提升系统钢丝绳纵向振动的控制研究

Control Research on Longitudinal Vibration of Rope Hoisting Systems

以矿井提升系统中柔性钢丝绳的纵向振动为研究对象,考虑钢丝绳刚性运动与变形运动的相互影响,应用Hamliton原理建立变长度提升系统钢丝绳的运动方程。同时,设计出在预定加速时间内,既使系统达到预定的运动状态,又使其振动大幅度减小的变结构控制算法。仿真结果表明,这种方法明显地降低了系统的振动幅度,为矿井提升系统钢丝绳纵向振动特性的进一步分析提供了依据。

Aiming at the longitudinal vibration of rope hoisting systems,the governing equations were developed employing the energy method and Largrange method considering mutual influences between rigid motion and rope deformation.At the same time, designing a variable structure control algorithm,not only makes the system reach the predetermined state of motion,but aslo reduces the vibration of the system significantly in the acceleration of the scheduled time.The simulation results show that this method reduced the vibration amplitude of the system very obviously, and provides reference to further study on the longitudinal vibration characteristics of the wire rope hoisting systems.