Development of a 3D CAD system for modeling hull structure at the initial ship design stage

Abstract

At the initial process planning and scheduling stages of shipbuilding, production material information of a building block is manually calculated by using two-dimensional drawings, data of parent ships, and designers' experiences. Thus, the accuracy of the calculated information is low. To provide precise information for the initial process planning and scheduling stages, a three-dimensional computer-aided design model of the hull structure is required at the initial design stage. In this study, a 3D computer-aided design system for modeling hull structure supporting the initial stage of ship design was developed. The applicability of the system was verified through its application to various ships. As a result, it was shown that the developed system can efficiently generate the three-dimensional computer-aided design model and production material information through rapid modeling at the initial design stage.