锻压技术

叶片辊轧机调整机构摩擦补偿控制策略

英文标题：Friction compensation control strategy for adjustment mechanism of blade rolling mill

作者：张瑜王立新陈洪月毛君

单位：安阳工学院

分类号：TG339

出版年,卷(期):页码：2020,45(7):148-152

摘要：

针对非线性摩擦导致叶片辊轧机轧辊的左右调整机构调整精度降低的问题，提出一种基于自适应模糊摩擦逼近补偿的全局滑模控制策略。建立了含非线性摩擦模型的辊轧机左右调整机构动力学模型，基于改进的LuGre动态摩擦模型，采用自适应模糊摩擦逼近方法实现调整机构中摩擦的在线补偿，结合全局滑模控制保证系统在响应过程中具有一定的鲁棒性。利用Matlab/Simulink软件对控制过程进行跟踪仿真，并将本文控制策略应用于现场实际中，验证了本文方法的有效性，研究结果表明：控制策略可以实现系统轨迹的高精度追踪，本文方法可以很好地实现轧辊机左右调整机构的控制。

For the problem that nonlinear friction caused the adjustment accuracy to decrease in the left and right adjustment mechanism of blade rolling mill, the global sliding mode control strategy based on adaptive fuzzy friction approximation compensation was proposed. Then, the dynamic model of left and right adjustment mechanism for rolling mill with nonlinear friction model was established, and based on the improved LuGre dynamic friction model，the online compensation of friction in the adjustment mechanism was realized by the adaptive fuzzy friction approximation method. Combined with the global sliding mode control, the system ensured to have a certain robustness in the response process, and the control process was tracked and simulated by software Matlab/Simulink. Furthermore, the control strategy was applied to the field reality to verify its validity. The results show that the control strategy realizes the high-precision tracking of system trajectories and the control of left and right adjustment mechanism of rolling mill.

基金项目：

河南省高等学校重点科研项目（19A460010

张瑜（1987-），男，博士，讲师 E-mail：z13464238735@sina.com

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