Configuration maintaining control of three-body ring tethered system based on thrust compensation

被引：17
作者：
Huang, Panfeng [1 ,2 ]
Liu, Binbin [1 ,2 ]
Zhang, Fan [1 ,2 ]
机构：
[1] Northwestern Polytech Univ, Sch Astronaut, Res Ctr Intelligent Robot, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Natl Key Lab Aerosp Flight Dynam, Xian 710072, Peoples R China
来源：
ACTA ASTRONAUTICA | 2016年 / 123卷
基金：
中国国家自然科学基金;
关键词：
Space remote observation; Three-body ring tethered system; Spinning dynamics; Configuration maintaining control; COORDINATED CONTROL; SPACE ROBOT; SATELLITE FORMATIONS; MULTISTATIC SAR; CHALLENGES; DYNAMICS; MISSION;
D O I：
10.1016/j.actaastro.2016.03.005
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Space multi-tethered systems have shown broad prospects in remote observation missions. This paper mainly focuses on the dynamics and configuration maintaining control of space spinning three-body ring tethered system for such mission. Firstly, we establish the spinning dynamic model of the three-body ring tethered system considering the elasticity of the tether using Newton-Euler method, and then validate the suitability of this model by numerical simulation. Subsequently, LP (Likins-Pringle) initial equilibrium conditions for the tethered system are derived based on rigid body's equilibrium theory. Simulation results show that tether slack, snapping and interaction between the tethers exist in the three-body ring system, and its' configuration can not be maintained without control. Finally, a control strategy based on thrust compensation, namely thrust to simulate tether compression under LP initial equilibrium conditions is designed to solve the configuration maintaining control problem. Control effects are verified by numerical simulation compared with uncontrolled situation. Simulation results show that the configuration of the three-body ring tethered system could maintain under this active control strategy. (C) 2016 IAA. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：37 / 50
页数：14
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