A 2-DOF drag-free control ground simulation system based on Stewart platform
Copyright © 2024 ISA. Published by Elsevier Ltd. All rights reserved..
Space-based gravitational wave detection missions use multiple satellites to form a very large scale Michelson laser interferometer in space. This requires extremely high precision displacement measurements at the picometer level between test masses even millions of kilometers apart. Drag-free control is a key technology to ensure the ultra-static and ultra-stable space experiment platform for space-based gravitational wave detection. This paper proposes an innovative ground simulation scheme for drag-free control principle based on the Stewart platform. The kinematics and dynamics modeling of the Stewart platform used in the experiment is presented. A drag-free ground simulation experimental equipment is designed and built. A two-degree-of-freedom (2-DOF) drag-free controller is designed based on the H∞ loop shaping algorithm which outperforms a PID controller in Simulink simulation. A semi-physical simulation experiment is conducted to verify the controller designed using rapid control prototyping technology. The experimental results show that the control performance reaches the limit accuracy of the hardware device, thus verifying the effectiveness of the drag-free control algorithm.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:146 |
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| Enthalten in: |
ISA transactions - 146(2024) vom: 21. März, Seite 528-540 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lin, Jueqi [VerfasserIn] |
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| Links: |
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| Themen: |
Drag-free |
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| Anmerkungen: |
Date Revised 21.03.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1016/j.isatra.2024.01.010 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM367189887 |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Copyright © 2024 ISA. Published by Elsevier Ltd. All rights reserved. | ||
| 520 | |a Space-based gravitational wave detection missions use multiple satellites to form a very large scale Michelson laser interferometer in space. This requires extremely high precision displacement measurements at the picometer level between test masses even millions of kilometers apart. Drag-free control is a key technology to ensure the ultra-static and ultra-stable space experiment platform for space-based gravitational wave detection. This paper proposes an innovative ground simulation scheme for drag-free control principle based on the Stewart platform. The kinematics and dynamics modeling of the Stewart platform used in the experiment is presented. A drag-free ground simulation experimental equipment is designed and built. A two-degree-of-freedom (2-DOF) drag-free controller is designed based on the H∞ loop shaping algorithm which outperforms a PID controller in Simulink simulation. A semi-physical simulation experiment is conducted to verify the controller designed using rapid control prototyping technology. The experimental results show that the control performance reaches the limit accuracy of the hardware device, thus verifying the effectiveness of the drag-free control algorithm | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Drag-free | |
| 650 | 4 | |a Ground simulation | |
| 650 | 4 | |a H(∞) loop shaping | |
| 650 | 4 | |a Stewart platform | |
| 700 | 1 | |a Lian, Junxiang |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Guoying |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Hongyin |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Chi |e verfasserin |4 aut | |
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