Abstract: Aimed at the problem that there are many iterations in China’s ship structure design and there are different designs in different national regions, a rapid modeling method of hull structure is proposed. The method takes “Top-Down design” as the design idea and the skeleton model as the carrier. After analyzing and summarizing the characteristics of the hull structure, a skeleton model for ship structure is built and the definition of the model is made. The rapid layout design is realized through the skeleton model of the ship structure and the parameter coordinate system. The relationship between the parameter coordinate system and the ship plates is established to achieve the rapid modeling and adjustment of the ship structure, and to give the corresponding algorithm. The organized design information is integrated into the skeleton model in order to realize the integrity definition and rapid modeling for hull structure. Finally, the rapid modeling system is developed based on the CATIA V6 platform, and the feasibility of the method turns out to be verified by the longitudinal skeleton structure.

Key words: ship structure, top-down, skeleton model, rapid modeling, CATIA V6