A technique for the optical analysis of deformed telescope mirrorsThe NASTRAN-ACCOS V programs' interface merges structural and optical analysis capabilities in order to characterize the performance of the NASA Goddard Space Flight Center's Solar Optical Telescope primary mirror, which has a large diameter/thickness ratio. The first step in the optical analysis is to use NASTRAN's FEM to model the primary mirror, simulating any distortions due to gravitation, thermal gradients, and coefficient of thermal expansion nonuniformities. NASTRAN outputs are then converted into an ACCOS V-acceptable form; ACCOS V generates the deformed optical surface on the basis of these inputs, and imaging qualities can be determined.
Document ID
19870047987
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bolton, John F. (NASA Goddard Space Flight Center Greenbelt, MD, United States)