考虑铰摩擦的太阳翼展开动力学研究  

Deployment Dynamics for Solar Wings With Joint Friction

作　　者：段柳成 李海泉[1,2] 刘晓峰 蔡国平[1,2] 

机构地区：[1]上海交通大学工程力学系 [2]海洋工程国家重点实验室(上海交通大学),上海200240

出　　处：《应用数学和力学》2014年第12期1308-1319,共12页Applied Mathematics and Mechanics

基　　金：国家自然科学基金(11132001;11272202);航空科学基金(20120157002);高等学校博士学科点专项科研基金(20110073110008);上海市教委科研重点项目(14ZZ021)~~

摘　　要：研究了空间漂浮航天器太阳翼的展开动力学与控制问题.采用单项递推组集方法建立了太阳翼展开与锁定过程的动力学模型,利用虚功率原理推导了铰摩擦对系统动力学方程的贡献,通过补充含摩擦铰物体的系统动平衡方程构建了系统封闭的动力学方程.通过与ADAMS软件仿真结果的对比,验证了所建模型的正确性.研究结果显示,所建模型能够有效地对太阳翼的展开过程进行描述,铰摩擦会对系统的动力学行为产生影响,PD控制方法能够较好地抑制太阳翼展开所引起的航天器的姿态漂移.The deployment and locking process of solar wings of the free-floating spacecrafts was studied. The dynamic model describing the deployment and locking process was established with the method of forward recursive formulation. The contribution of joint friction to the dy- namic equations was derived based on the virtual power principle. The closed dynamic equa- tions for the system was constructed through supplementation of the dynamic balance equations for the bodies with the frictional joints＇ effects. The validity of the proposed model was verified through comparison of the simulation results with those of the ADAMS software. Research re- sults show that the proposed model effectively describes the deployment and locking process of solar wings, the joint friction has considerable influence on the dynamic behavior of the muti- body system, and the PD control method substantially restrain the drift of the spacecraft atti- tude caused by the deployment of solar wings.

关 键 词：太阳翼 展开动力学 单项递推组集 摩擦 PD控制 

分 类 号：O313.7[理学—一般力学与力学基础] V412.42[理学—力学]