Theoretical analysis of tire acoustic cavity noise and proposal of improvement technique

✍ Scribed by Hiroshi Yamauchi; Yasuji Akiyoshi

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 349 KB
• Volume: 23
• Category: Article
• ISSN: 0389-4304
• DOI: 10.1016/s0389-4304(01)00152-7

✦ Synopsis

This paper describes an investigation into interior road noise caused by the acoustic cavity resonance inside the tire-wheel assembly when a passenger car is running. First of all, we researched some characteristics of the acoustic cavity resonance inside the tire-wheel assembly. Next, we derived the equation of motion of the acoustic cavity system and explained the characters theoretically. Then, we proposed a technique to reduce the peak level of the acoustic cavity natural frequency. Finally, we made prototype wheels and confirmed their validity.