Rapid hull modeling methodology based on CAD and CATIA secondary development

Abstract

Objectives In the process of creating a hull model using CATIA, human factors are large and the process is complicated. In order to quickly measure the ship's offsets and adopt them to quickly 3D modeling, this paper presents a ship modeling design method, which can improve the efficiency and accuracy of ship modeling.Methods Based on the CAD and CATIA platforms, using user-oriented VB and Java languages, the CAD and CATIA modules are connected through an automated interface, and the two are jointly developed to measure offsets of hull form and convert to three-dimensional coordinate points, quickly establish a three-dimensional hull line, and generate a hull surface. Through two examples, verify the efficiency and reliability of the secondary development program.Results The results show that the secondary development program written can quickly convert the two-dimensional hull line to three-dimensional offset points in CAD, and create cross-section lines, vertical section lines, half-width waterlines in CATIA to achieve rapid three-dimensional construction modular function.Conclusions From the drawing results of the two different ship hull form in this article, it can be seen that the use of multi-platform collaborative design technology in this article has the technical characteristics of multi-stage modeling and related models, and the improvement of model quality and rendering efficiency, which is extremely user-friendly.

Keywords

• rapid modeling
• vb language
• catia
• cad
• hull form