钢丝绳在紧急制动下的动荷应力分析，属于弹性杆的纵向振动。数学上归结为求解非齐次二阶偏微分方程（波动方程），它的全解十分复杂。为此，提出了简化方法，即对钢丝绳的振型作了假设（位移函数中的主函数设为正弦型）。从而把问题归结为求解一个脉冲函数作用下的单自由度系统，用动荷因数表达且制成表格。其结果反应在因数Ｃ＝ｆ（α）上，与精确解十分接近。 Dynamic stress analysis of wire rope under emergency braking belongs to the longitudinal vibration of the elastic rod. Mathematically, it comes down to solving the inhomogeneous second-order partial differential equation (wave equation). Its total solution is very complicated. To this end, a simplified method is proposed, that is to say, the vibration mode of the rope is assumed (the main function of the displacement function is set as the sine type). Thus the problem boils down to solving a single-degree-of-freedom system under the action of a pulse function, expressed as a dynamic load factor and tabulated. The results of the reaction in the factor C = f (α), and the exact solution is very close.