航天器上太阳帆板这种悬臂外伸薄板结构的挠性附件,存在有扰动条件下引起的振动,可采用压电智能结构对悬臂板进行主动振动控制。文章对设计的挠性悬臂板系统进行系统辨识,得到板系统的前三阶模态频率及阻尼比,并采用PD控制和PPF控制算法对板的前三阶模态(包括弯曲模态和扭转模态)进行主动振动控制。试验结果表明,采用压电智能结构可以抑制挠性悬臂板的振动,效果明显。 Spacecraft solar panels on the cantilever extension of the flexible structure of the annex, there are disturbances caused by vibration conditions can be used piezoelectric smart structure of the cantilever plate active vibration control. In this paper, the system identification of the flexible cantilever system is carried out, and the first three modes’ modal frequencies and damping ratios of the slab system are obtained. The first three modes of the plate, including bending mode and torsion Modal) for active vibration control. The experimental results show that the use of piezoelectric smart structure can inhibit the vibration of flexible cantilever plate, the effect is obvious.