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Proceedings Paper

Unit moment analysis as a guide to mirror mount design
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Paper Abstract

Unit moment analysis minimizes the computational overhead associated with mirror mount design. Since mirrors operate in the linear domain with respect to stress/strain, it is possible to use the principle of superposition to determine overall optical surface deflection from a variety of sources. Surface deflection is calculated by FEA (finite element analysis) when applying unit loads at single mounting point. Deflection coefficients relating moments with surface deflection can be derived from the results of this analysis. These deflection coefficients are then applied, using the principle of superposition, to find the maximum tolerable moments associated with the mirror mount. Finally, manufacturing tolerances as well as environmental effects can be included to determine the required mirror mount compliance. This design approach is applicable to a wide range of mounting types, including classical kinematic and flexure mounts.

Paper Details

Date Published: 2 September 2015
PDF: 9 pages
Proc. SPIE 9573, Optomechanical Engineering 2015, 95730R (2 September 2015); doi: 10.1117/12.2186438
Show Author Affiliations
Daniel Vukobratovich, Raytheon Missile Systems (United States)
Patrick Coronato, Raytheon Missile Systems (United States)

Published in SPIE Proceedings Vol. 9573:
Optomechanical Engineering 2015
Alson E. Hatheway, Editor(s)

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