应用有限差分法离散化偏微分方程，并以某煤矿副立井塔式多绳摩擦提升系统为例进行仿真和实验分析，同时分析平衡钢丝绳、刚度比对钢丝绳横向振动的影响。(The finite difference method is used to discretize the partial differential equations. The simulation and experimental analysis of a multi rope friction hoist system of a mine's