Multi-Objective optimization for stable and efficient cargo transportation of partial space elevator  

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]Shenzhen Key Laboratory of Intelligent Microsatellite Constellation,Shenzhen 518107,China [3]Department of Mechanical Engineering,York University,4700 Keele Street,Toronto,Canada

出　　处：《Defence Technology(防务技术)》2025年第2期17-29,共13页Defence Technology

基　　金：funded by the National Natural Science Foundation of China(12102487);Basic and Applied Basic Research Foundation of Guangdong Province,China(2023A1515012339);Shenzhen Science and Technology Program(ZDSYS20210623091808026);the Discovery Grant(RGPIN-2024-06290)of the Natural Sciences and Engineering Research Council of Canada。

摘　　要：This paper proposed a new libration decoupling analytical speed function(LD-ASF)in lieu of the classic analytical speed function to control the climber's speed along a partial space elevator to improve libration stability in cargo transportation.The LD-ASF is further optimized for payload transportation efficiency by a novel coordinate game theory to balance competing control objectives among payload transport speed,stable end body's libration,and overall control input via model predictive control.The transfer period is divided into several sections to reduce computational burden.The validity and efficacy of the proposed LD-ASF and coordinate game-based model predictive control are demonstrated by computer simulation.Numerical results reveal that the optimized LD-ASF results in higher transportation speed,stable end body's libration,lower thrust fuel consumption,and more flexible optimization space than the classic analytical speed function.

关 键 词：Partial space elevator Stable transportation Libration decoupling analytical speed function Coordinate game Model predictive control Pareto optimization 

分 类 号：O17[理学—数学]