| At the present time, with the idea of digitized shipbuilding growing in popularity, CAD software is even more widely used in the fields of ship design and construction. CADDS5 system, which as a platform design software, has a huge advantage in the design of military vessels relying on the features of open database and independent path-based graphic files. While Tribon system, is a non-platform design software specialized in the design and modular manufacturing of civilian vessels. In order to meet different needs, the ship design institutes and production companies will normally use different CAD software, which have the big differences in models and solutions. To improve the quality of ship design and construction, the data transformation and sharing of principal ship CAD software must be achieved.Based on Knowledge-based Ship-design Hyper-Integrated Platform, this dissertation takes hull model data for the subject investigated. Firstly, the secondary development tools and data interfaces of CADDS5 and Tribon are analyzed. Meanwhile, through the comparison of the CAD system data information exchange technologies in existence and the research of the organizational structure forms and operation flows of hull model data within software system, a new basic framework of data exchange system is put forward based on special format file.To utilize the secondary development tools of CADDS5 and Tribon, as well as C# programming and exterior Html page, a data transformation system which includes data extraction,intermediate conversion and model reconstruction module interfaces is developed based on the previous theories and methods. The system realized the hull model data transformation of two software, and can contribute to data transformation of other CAD software, even further application in CAD/CAE integration.
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