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Personal cabinetDesign and analysis of a truss deployable antenna mechanism based on a 3UU-3URU unit
Bibliographic description of the article for the citation:
Мәділхан Батырханов. Design and analysis of a truss deployable antenna mechanism based on a 3UU-3URU unit//Science online: International Scientific e-zine - 2021. - №6. - https://nauka-online.com/en/publications/technical-sciences/2021/6/7-6/
Annotation: Space deployable structures with large calibers, high accuracy, and large folding ratios are indispensable equipment in the aerospace field. Given that the single-DOF 3RR-3RRR deployable unit cannot be fully folded, this study proposes a 3UU-3URU deployable unit with two kinds of DOF: folding movement and orientation adjustment. First, based on the G-K formula, the DOF of the 3UU-3URU unit is analyzed. Then, the 3UU-3URU unit is used to construct a deployable truss antenna with a curved surface, and the DOF of the whole deployable antenna containing multiple 3UU-3URU units is calculated. The structural design of a deployable antenna with two loops is carried out with specific parameters and geometric relations. Next, a DOF simulation of a basic combination unit composed of three 3UU-3URU units is performed. Finally, a prototype of the basic combination unit is manufactured, and the DOF of the mechanism is experimentally verified.