Abstract

In this study, a new type of cable-strut tensioned antenna mechanism is proposed and subjected to multi-objective optimization. First, a series of new cable-strut tension element configurations is proposed, and the optimal configurations are optimized on the basis of six topological characteristics of stable spatial cable-strut tensioned structures. Second, the mathematical surrogate models between configuration parameters, structural parameters, and fundamental frequencies of antenna mechanisms are established with the response surface method. Third, the optimization of the antenna mechanism synthesis is established, and the antenna configuration with optimal stiffness and mass synthesis is obtained with a genetic algorithm. Finally, the correctness and rationality of the proposed structural configuration is verified by developing a 2 m caliber prototype and conducting a dynamic characteristic test. The results should serve as a useful reference for the design of large caliber satellite antennas in aerospace engineering.

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