起重机金属结构动力响应具有随时间变化的变质量、变刚度、变阻尼的时变系统特征。时变系统振动分析是普通有限元计算分析软件无法解决的。本文应用时变系统分析理论 ,建立起重机计算模型的运动方程 ,编制了相应的动力计算软件 ,计算了岸边集装箱起重机在小车运行过程中产生的时变响应 ,具有较高的实用性 The dynamic response of crane’s metal structure has the characteristics of time-varying system with variable mass, variable stiffness and variable damping as time goes by. Vibration analysis of time-varying system is a common finite element analysis software can not be solved. In this paper, the time-varying system analysis theory is applied to establish the equations of motion of the crane’s calculation model. The corresponding power calculation software is compiled and the time response of the container crane on the shore is calculated. It has high practicability