ACOUSTIC CHARACTERISTICS OF A CAR CAVITY AND ESTIMATION OF INTERIOR SOUND FIELD PRODUCED BY VIBRATING PANEL

The acoustic characteristics are determined by using a half size model. The acoustic resonances of the model compare favorably with those of an actual car. It is shown that by treating the body structure as an assemblage of a number of point sources, and determining the sound pressure transfer functions for various points on the body structure, the sound pressure level inside the car cavity can be determined with good accuracy. Using this technique, the source areas in a car body, which are major contributors to the total noise produced, can be identified.

• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Jha, S K
  • Cheilas, N
• Publication Date: 1976-12-5

Media Info

• Features: References;
• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Acoustic properties; Acoustics; Automobiles; Mathematical models; Motor vehicle bodies; Noise; Resonance; Sound level; Vibration
• Uncontrolled Terms: Models
• Old TRIS Terms: Automobile bodies
• Subject Areas: Environment; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00153230
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: ASME 76-WA/DE 1
• Files: TRIS
• Created Date: Oct 29 1977 12:00AM