Vibration analysis of automobile tire due to bump impact

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 numerical 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.