为研究提升机盘形闸制动系统制动过程的动态性能,建立多绳缠绕式提升机制动系统动力学ADAMS模型,并将油压滞回仿真结果与实验测试结果进行对比验证,同时结合以钢丝绳连续弹性体模型为基础建立的制动负载模型,完成对盘形闸制动系统的动力学建模.建立盘形闸制动系统的液压系统仿真模型,并在Simulink中建立相应的二级制动及恒减速制动控制策略模型.以Simulink为集成环境,采用多软件联合仿真方式建立盘形闸制动系统的机电液一体化仿真系统.运用该系统对提升机重载下放超速工况下的二级制动和恒减速制动性能进行仿真研究.研究结果表明:设计的制动系统机电液各项运行参数合理有效,恒减速制动比二级制动的动态性能更平稳.%To study the disc braking system dynamic performance during braking, multi-body dynamic model of the multi-rope winding hoist was established in ADAMS and verified by comparing the hydraulic hysteresis simulation results with the experimental results. Combined with the braking load based on the continuous elastic model of the wire rope, the hoisting system dynamic model was established in Simulink. Meanwhile, the hydraulic system model was established and the control strategy model of two-stage braking and constant decelerating braking were established in Simulink. Using the multi-software co-simulation technology, the mechanical-electrical-hydraulic simulation system of the disc braking system was formulated with Simulink as integrated environment. The dynamic performance of two-stage braking and constant decelerating braking at the heavy dropping overspeed was studied based on the simulation system. The results show that design operation parameters of the mechanical-electrical-hydraulic system are correct and effective, and the dynamic performance of constant decelerating braking is more stable than that of the two-stage braking.
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