Automatic design of marine structures by using successive response surface method
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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.
KeywordsSurrogate model Response surface method Optimal design Simplex-algorithm
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.
- Arai M, Shimizu T (2001) Optimization of the design of ship structures using response surface methodology. In: Wu Y-S, Cui W-C, Zhou G-J (eds) Practical design of ships and other floating structures. pp 331–339Google Scholar
- Eldred MS, Dunlavy DM (2006) Formulations for surrogate-based optimization with data fit, multifidelity, and reduced-order models. In: Proceedings of the 11th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, paper AIAA-2006-7117. Portsmouth, VA, 6-8 SeptGoogle Scholar
- Heinonen O, Pajunen S (2011) Optimal design of stiffened plate using metamodeling techniques. J Struct Mech 44(3):218–230Google Scholar
- Hock W, Schittkowski K (1981). Test examples for nonlinear programming codes. Lecture Notes in Economics and Mathematical Systems, 187. SpringerGoogle Scholar
- IACS (2009) Common Structural Rules for Bulk CarriersGoogle Scholar
- Khuri AI, Cornell JA (1987) Response surfaces: design and analyses. Marcel Dekker IncGoogle Scholar
- Montgomery DC (2001) Design and analysis of experiments. WileyGoogle Scholar
- Nemhauser GL, Laurence AW (1988) Integer and Combinatorial Optimization. WileyGoogle Scholar