Abstract.
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.
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Received September 3, 2001
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ID="*"A shorter version of this paper was presented at ISSMO’s Fourth World Congress in 2001, in Dalian, China. Dr Park was awarded for it the ISSMO/Springer prize for young scientists-2001
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Park, K., Chang, S. & Youn, S. Topology optimization of the primary mirror of a multi-spectral camera. Struct Multidisc Optim 25, 46–53 (2003). https://doi.org/10.1007/s00158-002-0271-6
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DOI: https://doi.org/10.1007/s00158-002-0271-6