Semikinematic mount for spatially constrained high aspect ratio spacecraft fold mirrors

Rupali Sahu; Hemant Arora; Bhawdeep Singh Munjal

doi:10.1117/1.OE.56.12.125101

14 December 2017 Semikinematic mount for spatially constrained high aspect ratio spacecraft fold mirrors

Rupali Sahu, Hemant Arora, Bhawdeep Singh Munjal

Author Affiliations +

Optical Engineering, Vol. 56, Issue 12, 125101 (December 2017). https://doi.org/10.1117/1.OE.56.12.125101

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.

Citation Download Citation

Rupali Sahu, Hemant Arora, and Bhawdeep Singh Munjal "Semikinematic mount for spatially constrained high aspect ratio spacecraft fold mirrors," Optical Engineering 56(12), 125101 (14 December 2017). https://doi.org/10.1117/1.OE.56.12.125101

Received: 17 July 2017; Accepted: 13 November 2017; Published: 14 December 2017

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