Performance of flexure-hinged substrate-nanolaminate deformable mirror through modeling and simulation

Sarma N. Gullapalli; Robert Flood

doi:10.1117/12.506899

30 January 2004 Performance of flexure-hinged substrate-nanolaminate deformable mirror through modeling and simulation

Sarma N. Gullapalli, Robert Flood

Proceedings Volume 5166, UV/Optical/IR Space Telescopes: Innovative Technologies and Concepts; (2004) https://doi.org/10.1117/12.506899
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

This paper presents modeling and simulation results pertaining to the wave front correction performance of the recently developed large aperture deformable mirror concept using the novel flexure-hinged substrate. The modeling addresses the potential of this new concept to significantly alleviate the CTE mismatch problems, thereby opening the door to greatly relaxed fabrication, thermal and operational requirements of telescopes. The large aperture deformable mirror consists of an ultra-lightweight nanolaminate face sheet supported by actuated flexure-hinged lightweight substrate. The mirror system is modeled using a combination of Matlab and NASTRAN codes. Using this model, mirror responses to severe thermal loads and the corrections of the resulting deformations through the actuated substrate, are studied. These results represent an important first step in advancing this new concept towards eventual laboratory tests.

Citation Download Citation

Sarma N. Gullapalli and Robert Flood "Performance of flexure-hinged substrate-nanolaminate deformable mirror through modeling and simulation", Proc. SPIE 5166, UV/Optical/IR Space Telescopes: Innovative Technologies and Concepts, (30 January 2004); https://doi.org/10.1117/12.506899

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