Simulation Analysis on Dynamic Characteristics of Vibration Pile System

In engineering, the working process of many devices often includes friction between the workpiece and the object, or between the loose material and the workpieces. However, the frictional resistance is not revealed clearly, either the effect of vibration on friction from the vibration liquefaction perspective. For the vibratory pile system, people mostly focus on examining the pile end resistance in the sinking pile resistance in the past, ignoring or simplifying its peripheral friction. In the actual working situation, the vibration pile is to overcome the frictional resistance on the pile side and the pile resistance by vibration. The frictional resistance on the pile side by the surrounding soil is a non-linear force that cannot be ignored. In this paper, we focus on the nonlinear dynamics analysis of vibratory pile system and study the vibratory frictional characteristics between pile-soil and its nonlinear dynamics under different parameters, such as excitation frequency of exciter, excitation amplitude and soil stiffness of vibratory pile system.