Design and analysis of a spiral space deployable-foldable mechanism with single degree of freedom
ObjectiveAiming to meet the requirements of high-performance deployable-foldable structures in aerospace and related fields, a single degree-of-freedom spiral deployable-foldable mechanism was developed to achieve structural stability, high stowage efficiency, and ease of control.MethodsInspired by...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2025-07-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.07.007 |
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| Summary: | ObjectiveAiming to meet the requirements of high-performance deployable-foldable structures in aerospace and related fields, a single degree-of-freedom spiral deployable-foldable mechanism was developed to achieve structural stability, high stowage efficiency, and ease of control.MethodsInspired by the curling and extending behaviour of the elephants’ trunk, a mechanism was designed to fold into a spiral shape and unfold into a linear configuration, and driven by telescopic rods. The positions of the module endpoints were analysed, and a kinematic model was established to derive the relation between the displacement and the rotation angles. The trajectories of module endpoints were computed numerically to extract the boundary of the deployable space. The deployable area was estimated using the cubic spline interpolation and the Monte Carlo method. Motion simulations were conducted to evaluate potential interference between modules.ResultsSimulation results show that no interference occurrs between modules during deployment, and the mechanism maintains the stable operation. The boundary of the deployable space is clearly defined, and the structure exhibits high storage efficiency, satisfying spatial performance requirements. The proposed mechanism demonstrates excellent deployability and deployment stability, and may serve as valuable reference for the design and optimisation of spiral deployable-foldable structures. |
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| ISSN: | 1004-2539 |