门式起重机运动过程中负载摆动对系统的影响分析

摘要

In the moving process,the gantry crane will bring great inertia load,and it will make the load swing when speed up or speed down,so the periodic kinetic power is produced on the horizontal direction of the whole system. According to the kinetic a-nalysis of the swinging load,the effect of the swinging load on the system and variety of the tensile force of the wirerope were studied, so the variety role of the horizontal load of the system caused by swinging load was gotten. According to the simulation results in the Sinmulink,it is shown that the theory method is feasible.%　　门式起重机在运行过程中会产生较大的惯性载荷，在启动和制动的过程中会导致负载的摆动，从而在整个系统水平方向上形成周期性的动力学激励。通过对负载摆动的动态过程进行动力学分析，研究负载的摆动过程对系统的影响，导出了钢丝绳在负载摆动过程中张力的变化，进而得到负载在摆动过程中对系统产生的水平载荷的变化规律；在Simulink环境中对系统进行建模仿真，通过对比仿真结果和实验结果证明了该理论方法的可行性。