Multidisciplinary design optimisation of a ship hull using metamodels
Multidisciplinary design optimisation of a ship hull using metamodels
- New search for: He, Jim
- New search for: Hannapel, Shari
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- New search for: Vlahopoulos, Nickolas
- New search for: He, Jim
- New search for: Hannapel, Shari
- New search for: Singer, David
- New search for: Vlahopoulos, Nickolas
In this paper, the metamodelling approach is applied to the multidisciplinary design optimisation of a ship hull with regard to resistance, seakeeping and maneuvering performance. The hull shape is described by a set of design variables used in the simulations. At the top system level, a simple cost metric is defined to drive the overall design optimisation process. Changes to the hull shape are reflected in the numerical model for resistance computations and in the seakeeping and maneuvering assessment. An automated process has been developed for propagating changes to the hull form in the numerical model used for the resistance computations; this expedites the computations at the sample points used for developing the metamodels. The validity of employing metamodels instead of the actual analysis methods during the optimisation is demonstrated by comparing the values of the objective functions and constraints at the optimum point when using the actual analysis methods and the metamodels. The effectiveness of the multidisciplinary design optimisation algorithm is demonstrated using a simple analytical example.
Document information
Multidisciplinary design optimisation of a ship hull using metamodels
Multidisziplinäre Entwurfsoptimierung eines Schiffskörpers unter Verwendung von Metamodellen
Ship Technology Research / Schiffstechnik ; 58 , 3 ; 156-166
2011
11 Seiten, 4 Bilder, 4 Tabellen, 29 Quellen
Article (Journal)
English
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