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大型转炉的扭振极易造成传动齿轮的破坏,为解决转炉启停时出现的扭振问题,以刚柔耦合多体动力学理论为基础,利用多体动力学仿真软件Recur Dyn和有限元分析软件ANSYS建立了针对大型转炉扭振的动力学仿真分析模型;并对所建立的动力学模型进行了多体动力学仿真研究,获得不同停车时间、转动副阻尼和停车方式等条件下转炉系统的振动频率和振动幅值的变化规律。研究结果表明:通过增大停车时间和转动阻尼,以及控制停车速度曲线可以有效的减小转炉的扭振振幅。该研究结果为解决转炉停车时的振动问题提供理论依据。
The torsional vibration of large converter can easily lead to the destruction of transmission gear. Based on the theory of rigid-flexible multi-body dynamics, the multi-body dynamics simulation software Recur Dyn and finite element analysis Software ANSYS established a dynamic simulation analysis model for the torsional vibration of a large converter. The dynamic model of the converter was studied by multi-body dynamics simulation, and the effects of different parking time, sub-damping and parking mode on converter system Vibration frequency and vibration amplitude changes. The results show that the torsional vibration amplitude of the converter can be effectively reduced by increasing the stopping time and damping, and controlling the stopping speed curve. The results of this study provide a theoretical basis for solving the vibration problem during the stop of converter.