移动双柔性梁系统的振动主动控制

Active Vibration Control of a Translational Double Flexible Beam System

以弹簧连接移动双柔性梁系统为实验对象,研究多柔体系统的振动特性和振动主动控制问题。针对移动双柔性梁系统存在建模的复杂性和耦合非线性等问题,基于系统的动态线性化数据模型,研究无模型自适应控制算法在多柔体振动主动控制领域的应用。设计并搭建移动双柔性梁实验平台,进行基于压电驱动器和伺服电机混合控制的双柔性梁振动抑制实验研究。实验结果表明,无模型自适应控制器可实现对振动的快速抑制。

A spring connected translational double flexible beam system is designed to study the vibration charac⁃teristics and active vibration control methods of flexible multibody systems.In view of the complexity of model⁃ing and coupling nonlinearity of the translational double flexible beam system,model-free adaptive control algo⁃rithm is adopted to suppress the vibration of the flexible multibody system based on the dynamic linearization da⁃ta model.Subsequently,an experimental setup is constructed to verify the adopted method.Both piezoelectric actuators and servomotors are conducted to perform hybrid control experiments on vibration suppression of dou⁃ble flexible beam system.Experimental results demonstrate that the adopted model-free adaptive controller can suppress the vibration near the equilibrium point effectively.