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橡胶轮胎接地应力的非均布效应及车辆动载的影响使得轮胎接地反力产生很大的不均匀性和波动性。沥青路面在车辆荷载作用下的破坏形式也因此复杂化。文章通过采用有限元分析法及基于路面不平整度的车辆-地面随机振动模型,对轮胎接地应力的非均布效应和车辆动载对轮-地接地应力的影响进行分析。得到了动载下轮胎接地的力学特征及水平剪力对沥青路面的影响情况。
The non-uniform distribution of rubber tire grounding stress and the influence of vehicle dynamic load make the tire grounding reaction force have great heterogeneity and volatility. Asphalt pavement under the action of the vehicle under the form of damage is also complicated. In this paper, by using finite element analysis and vehicle-ground random vibration model based on unevenness of road surface, the effect of non-uniform distribution of tire ground stress and the influence of vehicle dynamic load on wheel-ground grounding stress are analyzed. The mechanical characteristics of ground under tire load and the influence of horizontal shear on asphalt pavement are obtained.