北京航空航天大学学报 ›› 2014, Vol. 40 ›› Issue (4): 479-485.doi: 10.13700/j.bh.1001-5965.2013.0316

• 论文 • 上一篇    下一篇

基于FRA精细模型的航天器三轴姿态稳定控制

关宏, 徐世杰   

  1. 北京航空航天大学 宇航学院, 北京 100191
  • 收稿日期:2013-05-31 出版日期:2014-04-20 发布日期:2014-05-07

Attitude dynamics and control of spacecraft with fluidic ring actuator based on the refined model

Guan Hong, Xu Shijie   

  1. School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2013-05-31 Online:2014-04-20 Published:2014-05-07

摘要: 针对非线性影响因素对FRA控制精度的影响,分析了黏性对射流动量控制(FRA,Fluidic Ring Actuator)模型精度的影响以及摩擦对压力泵控制精度的影响.对前者,推导出黏性对FRA角动量传递的影响方程,得到附面层动量损失厚度模型以及管流动量损失模型;对后者,设计了摩擦补偿控制律,以改善指令跟踪精度.将上述两部分模型组合到FRA动力学模型中,得到了适用于高精度姿态控制的精细FRA动力学与控制模型.设计了姿态控制律并进行了稳定性证明.仿真结果验证了FRA精细模型对提高姿态控制精度的有效性.

Abstract: The influence of nonlinear disturbances to model's precision and control accuracy were studied after considering the viscous of the flow flied and the friction in the pump control system. For the former, the momentum loss caused by the viscous of flow was studied. The equivalent momentum loss depth in boundary layer and the momentum loss model of fully developed flow in curved rectangular tubes were obtained. For the latter, feedback compensation law of friction loss was designed under the consideration of friction nonlinearity influence, which improves the performance of pump. The precise dynamic and control models of fluidic ring actuator (FRA) for the high accuracy attitude control missions were deduced by adding the above two nonlinear feedback models to FRA dynamic model functions.

中图分类号: 


版权所有 © 《北京航空航天大学学报》编辑部
通讯地址:北京市海淀区学院路37号 北京航空航天大学学报编辑部 邮编:100191 E-mail:jbuaa@buaa.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发