摘要
以垂尾为研究对象,根据模态分析结果,将压电驱动和传感元件分为两组,并以对称方式嵌入到垂尾中,为了解决驱动器的输出与参考信号相耦合导致的不稳定问题,提出一种解耦的自适应前馈控制算法,设计了能够主动减振的垂尾系统,进而降低了垂尾振动引起的疲劳损伤.实验结果表明,该垂尾能够较好地抑制飞行过程中的振动.
This paper investigated the vibration suppression system for vertical tail. Firstly, the actuators and sensors were divided into two groups according to the results of modal tests, and attached to the opposite side of vertical tail with a mirror image. To overcome the unstable problem caused by the coupling of output signal and reference signal, a feed forward decoupling algorithm was proposed. Finally a smart vertical tail was designed to reduce the fatigue damage through suppressing its vibration. The experimental results showed that the vibration response of vertical tail was suppressed significantly.
出处
《力学学报》
EI
CSCD
北大核心
2009年第4期603-608,共6页
Chinese Journal of Theoretical and Applied Mechanics
基金
国家自然科学基金重点资助项目(50830201)
supported by the National Natural Science Foundation of China(50830201)
关键词
飞机垂尾
压电智能结构
振动主动控制
自适应算法
vertical tail, piezoelectric smart structures, active vibration control, adaptive algorithm
