Simulation and Analysis on Coupled Vibration of Fracturing Truck Process

Abstract

Abstract: In order to study the effect of vibration of engine and fracturing pump on truck body during fracturing operation, lumped parameter method and state space method were used to build multi-body dynamics coupling model between the balanced suspension, tires, engine, fracturing pump and the frame. Based on this model, the MATLAB/Simulink software was applied to simulate the characteristic of rotational speed, stiffness and damping of the 2 500 fracturing truck during fracturing operation. The results show that the maximum intensity of vertical vibration is stronger hundreds times than pitch motion. Vibration frequency range of 0~10 Hz affects vibration most evidently; the variation of stiffness of rear suspension and the damping of the front and central suspension have a great influence on amplitude, while the variation of damping of rear suspension and the stiffness of the front and central suspension have a great influence on frequency of peak.

Key words: fracturing truck, vibration, lumped parameter method, state space method, damping

CLC Number:

TE934

Wang Chuan, Xie Zhenqiang, Wang Guorong, Zhang Shimin, Hou Wen, Li Jun, Zhou Xu, Chu Fei. Simulation and Analysis on Coupled Vibration of Fracturing Truck Process[J]. Journal of System Simulation, 2016, 28(7): 1586-1592.

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