Pretension Design of Space Mesh Reflector Antennas Based on Projection Principle
Publication: Journal of Aerospace Engineering
Volume 28, Issue 6
Abstract
A pretension design method based on the projection principle is proposed for space deployable mesh reflector antennas. First, the equilibrium tension of the plane cable net structure is obtained by a force equilibrium method. Then, the obtained cable tensions of the plane cable net structure are projected to the spatial cable net reflector to obtain the spatial cable tensions. Finally, the implication relationship between the plane cable tensions and the tension distributions of front and back cable nets is revealed. A general analytical expression is deduced for the axisymmetric reflector, and an optimization model is established for the offset reflector. Some hoop truss deployable mesh antennas are examined as examples of pretension design. The uniform cable tensions and high surface accuracy of reflectors are obtained to verify the effectiveness of the proposed method.
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Acknowledgments
This project is supported by the National Natural Science Foundation of China (Grant No. 51375360).
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© 2014 American Society of Civil Engineers.
History
Received: Jul 1, 2013
Accepted: Nov 12, 2014
Published online: Dec 8, 2014
Discussion open until: May 8, 2015
Published in print: Nov 1, 2015
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