空间可展开天线多态结构分析及优化设计

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摘要本文针对空间可展开天线从收拢态到展开态的多个工位，进行了动、静力性能分析并将其结构设计问题归纳为一个优化问题。通过主动件相应自由度的约束考虑了展开驱动的影响，从而可以准确获得展开过程不同工位固有频率的变化规律。进而，建立了以可展开天线单元横截面积和索张力为设计变量，以天线结构最低固有频率、频率禁区以及结构强度为约束，以结构重量（或质量）最轻为目标函数的多态结构优化模型。最终求解得到最优的天线结构设计参数。实验及数值分析结果验证了所建立分析模型的准确性和该设计方法的可行性。

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	张逸群
	杨东武
	李申

关键词 ：可展开天线, 结构分析, 优化设计, 多状态

Abstract：In view of the multi-state from the stowed state to the deployed state of the deployable space an-tenna, static and dynamic structural performance is analyzed and the structural design is concluded to an optimiza-tion problem. Via constraining the degree of freedom of active component, the influence of deployment torque is considered. Therefore, the variation law of the instantaneous structural eigenfrequency with the deployment is in-vestigated. The multi-state structural optimization model is proposed, where the optimization objective is to mini-mize the antenna weight. The cross sectional area of antenna components and the cable tension are selected as the design variables. Under the constraints of the structural eigenfrequency, frequency preserve, and the structural stiffness, the optimization problem is solved and the optimal structural parameters are obtained. Experiments and numerical simulations demonstrate the precision of the analysis models and the feasibility of this design method.

Key words： Deployable antenna Structural analysis Optimization design Multi-state

收稿日期: 2015-01-06 出版日期: 2016-09-25

引用本文:

张逸群，杨东武，李申. 空间可展开天线多态结构分析及优化设计[J]. 振动与冲击, 2016, 35(19): 162-167.
ZHANG Yi-qun, YANG Dong-wu, LI Shen. Multi-state Structural Analysis and Design for Space Deployable Antennas. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(19): 162-167.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2016/V35/I19/162

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