卫星太阳电池阵的刚-柔耦合动力学  

RIGID-FLEXIBLE COUPLING DYNAMICS OF SATELLITE SOLAR BATTERY

作　　者：刘锦阳[1] 洪嘉振[1] 

机构地区：[1]上海交通大学工程力学系,上海200030

出　　处：《空间科学学报》2004年第5期367-372,共6页Chinese Journal of Space Science

基　　金：国家自然科学基金资助项目(10372057)

摘　　要：研究了卫星太阳电池阵在多点撞击过程中的刚-柔耦合动力学问题.基于Jourdain速度变分原理和单向递推组集方法,建立了柔性多体系统的动力学模型.用Hertz撞击法则建立了撞击力和撞击处的局部变形关系,分别用刚体模型和柔性体模型仿真计算了太阳电池阵的撞击力、撞击时间,揭示了变形运动和大范围运动的相互耦合作用.In this paper, the rigid-flexible coupling dynamics of satellite solar battery with multi point contact-impact is investigated. Based on Jourdain's variational principle and forward recursive formulation, the dynamic model of flexible multibody systems with contact impact is established. According to Hertz's impact law, the relation between the impact force and local deformation is obtained. The contact-impact of satellite plates is simulated by using rigid model and flexible model, respectively. The time histories of the impact force, impact time are calculated to reveal the coupling of the large overall motion and deformation.

关 键 词：卫星太阳电池阵 多点撞击 刚-柔耦合动力学 Hertz撞击法 局部变形 

分 类 号：V442[航空宇航科学与技术—飞行器设计]