ANALYTICAL MODEL OF THE TRUCK TIRE VIBRATION SOUND MECHANISM

A theoretical model is developed to describe the sound radiation by the surface vibration of in-service truck tires. The tire is modeled as an infinitely long incomplete circular cylindrical shell. The effects of inflation pressure and structural damping are included. The normal displacement, velocity, and acceleration resulting from a fluctuating load are determined using Flugge's thin shell theory. Through numerical integration of the surface acoustic intensity, the radiated sound power is calculated as a function of damping, inflation pressure, and bending stiffness. Results indicate that the forced acoustic response is insensitive to small changes in the material loss factor and the bending stiffness. The inflation-induced membrane stresses determine the acoustic response character to a large extent and total neglect of the bending stiffness does not seriously affect the calculated sound power. The basic sound radiation mechanism is shown to be the damped progressive wave field on the structure in the vicinity of the applied force. The results indicate that the potential sound reduction might best be approached through study of the tire loading and vibration response mechanisms.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00014966
• Corporate Authors:

  Acoustical Society of America

  335 East 45th Street
  New York, NY  United States  10017
• Authors:
  • Keltie, R F
• Publication Date: 1982-2

Media Info

• Features: Appendices; Figures; Tables;
• Pagination: p. 359-367
• Serial:
  • Journal of the Acoustical Society of America
  • Volume: 71
  • Issue Number: 2
  • Publisher: Acoustical Society of America
  • ISSN: 0001-4966
  • Serial URL: http://asadl.org/jasa/

Subject/Index Terms

• TRT Terms: Bending; Damping (Physics); Inflation; Loads; Mathematical models; Noise; Stiffness; Tire pressure; Tires; Trucks; Vibration
• Uncontrolled Terms: Loading; Models
• Subject Areas: Environment; Highways; Motor Carriers; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00370221
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS-033 647
• Files: HSL, TRIS, USDOT
• Created Date: Jan 31 1983 12:00AM