Translator Disclaimer
1 October 1990 Structural and optical properties for typical solid mirror shapes
Author Affiliations +
Abstract
A method is developed to determine the weight, center of gravity, areal properties, and mass inertial properties for typical mirrors. A number of support conditions were considered to examine optical surface deflections, surface quality, and fundamental natural frequency for single- and double-arch mirror shapes. Structural performance estimates were made with the NASTRAN program, and optical performances were evaluated with the FRINGE program, using an SXA 40-in mirror. To show the behavior of element types from the NASTRAN program, finite element validity and sensitivity studies were performed in optical model applications. Material parameters, contoured back shapes, and support locations are shown to have significant effects on structural and optical performances. Optimal support locations and support points are given. Fundamental natural frequencies for some shapes are found with the closed-form solution. The plate models results may not be acceptable for determining real mirror optical performances.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Myung K. Cho and Ralph M. Richard "Structural and optical properties for typical solid mirror shapes", Proc. SPIE 1303, Advances in Optical Structure Systems, (1 October 1990); https://doi.org/10.1117/12.21541
PROCEEDINGS
18 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Wind responses of Giant Magellan telescope
Proceedings of SPIE (August 04 2014)
Modeling of structural cables
Proceedings of SPIE (July 09 2018)
Nodal model for continuous face sheet deformable mirrors
Proceedings of SPIE (January 19 2003)
Ray tracing from finite element results
Proceedings of SPIE (September 15 1993)

Back to Top