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Semikinematic mount for spatially constrained high aspect ratio spacecraft fold mirrors
Author(s): Rupali Sahu; Hemant Arora; Bhawdeep Singh Munjal
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Paper Abstract

An attempt has been made to propose a passive flexure-based semikinematic optimized mounting design for mirror fixing devices (MFDs) to mount spacecraft mirrors made of brittle materials, especially for high aspect ratio mirrors with low available space for mounting in satellites. The traditionally used tangent cantilever spiders occupy a lot of space and are suitable only for small mirrors. Similarly, the efficiency of flexural bipods is lost if not placed 120 deg apart, which is not possible in high aspect ratio mirrors. Two mounting configurations, one with collinear MFDs and the other with staggered MFDs, have been studied. An optimization problem is set up with dimensions of the proposed design as design variables and constraints imposed on structural performance of the mirror assembly. Investigations indicate that both configurations have potential applications in spacecrafts as they have provided feasible results and have satisfactory optical performance as well.

Paper Details

Date Published: 14 December 2017
PDF: 7 pages
Opt. Eng. 56(12) 125101 doi: 10.1117/1.OE.56.12.125101
Published in: Optical Engineering Volume 56, Issue 12
Show Author Affiliations
Rupali Sahu, Space Applications Ctr. (India)
Hemant Arora, Space Applications Ctr. (India)
Bhawdeep Singh Munjal, Space Applications Ctr. (India)

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