Analysis of a membrane-modified perimeter-truss mesh antenna

NM Awlad Hossain; Christopher H. Jenkins; Lisa R. Hill

doi:10.1117/12.505908

30 January 2004 Analysis of a membrane-modified perimeter-truss mesh antenna

NM Awlad Hossain, Christopher H. Jenkins, Lisa R. Hill

Proceedings Volume 5166, UV/Optical/IR Space Telescopes: Innovative Technologies and Concepts; (2004) https://doi.org/10.1117/12.505908
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

The AstroMesh antenna is an example of a mesh reflector with perimeter truss for use as a large aperture space antenna. A quarter model of such an antenna, with the original mesh supplemented with a continuous membrane, was analyzed in nonlinear finite element code ABAQUS. In particular, we investigated requirements for maintaining the initial parabolic shape under thermal perturbation. An RMS error was calculated for different thermal loadings as a measurement of deviation of the perturbed surface from a reference parabolic shape. Thermal contraction or expansion of the membrane boundary springs was found to offer reduced RMS error, but at the cost of higher spring reaction force. Electrostatic pressure was also applied to different membrane regions to acheive better RMS error with minimized spring reactions.

Citation Download Citation

NM Awlad Hossain, Christopher H. Jenkins, and Lisa R. Hill "Analysis of a membrane-modified perimeter-truss mesh antenna", Proc. SPIE 5166, UV/Optical/IR Space Telescopes: Innovative Technologies and Concepts, (30 January 2004); https://doi.org/10.1117/12.505908

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