Optimal deployment of spin-stabilized tethered formations with continuous thrusters

作     者：Guang, Zhai Bi Xingzi Bin, Liang 

作者机构：Beijing Inst Technol Aerosp Engn Sch Beijing 100081 Peoples R China Tsinghua Univ Tsinghua Natl Lab Informat Sci & Technol Beijing 100084 Peoples R China 

出 版 物：《NONLINEAR DYNAMICS》 (非线性动力学)

年 卷 期：2019年第95卷第3期

页      面：2143-2162页

核心收录：

学科分类：08[工学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：National Natural Science Foundation of China 

主　　题：Spin-stabilized tethered formation Optimal deployment Continuous thruster Pseudospectral method 

摘      要：This paper addresses issues relevant to thruster-aided deployment of spin-stabilized tethered formations in a circular orbit. The dynamics of the tethered formation are first established by treating the parent satellite as a finite-sized body with respect to its spinning motion. To achieve the minimum-power trajectories for formation deployment, the optimal deployment problem is analytically formulated using Pontryagin s minimum principle. Physical constraints on tether tension, thrust amplitude, and libration angle are also considered. To handle nonlinearities, the problem is solved numerically using a direct method based on the Gauss pseudospectral approach, in which the optimal deployment profiles are obtained and all of the solutions are proven to be within a feasible range. Finally, based on a variety of simulations, the optimal solution s sensitivity to certain parameters is also analyzed.