Multi-state Structural Analysis and Design for Space Deployable Antennas

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (19) : 162-167.

ZHANG Yi-qun, YANG Dong-wu, LI Shen

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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

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ZHANG Yi-qun, YANG Dong-wu, LI Shen. Multi-state Structural Analysis and Design for Space Deployable Antennas[J]. Journal of Vibration and Shock, 2016, 35(19): 162-167

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