振动压实-土系统振动摩擦机理研究及其振动响应分析

ombining vibration with tribology, this paper presents the mechanism of friction in vibration based on granules. According to granular dynamic theory, friction of granule materials in vibration case changes from static to sliding. With frequency increasing, inertia force of soil is increased and internal friction is reduced in the process of vibration compaction. And there exists the optimal value of vibration intensity to make the internal friction least. At last, the exponential function hysteretic model of soil is proposed and the nonlinear vibration response is got.