Abstract
An automated optimization procedure based on successive response surface method is presented. The method is applied to weight optimization of a stiffened plate used in marine structures. In the design space the surrogate model is spanned sequentially into an optimally restricted subspace that is converging towards at least a local optimum. Both objective function and all constraint functions are modeled using linear response surface method enabling the use of a robust and efficient simplex algorithm for the optimizations. Special attention is paid to CAD and FEM-model linking that plays a central role in practical industrial applications. In this project SOLIDWORKS and ANSYS software are adopted for structural modeling and analysis, respectively, and the optimization is carried out in a MatLab environment. The reported results achieved in this project prove the robustness and effectiveness of the proposed approach.
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Support from the Finnish Metals and Engineering Competence Cluster (FIMECC) Innovations & Network- research and the research project Computational methods in mechanical engineering product development - SIMPRO are gratefully acknowledged.
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Pajunen, S., Heinonen, O. Automatic design of marine structures by using successive response surface method. Struct Multidisc Optim 49, 863–871 (2014). https://doi.org/10.1007/s00158-013-1013-7
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DOI: https://doi.org/10.1007/s00158-013-1013-7