Abstract:
Objective In order to improve the efficiency of the finite element geometric modeling of hulls, this study addresses the problem in which hull geometry models exported by ship design software cannot be directly used in finite element modeling.
Methods An Extensible Markup Language (XML) file of a hull exported by AVEVA Marine (AM) software is taken as the research object. By analyzing the data structure of the file, the data expression rules of the geometric model are clarified. According to the hull finite element modeling specifications, a geometric model processing method based on the XML file data is proposed.
Results The proposed algorithm can automatically delete and simplify components such as corners and openings, convert bulb flat steel and bracket plates, and move profiles and plate seams. The processed hull geometry model can be directly imported into finite element software HyperMesh, which complies with the finite element modeling specifications and retains the original model material, plate frame thickness and other related attributes.
Conclusions Compared with manual modeling, the efficiency of testing segmented solid geometric modeling is significantly improved. The proposed method can enable the reuse of ship design models and improve the efficiency of finite element geometric modeling.
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