 8LA,   England 
  • Authors:
    • Dunn, J W
    • OLATUNBOSUN, O A
    • Mills, B
  • Publication Date: 1980-9

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00334082
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Sep 16 1981 12:00AM