Orbital radius keeping of floating partial space elevator in cargo transposition  

作　　者：Gefei Shi Zheng H.Zhu 

机构地区：[1]School of Aeronautics and Astronautics,Sun Yat-sen University,Guangzhou,510275,China [2]Department of Mechanical Engineering,York University,4700 Keele Street,Toronto,Ontario,M3J 1P3,Canada

出　　处：《Astrodynamics》2023年第3期259-269,共11页航天动力学（英文）

基　　金：This work was funded by the National Natural Science Foundation of China(12102487);Guangdong Basic and Applied Basic Research Foundation(2019A1515111056);Discovery Grant(RGPIN-2018-05991)of the Natural Sciences and Engineering Research Council of Canada.

摘　　要：A floating partial space elevator(PSE)is a PSE with a floating main satellite.This work aims to keep the orbital radius of the main satellite of a floating PSE in cargo transposition without the use of thrusts.A six-degree-of-freedom two-piece dumbbell model was built to analyze the dynamics of a floating PSE.By adjusting the climber’s moving speed and rolling of the end body,the main satellite’s orbital radius can be kept.A novel control strategy using a proportional shrinking horizon model predictive control law containing a self-stability modified law is proposed to stabilize both the orbital and libration states to regulate the speed of only the climber.Simulation results validated the proposed control strategy.The system provides a successful approach to the desired equilibrium by the end of the transposition.

关 键 词：floating partial space elevator(PSE) self-stability modified law shrinking horizon model predictive control 

分 类 号：V47[航空宇航科学与技术—飞行器设计]