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김찬중(Chanjung Kim),권성진(Sungjin Kwon),이봉현(Bonghyun Lee),박현만(Hyunman Park),성기득(Kideug Sung),조춘택(Chuntaek Cho) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
The nature of acoustic radiation is responsible for tire vendors as one of promising performances directly related to the driver's comfortability in a vehicle system and thereby, the accurate prediction of the acoustic radiation is required during the development of tire system. Even though the prediction technology of acoustic radiation itself is reliable using proven softwares, the prediction of a tire system under developing process is hard to guarantee since the dynamic interaction between the tire and suspension module could not be considered sufficiently owing to the suspension module is not constructed as a mature model. In this paper, the dynamic effect of a suspension module over a tire system is investigated to verify that the quarter-car model can provide the more accurate acoustic prediction than that case of tire model alone. The acoustic radiation analysis is performed for two finite element models of the tire system, with and without a suspension model, using a wheel force transducer data on a proving ground. The characteristics of acoustic result according to the special events of proving ground is addressed at physical perspectives and it concludes that the reliable prediction of a tire system can be expected only in case the dynamics of suspension module is included.