Analysis of the Influence of Tether–Soil Interaction on the Attachment Trajectory of Small Celestial Body Detector
Multi-tethered spacecraft formation refers to a group of spacecraft that are connected by tethers. These spacecraft work together to perform tasks, such as encircling and capturing small celestial bodies. When the multi-tethered spacecraft formation is in the process of encircling and capturing smal...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/12/7/596 |
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| author | Yuyan Pei Yu Yang Guoning Wei Yanchen Li Hao Tian Yang Zhao |
| author_facet | Yuyan Pei Yu Yang Guoning Wei Yanchen Li Hao Tian Yang Zhao |
| author_sort | Yuyan Pei |
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| description | Multi-tethered spacecraft formation refers to a group of spacecraft that are connected by tethers. These spacecraft work together to perform tasks, such as encircling and capturing small celestial bodies. When the multi-tethered spacecraft formation is in the process of encircling and capturing small celestial bodies, there is a significant risk of the tethers colliding with the soil (or surface material) of the small celestial body. Such a collision can affect the trajectory of the small celestial body detector. To address this issue, a coupled dynamic model has been proposed. This model takes the interaction between the tethers and the soil of the small celestial body into account. The discrete element method is used to establish the asteroid soil model, and the multi-body-tethered spacecraft system is simplified into a two-spacecraft system. The detector model is established by using the dual quaternion, and the tether model is established by using the chain rod model combined with the finite element method. Finally, a multi-condition simulation test is carried out. The results show that the influence of tether–soil coupling on the trajectory of the detector is mainly as follows: the influence of tether–soil interaction on the trajectory of the detector is mainly reflected in the displacement of the detector along the axial direction of the tether. |
| format | Article |
| id | doaj-art-76c8238b6eff4fd8b13a22dd668748d0 |
| institution | Kabale University |
| issn | 2226-4310 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj-art-76c8238b6eff4fd8b13a22dd668748d02025-08-20T03:55:49ZengMDPI AGAerospace2226-43102025-06-0112759610.3390/aerospace12070596Analysis of the Influence of Tether–Soil Interaction on the Attachment Trajectory of Small Celestial Body DetectorYuyan Pei0Yu Yang1Guoning Wei2Yanchen Li3Hao Tian4Yang Zhao5School of Astronautics, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Astronautics, Harbin Institute of Technology, Harbin 150001, ChinaShanghai Xiaoyuan Innovation Center, Shanghai 201109, ChinaShanghai Xiaoyuan Innovation Center, Shanghai 201109, ChinaSchool of Astronautics, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Astronautics, Harbin Institute of Technology, Harbin 150001, ChinaMulti-tethered spacecraft formation refers to a group of spacecraft that are connected by tethers. These spacecraft work together to perform tasks, such as encircling and capturing small celestial bodies. When the multi-tethered spacecraft formation is in the process of encircling and capturing small celestial bodies, there is a significant risk of the tethers colliding with the soil (or surface material) of the small celestial body. Such a collision can affect the trajectory of the small celestial body detector. To address this issue, a coupled dynamic model has been proposed. This model takes the interaction between the tethers and the soil of the small celestial body into account. The discrete element method is used to establish the asteroid soil model, and the multi-body-tethered spacecraft system is simplified into a two-spacecraft system. The detector model is established by using the dual quaternion, and the tether model is established by using the chain rod model combined with the finite element method. Finally, a multi-condition simulation test is carried out. The results show that the influence of tether–soil coupling on the trajectory of the detector is mainly as follows: the influence of tether–soil interaction on the trajectory of the detector is mainly reflected in the displacement of the detector along the axial direction of the tether.https://www.mdpi.com/2226-4310/12/7/596small celestial body explorationmulti-tethered spacecraft formationtether dynamicssoil dynamicstrajectory analysis |
| spellingShingle | Yuyan Pei Yu Yang Guoning Wei Yanchen Li Hao Tian Yang Zhao Analysis of the Influence of Tether–Soil Interaction on the Attachment Trajectory of Small Celestial Body Detector Aerospace small celestial body exploration multi-tethered spacecraft formation tether dynamics soil dynamics trajectory analysis |
| title | Analysis of the Influence of Tether–Soil Interaction on the Attachment Trajectory of Small Celestial Body Detector |
| title_full | Analysis of the Influence of Tether–Soil Interaction on the Attachment Trajectory of Small Celestial Body Detector |
| title_fullStr | Analysis of the Influence of Tether–Soil Interaction on the Attachment Trajectory of Small Celestial Body Detector |
| title_full_unstemmed | Analysis of the Influence of Tether–Soil Interaction on the Attachment Trajectory of Small Celestial Body Detector |
| title_short | Analysis of the Influence of Tether–Soil Interaction on the Attachment Trajectory of Small Celestial Body Detector |
| title_sort | analysis of the influence of tether soil interaction on the attachment trajectory of small celestial body detector |
| topic | small celestial body exploration multi-tethered spacecraft formation tether dynamics soil dynamics trajectory analysis |
| url | https://www.mdpi.com/2226-4310/12/7/596 |
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