Citation:
Li Sun and Deyu Wang.A New Rational-based Optimal Design Strategy of Ship Structure Based on Multi-level Analysis and Super-element Modeling Method[J].Journal of Marine Science and Application,2011,(3):272-280.[doi:10.1007/s11804-011-1069-y]
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A New Rational-based Optimal Design Strategy of Ship Structure Based on Multi-level Analysis and Super-element Modeling Method
Li Sun and Deyu Wang.A New Rational-based Optimal Design Strategy of Ship Structure Based on Multi-level Analysis and Super-element Modeling Method[J].Journal of Marine Science and Application,2011,(3):272-280.[doi:10.1007/s11804-011-1069-y]
Info
- Title:
- A New Rational-based Optimal Design Strategy of Ship Structure Based on Multi-level Analysis and Super-element Modeling Method
- Author(s):
- Li Sun and Deyu Wang
- Affilations:
- Keywords:
- rational-based optimal design method (RBODM); multi-level analysis; super-element; ship module; genetic algorithm
- DOI:
- 10.1007/s11804-011-1069-y
- Abstract:
- A new multi-level analysis method of introducing the super-element modeling method, derived from the multi-level analysis method first proposed by O. F. Hughes, has been proposed in this paper to solve the problem of high time cost in adopting a rational-based optimal design method for ship structural design. Furthermore, the method was verified by its effective application in optimization of the mid-ship section of a container ship. A full 3-D FEM model of a ship, suffering static and quasi-static loads, was used as the analyzing object for evaluating the structural performance of the mid-ship module, including static strength and buckling performance. Research results reveal that this new method could substantially reduce the computational cost of the rational-based optimization problem without decreasing its accuracy, which increases the feasibility and economic efficiency of using a rational-based optimal design method in ship structural design.
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Memo
- Memo:
- Supported by the Project of Ministry of Education and Finance (No.200512) and the Project of the State Key Laboratory of ocean engineering (GKZD010053-10)
