Deformations of an astronomical mirror suspended on a belt during horizontal control
Abstract
The calculation of astronomicalmirror distortions that occur during horizontal control is considered. The mirror is assumed to be suspended on a steel belt and to be loaded by the forces of its own weight and reactions due to the belt. The calculation is performed in terms of a flat shell of revolution of variable thickness, and the initial problem is formulated as the result of a superposition of the axisymmetric and skewsymmetric problems. The system of ordinary differential equations describing these problems is solved by computer. A displacement function is obtained which determines the shape of the optical surface of a beltsuspended mirror. Results are presented for calculations of three mirror variants.
 Publication:

Astronomicheskii Zhurnal
 Pub Date:
 April 1979
 Bibcode:
 1979AZh....56..434B
 Keywords:

 Astronomy;
 Mirrors;
 Surface Distortion;
 Computer Programs;
 Differential Equations;
 Graphs (Charts);
 Shell Theory;
 Thin Walled Shells;
 Astronomy