The bending exercises of radial tire is one of the most important structural properties of the sidewall relating to ride and road noise of automobiles. The frequency band analysis is more useful for analyzing tire road noise due to property change of tread and sidewall. In this paper, the vertical stiffness and lateral stiffness of tire which have a various tread and sidewall is measured and the road noise is measured about same road condition. Furthermore, we investigated the effect on the structure of the tire tread and sidewall for the sound pressure level.

• 이태근(Department of Precision mechanical engineering, Daeduk College) | Tae-Keun Lee
• 정진용(Department of Automotive and mechanical engineering, Kunjang University College) | Jin-Yong Jeong
• 김병삼(Member, Department of mechanical and automotive engineering, Wonkwang University) | Byoung-Sam Kim Corresponding Author