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30 January 2004 Performance of flexure-hinged substrate-nanolaminate deformable mirror through modeling and simulation
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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.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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);

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