A new method of the top-down parametric design for quick subdivision based on constraints. Issue 2 (4th May 2019)

• Record Type: Journal Article
• Authors: Guan, Guan; Lin, Yan; Gu, Wenwen
• Is Part Of: Journal of marine engineering and technology. Volume 18:Issue 2(2019)
• Page Start: 67
• Page End: 81
• Publication Date: 2019-05-04
• Subjects: 623.805
• DOI: 10.1080/20464177.2018.1492363
• Languages: English
• ISSNs: 2046-4177

Abstract

ABSTRACT: Currently, the subdivision method of bottom-up is used widely in the ship industry, which is time-consuming and tedious as the ship consists of compartments of several tens to several hundreds. To improve the speed of subdivision, a new parametric subdivision method of the top-down approach based on constraints is proposed. The proposed method is based on space subdivision as if we cut a box into many small pieces. For this, several parameters (bulkhead and inner knuckle positions) are set to generate the subdivision polyhedrons to cut the hull and Non-manifold modelling technology is applied to generate solid model. Then the subdivision constraints are linked with the solid model and the subdivision scheme is optimised by constraints' knowledge, and the hold capacities can be calculated rapidly by this method. This method not only generates and modifies the solid model quickly, but can also reflect the designer's ideal vividly.