Topology optimization of the primary mirror of a multi-spectral camera

A study of the topology optimization of a multi-spectral camera for space-use is presented. The optimization is carried out under self-weight and polishing pressure loading. As an objective function, a measure of Strehl ratio is used. Total mass of the primary mirror is given as a constraint to the optimization problem. The sensitivities of the objective function and constraint are calculated by direct differentiation method. The optimization procedure is carried out by an optimality criteria method. For the light-weight primary mirror design, a three dimensional model is treated. As a preliminary example, topology optimization considering a self-weight loading is treated. In the second example, the polishing pressure is also included as a loading in the topology optimization of the mirror. Results of the optimized design topology for the mirror with various mass constraints are presented.
Publisher
SPRINGER
Issue Date
2003-03
Language
ENG
Keywords

STRUCTURAL TOPOLOGY; SHAPE

Citation

STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION, v.25, no.1, pp.46 - 53

ISSN
1615-147X
URI
http://hdl.handle.net/10203/3150
Appears in Collection
ME-Journal Papers(저널논문)
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