Performance Coordination of Structure and Deployment Properties of Deployable Antenna
Publication: Journal of Aerospace Engineering
Volume 32, Issue 5
Abstract
The cable-net structure is an important part of the deployable mesh antenna, which determines the accuracy of the reflector surface and also has a nonnegligible influence on the deployment of the antenna. In this study, the AstroMesh antenna (Astro Aerospace, Northrop Grumman, Oxnard, California) is investigated. First, this influence is studied from the perspective of work. Then, the driving force for the deployment of the antenna is deduced considering the nonlinear factors, such as the cable-net and friction, according to the conservation of energy. Moreover, the effects of the cable force and the height of the rear net on the driving force are studied. According to the aforementioned research, an optimization model of the cable-net structure is proposed. By designing the cable net reasonably, the performance of work and the deployment for the antenna are coordinated well. Finally, according to the prototype of a 2-m-aperture deployable AstroMesh antenna, different cable-net structures are designed. The corresponding peak value of the driving force and the fundamental frequency of the deployed antenna are measured. The experimental results verify the validity of the optimization method.
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Acknowledgments
This work is supported by the National Natural Science Foundation of China (Nos. 51775404 and U1637207), Fundamental Research Funds for the Central Universities (No. JB180410), and the Shanghai Aerospace Science and Technology Innovation Fund.
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Published In
Journal of Aerospace Engineering
Volume 32 • Issue 5 • September 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Dec 19, 2018
Accepted: Apr 2, 2019
Published online: Jun 14, 2019
Published in print: Sep 1, 2019
Discussion open until: Nov 14, 2019
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