南京信息工程大学学报
南京信息工程大學學報
남경신식공정대학학보
JOURNAL OF NANJING UNIVERSITY OF INFORMATION SCIENCE & TECHNOLOGY
2015年
2期
133-136
,共4页
内力编队卫星%姿轨耦合%六自由度%伪谱法
內力編隊衛星%姿軌耦閤%六自由度%偽譜法
내력편대위성%자궤우합%륙자유도%위보법
satellite formation with internal forces%coupling of relative position and attitude%6-dof ( degree of free-dom)%pseudospectral method
基于内力的卫星编队飞行凭借良好的性能正日益受到重视，但由于该类编队的控制力对卫星间的相对位置和相对姿态均高度敏感，并且控制力和控制力矩之间存在耦合，给动力学建模带来了很大的挑战。首先，建立了六自由度的内力编队姿轨耦合动力学模型，该动力学模型利用了控制力和控制力矩的耦合效应，可以同时针对编队卫星的相对位置和相应姿态设计相应的控制律，从而实现编队的六自由度协同控制。最后，通过采用伪谱法求解编队构型的重构问题，对该动力学模型进行了验证。
基于內力的衛星編隊飛行憑藉良好的性能正日益受到重視，但由于該類編隊的控製力對衛星間的相對位置和相對姿態均高度敏感，併且控製力和控製力矩之間存在耦閤，給動力學建模帶來瞭很大的挑戰。首先，建立瞭六自由度的內力編隊姿軌耦閤動力學模型，該動力學模型利用瞭控製力和控製力矩的耦閤效應，可以同時針對編隊衛星的相對位置和相應姿態設計相應的控製律，從而實現編隊的六自由度協同控製。最後，通過採用偽譜法求解編隊構型的重構問題，對該動力學模型進行瞭驗證。
기우내력적위성편대비행빙차량호적성능정일익수도중시，단유우해류편대적공제력대위성간적상대위치화상대자태균고도민감，병차공제력화공제력구지간존재우합，급동역학건모대래료흔대적도전。수선，건립료륙자유도적내력편대자궤우합동역학모형，해동역학모형이용료공제력화공제력구적우합효응，가이동시침대편대위성적상대위치화상응자태설계상응적공제률，종이실현편대적륙자유도협동공제。최후，통과채용위보법구해편대구형적중구문제，대해동역학모형진행료험증。
Satellite formation flying with internal forces has attracted great attention for its high performance. How?ever,the control force is highly sensitive to the relative position and relative attitude between satellites,and coupling effect exists between control forces and control torques,both of which pose challenges to building the dynamic model for formations with internal forces.A 6?dof (degree of freedom) relative translational and rotational dynamic model is established in this paper,considering the coupling between control forces and control torques.The cooperative control of relative states between the satellites is realized by designing the control law for both relative position and relative attitude. Finally, the dynamic model is testified through the simulation of formation reconfiguration using the pseudospectral method.
