Static pile press;  Lifting system;  dynamic tension;  Kinetic coefficient;  modeling;  Simulation

Through the analysis and research of the lifting system of hydrostatic pile press, the simulation model of hydraulic drive system was established by using AMESim software, and the mechanical equation of the wire rope was established, and the influence of excitation acceleration on the dynamic tension of the wire rope was analyzed. The relationship between the maximum lifting capacity of the lifting system and the maximum oil pressure of the luffing cylinder and the luffing angle of the boom under different moving coefficients is carried out. Through simulation analysis, it can be seen that the change of excitation acceleration will cause the change of dynamic tension, and the modified dynamic load coefficient is used instead of empirical value to analyze the model mechanically, which not only simplifies the calculation process but also makes the results more accurate.