Dynamic analysis of the tethered satellite system considering uncertain but bounded parameters  

作　　者：Xin Jiang Zhengfeng Bai 

机构地区：[1]School of Astronautics,Harbin Institute of Technology,Harbin,150001,China [2]Department of Mechanical Engineering,Harbin Institute of Technology,Weihai,264209,China

出　　处：《Defence Technology（防务技术）》2024年第12期116-124,共9页Defence Technology

基　　金：supported by the National Natural Science Foundation of China(Grant No.U21B2075)。

摘　　要：Dynamic analysis of the tethered satellite system(TSS)can provide a fundamental guideline to the evaluation of performance and robust design of the system examined.Uncertainties inherited with the parameters would induce unexpected variation of the response and deteriorate the reliability of the system.In this work,the effect of uncertain mass of the satellites on the deployment and retrieval dynamics of the TSS is investigated.First the interval mode is employed to take the variation of mass of satellite into account in the processes of deployment and retrieval.Then,the Chebyshev interval method is used to obtain the lower and upper response bounds of the TSS.To achieve a smooth and reliable implementation of deployment and retrieval,the nonlinear programming based on the Gauss pseudospectral method is adopted to obtain optimal trajectory of tether velocity.Numerical results show that the uncertainties of mass of the satellites have a distinct influence on the response of tether tension in the processes of deployment and retrieval.

关 键 词：Dynamic analysis Interval uncertainty Tethered satellite Deployment and retrieval 

分 类 号：V474[航空宇航科学与技术—飞行器设计]