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.

中文翻译：

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索杆张拉天线机构设计及多目标综合优化

摘要 在本研究中，提出了一种新型索杆张拉天线机构，并对其进行了多目标优化。首先，提出了一系列新的索杆受拉单元构型，并根据稳定空间索杆受拉结构的六种拓扑特征对最优构型进行了优化。其次，利用响应面法建立了天线机构的配置参数、结构参数和基频之间的数学代理模型。第三，建立天线机构综合优化，通过遗传算法得到刚度和质量综合最优的天线构型。最后，通过开发2 m口径样机并进行动态特性试验，验证了所提出结构配置的正确性和合理性。研究结果可为航天工程大口径卫星天线的设计提供有益的参考。