The study investigates the kinematic characteristic of the radial tire with a large section ratio with the analytical elastic foundation modeling. A proposed tire model with a flexible belt on an elastic analytical stiffness foundation considering the coupled feature between the radial and tangential of the tire carcass is investigated. the analytical two-dimension multi-stiffness function of a large section ratio sidewall is expanded from the radial function. The grounding modeling with the flexible carcass is discussed and the changed stiffness of the tire sidewall resulting from the structure is researched. The experimental and theoretical results indicate the following: (1) the radial and tangential stiffness function of the curved sidewall is related to the inflation pressure, structural curvature, and material properties; (2) the flexible carcass tire model with the non-linear elastic foundation can exactly character the stiffness and grounding feature, and the maximum error with the elastic foundation tire model is reduced by 5.8%.
LIU Zhihao, MA Chaoqun, FENG Haoran, LIU Xiuyu, GAO Qinhe.
2-D stiffness modeling of tire sidewall with a large flat ratio and verification of tire deformation characteristics[J]. Journal of Vibration and Shock, 2025, 44(7): 86-95
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