摘要
太阳能帆板是给航天器提供能源的重要装置,以压电陶瓷为做动器的智能结构可以有效地抑制卫星太阳能帆板在太空中的振动.基于Hamilton变分原理,推导得到含多个压电陶瓷片的太阳能帆板模型的振动方程.制作了太阳能帆板振动主动控制实验系统,并对太阳能帆板模型进行振动主动控制实验.实验结果表明该控制系统可大幅度降低卫星太阳能帆板的振动,延长其使用寿命.
Solar panel substrate is the important energy provider for the spacecraft, and its vibration can be effectively suppressed by the use of piezoelectric (PZT) actuators. Based on the extended Hamilton principle, the vibration equation of the solar panel substrate modal containing several PZT actuators is derived. An experimental system for vibration active control is designed according to the vibration equation, and the active vibration control experiment is performed. The experimental results show that the vibration of the solar panel substrate is reduced significantly and the life of the solar panel substrate is prolonged.
出处
《实验力学》
CSCD
北大核心
2002年第4期477-482,共6页
Journal of Experimental Mechanics
基金
国家863项目(863-2-14-1-13)
关键词
压电陶瓷
振动主动控制
太阳能帆板
智能结构
PZT
active vibration control
solar panel substrate
intelligent structure
