《Vibration analysis of automobile tire due to bump impact》.pdfVIP

Available online at Applied Acoustics 69 (2008) 473–478 /locate/apacoust Vibration analysis of automobile tire due to bump impact Tae Keun Lee a,*, Byoung Sam Kim b a CDD Team, Kwangwon Tech Co., LTD., Digital Empire Building D-304, 980-3, Yeongtong-dong, Yeongtong-gu, Suwon, Gyunggi-do 443-813, Republic of Korea b Division of Mechanical Automotive Engineering, Wonkwang University, 344-2 Shinyong-dong, Iksan, Chonbuk 570-749, Republic of Korea Received 10 January 2007; received in revised form 4 December 2007; accepted 4 December 2007 Available online 25 January 2008 Abstract The improvement of car driving comfort is requested according to development of automobile manufacturing technology. Therefore, many experts have been studying automotive vibration of normally driving cars to improve automotive driving comfort. In this paper, vibration characteristics of an automobile tire that passes a cleat are analyzed. The model for automobile tire is verified through numer- ical analysis and experimental method. The automobile tire is assumed to 7-degree of freedom system, and the effect on the proposed tire design factor is considered. This analysis result proved that the proposed tire design factor reduced tire and wheel vibration energy. 2007 Elsevier Ltd. All rights reserved. Keywords: Automobile tire; Harshness; Ride; Vibration energy; Tread rubber; Bump impact 1. Introduction down of the road surface and force, acting on the car body,