A rope-driven deployable truss module for on-orbit assembly

By using rope-driven deployment of the truss module, the problems of large spacecraft structure and launch vehicle volume limitations were solved, achieving efficient and reliable space utilization and deployment control.

CN117262240BActive Publication Date: 2026-04-03NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Patent Information

Application Number
CN202311286841.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-10-07
Publication Date
2026-04-03
Estimated Expiration
2043-10-07

AI Technical Summary

Technical Problem

In existing technologies, the development of large-scale spacecraft structures is limited by the volume of launch vehicles, and existing space deployment mechanisms have reliability and cost issues.

Method used

The truss module is deployed by rope, and the folding and unfolding of the truss are achieved by controlling the telescopic rods with ropes. Combined with locking and timing mechanisms, the controllability and reliability of the unfolding are ensured.

Benefits of technology

It improves space utilization, reduces costs, enhances structural reliability and deployment controllability, and is suitable for a variety of application scenarios.

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Abstract

This invention discloses a rope-driven deployment truss module for on-orbit assembly, belonging to the field of space folding mechanism technology. It addresses the limitations of large-scale development of space folding mechanisms and the volume constraints of transport vehicles. The truss mechanism of this invention includes several folding units, with adjacent folding units arranged front-to-back and connected by revolute joints. Two ropes originate from the same vertex of the outermost folding unit, connecting the rods in each folding unit in series, and finally reaching opposite vertices. One end of each rope is connected to a power element, and the other end is fixed to the opposite vertices. The folding and deployment of the truss are achieved by controlling the telescopic rods through the ropes.
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