Abstract: Compared with the rigid-flexible coupling dynamic models that had been constructed in other published papers, comprehension about the equation of rotating flexible beam based on the method of small element is presented, and some fuzzy understanding are clarified.Numerical simulations on the vibration control of rotating flexible beam with positive position feedback are carried out. More over, using piezoelectric ceramic as sensors and actuators, several experiments are performed, their results are shown and discussed.

Key words: rigid-flexible coupling system, rotating flexible beam, active vibration control, positive position feedback, piezoelectric ceramic

摘要： 在综合比较已有文献所建立的刚体-柔性附件耦合系统动力学模型的基础上，以微元法为根据提出对旋转柔性梁运动方程中各项的理解，澄清了某些文献中模糊的认识。利用位置正反馈控制律，对旋转耦合系统中柔性梁的振动控制进行了数值仿真。并进一步利用压电陶瓷作为传感器和致动器，从实验上探讨旋转柔性梁的振动控制并给出了初步的实验结果及分析。

关键词: 刚柔耦合系统, 旋转柔性梁, 振动主动控制, 位置正反馈, 压电陶瓷