【摘要】 为减小收、放卷料时的张力波动,提出用一种新型旋转式磁流变阻尼器作为控制元件的解决方案.确定了该阻尼器的结构,建立了阻尼器的阻尼力矩模型.模型仿真表明:阻尼力矩随电流增大呈指数规律增加,电流较小时近似为线性关系,而在电流大于5A时饱和;阻尼力矩与转轴角速度成正比.提出采用模糊逻辑方法对阻尼器的阻尼力矩进行控制,从而控制张力波动.确定了相应的模糊输入和输出变量,得出模糊控制规则.仿真结果表明:旋转式磁流变阻尼器应用于张力的模糊控制,能够降低张力波动的幅值.更多还原

【Abstract】 In order to reduce rolling tension fluctuation, a new type of magnetorheological damper is proposed. The structure of the damper is determined, and a damping torque model is established. According to the simulation results, the damping torque increases exponentially with the current increase. In case of small current, the damping torque increases linearly, and when the current is greater than 5A, the damping torque becomes saturated. The damping torque is proportional to rotational speed. A fuzzy logic method is put forward to control tension fluctuation by controlling the damping torque. The fuzzy input and output variables are determined, and the fuzzy control regulation is obtained. The simulation results show that the tension fluctuation amplitude can be reduced by applying rotary magnetorheological damper to tension fuzzy control.更多还原