Dynamic Modeling and Analysis of Spacecraft with Multiple Large Flexible Structures
An analytical dynamic model is presented for a spacecraft with multiple large flexible structures. Based on the partial differential equations (PDEs) of the motion of the solar panel and deployable arm, the governing equations of the main-body and deployable antenna and the boundary conditions at ea...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Actuators |
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| Online Access: | https://www.mdpi.com/2076-0825/12/7/286 |
| _version_ | 1797590703370403840 |
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| author | Jin Wei Wei Liu Jia Liu Tao Yu |
| author_facet | Jin Wei Wei Liu Jia Liu Tao Yu |
| author_sort | Jin Wei |
| collection | DOAJ |
| description | An analytical dynamic model is presented for a spacecraft with multiple large flexible structures. Based on the partial differential equations (PDEs) of the motion of the solar panel and deployable arm, the governing equations of the main-body and deployable antenna and the boundary conditions at each end point are used to obtain the frequency and mode shapes of the system. Then, the ordinary differential equations (ODEs) of the system can be obtained from the orthogonality relations and mode shape. The influence of the deployable antenna on the frequencies and mode shapes of the spacecraft is investigated. The frequency veering and mode interchanged phenomenon are observed with the variation of the diameter of the deployable antenna. Using the ODEs, the dynamic responses of the spacecraft are calculated to study the influence of the control torque on the attitude and position of the antenna in the attitude maneuver. |
| first_indexed | 2024-03-11T01:24:18Z |
| format | Article |
| id | doaj.art-33278ac60fed458fadaea1e5b11397bb |
| institution | Directory Open Access Journal |
| issn | 2076-0825 |
| language | English |
| last_indexed | 2024-03-11T01:24:18Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Actuators |
| spelling | doaj.art-33278ac60fed458fadaea1e5b11397bb2023-11-18T17:49:41ZengMDPI AGActuators2076-08252023-07-0112728610.3390/act12070286Dynamic Modeling and Analysis of Spacecraft with Multiple Large Flexible StructuresJin Wei0Wei Liu1Jia Liu2Tao Yu3State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaSchool of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, ChinaSchool of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, ChinaSchool of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, ChinaAn analytical dynamic model is presented for a spacecraft with multiple large flexible structures. Based on the partial differential equations (PDEs) of the motion of the solar panel and deployable arm, the governing equations of the main-body and deployable antenna and the boundary conditions at each end point are used to obtain the frequency and mode shapes of the system. Then, the ordinary differential equations (ODEs) of the system can be obtained from the orthogonality relations and mode shape. The influence of the deployable antenna on the frequencies and mode shapes of the spacecraft is investigated. The frequency veering and mode interchanged phenomenon are observed with the variation of the diameter of the deployable antenna. Using the ODEs, the dynamic responses of the spacecraft are calculated to study the influence of the control torque on the attitude and position of the antenna in the attitude maneuver.https://www.mdpi.com/2076-0825/12/7/286flexible structuresflexible spacecraftglobal mode shapesorthogonality relationsanalytical dynamic modeldynamical characteristic |
| spellingShingle | Jin Wei Wei Liu Jia Liu Tao Yu Dynamic Modeling and Analysis of Spacecraft with Multiple Large Flexible Structures Actuators flexible structures flexible spacecraft global mode shapes orthogonality relations analytical dynamic model dynamical characteristic |
| title | Dynamic Modeling and Analysis of Spacecraft with Multiple Large Flexible Structures |
| title_full | Dynamic Modeling and Analysis of Spacecraft with Multiple Large Flexible Structures |
| title_fullStr | Dynamic Modeling and Analysis of Spacecraft with Multiple Large Flexible Structures |
| title_full_unstemmed | Dynamic Modeling and Analysis of Spacecraft with Multiple Large Flexible Structures |
| title_short | Dynamic Modeling and Analysis of Spacecraft with Multiple Large Flexible Structures |
| title_sort | dynamic modeling and analysis of spacecraft with multiple large flexible structures |
| topic | flexible structures flexible spacecraft global mode shapes orthogonality relations analytical dynamic model dynamical characteristic |
| url | https://www.mdpi.com/2076-0825/12/7/286 |
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