Application of Tether Technology in Space

A special issue of Aerospace (ISSN 2226-4310). This special issue belongs to the section "Astronautics & Space Science".

Deadline for manuscript submissions: 10 April 2025 | Viewed by 780

Special Issue Editors


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Guest Editor
Laboratory of Hydrodynamics, Energy and Atmospheric Environment, Ecole Centrale de Nantes, Cedex 3, 44321 Nantes, France
Interests: dynamics and control of tethered spacecraft system; model predictive control strategy; state identification and estimation; novel concept of space structure; solid mechanics and finite element method

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Guest Editor
Global Institute of Future Technology, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
Interests: asteriod exploration; orbital manoeuver using tether technology; mega-constellations maintenance; state estimation and controller design; orbital and attitude dynamics

Special Issue Information

Dear Colleagues,

Research on the space tether is increasing due to the relative maturity of on-orbit service technology and the high demand for new space tasks.

The Special Issue focuses on the application of tether technology in space, for example, the tethered spacecraft for constellation, space elevator, momentum exchange tether, electrodynamic tether system, tethered space robot, electrodynamic tethers, tethered space net, electric solar wind sail, etc. It covers precise numerical modeling methodology, state estimation and controller design, mission analysis, and experimental test validation.

Tethered spacecraft have great potential in space debris removal by electrodynamic tethers, the orbital maneuver of spacecraft, spacecraft formation flying, space elevator for the payload transfer, and electric solar wind sail for deep space exploration. The published research studies are categorized into five parts: (i) the numerical modeling techniques, including the finite element, finite difference method, spectral finite element method, and lumped mass method; (ii) unmeasured state estimation algorithm and controller design strategy for the tether-connected spacecraft, state estimation algorithm, and application of different control methods; (iii) CubeSat mission analysis related to the tether technology, for example, tether deployment and climber movement using external thruster; (iv) novel space structure using space tether as actuator and space solar power system; and (v) ground experimental validation using flat/rotating air bearing tables.

We invite you to submit papers related to the above-mentioned topics.

Dr. Gangqiang Li
Dr. Jinyu Liu
Guest Editors

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Keywords

  • space tether
  • modeling technique
  • state estimator/observer
  • controller designer
  • experiment

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Published Papers (1 paper)

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Research

12 pages, 2926 KiB  
Article
The Maintenance of Orbital States in a Floating Partial Space Elevator Using the Reinforcement Learning Method
by Weili Xu, Xuerong Yang and Gefei Shi
Aerospace 2024, 11(10), 855; https://doi.org/10.3390/aerospace11100855 - 16 Oct 2024
Viewed by 567
Abstract
A partial space elevator (PSE) is a multi-body tethered space system in which the main satellite, typically an ultra-large spacecraft or a space station in a higher orbit, is connected to a transport spacecraft in a lower orbit via a tether, maintaining orbital [...] Read more.
A partial space elevator (PSE) is a multi-body tethered space system in which the main satellite, typically an ultra-large spacecraft or a space station in a higher orbit, is connected to a transport spacecraft in a lower orbit via a tether, maintaining orbital synchronization. One or more climbers can move along the tether driven by electric power, enabling cross-orbital payload transportation between the two spacecraft. The climbers’ motion significantly alters the main satellite’s orbital states, compromising its safe and stable operation. The dynamic coupling and nonlinearity of the PSE further exacerbate this challenge. This study aims to preliminarily address this issue by proposing a new mission planning strategy. This strategy utilizes reinforcement learning (RL) to select the waiting interval between two transfer missions, thereby maintaining the main satellite’s orbital motion in a stable state. Simulation results confirm the feasibility and effectiveness of the proposed mission-based method. Full article
(This article belongs to the Special Issue Application of Tether Technology in Space)
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