Finite element analysis of a meniscus mirror

Astronomy and Astrophysics – Astrophysics

Scientific paper

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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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