Finite element analysis of a meniscus mirror

Details Finite element analysis of a meniscus mirror Finite element analysis of a meniscus mirror

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.160..145y&link_type=abstract

(Group of Optical and Infrared Astronomers in Japan, Astronomical Society of Japan, Inamori Foundation, et al., International Sy

Astronomy and Astrophysics

Astrophysics

Finite Element Method, Mirrors, Telescopes, Error Analysis, Gravitation, Surface Properties

Scientific paper

Finite element analyses were carried out for a 7.5 m meniscus mirror of 20 cm thickness. Calculations were made for deformations of the mirror surface due to the gravity and the effect of a hole through which a lateral supporting mechanism would be installed. Vibrational eigenmodes were also calculated when the mirror is fixed by three axial and three lateral hard points.

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