Based on the tread-road single degree-of-freedom vibration model, the research studies the physical characteristics of suspension, tire and tread simultaneously, and establishes suspension-tire-tread four degree-of-freedom ADAMS vibration model by means of multibody dynamics theory method. Simulation results show that the energy of vibration will be transferred to suspension and tire when the tread vibrating violently, and the toe-in angle, the camber angle and the vertical beating of tire will also start vibrating with the same frequency, but in various degrees. That verify the reasonableness of simplification of theoretical model, and the correctness of the theoretical model is proven. At last, the numerical simulation of bifurcation is applied to the four degree-of-freedom system, and the vehicle speed range which can generate self-excited vibration of tire tread is found. The dynamic differential equations in the theoretical model can be used to further not only theoretical but also experiment research.
Wu Xu-dong;Zuo Shu-guang;Lei lei;Yang Xian-wu;Li Yong.
Simulation of tire-suspension vibration system based on the friction self-excited [J]. Journal of Vibration and Shock, 2011, 30(9): 89-93
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