Session: 06-10-01 Offshore Industry: Structures and Design I

Paper Number: 121825

121825 - Application of a Geometric Common Model Modeling Method Based on Skeleton Model in Lashing Bridge Design 

The lashing bridge is considered one of the core technologies in container ships. It is used to secure containers above the main deck and transfer the loads generated by container stacking to the ship's structure. Its design is influenced by various factors such as shipowner requirements, layout demands from the loose gear fitting manufacturers, and the overall arrangement of the main deck. Therefore, it faces challenges in terms of design changes and collaborative design. In addition, lashing bridge design not only requires generating drawings and bill of material, but also involves activities such as finite element analysis and virtual prototyping validation, all of which have different geometric requirements. Faced with these design needs, although computer-aided design (CAD) models are widely recognized for their immense potential, they pose the following challenges to CAD methodologies: (1) Support frequent transformations between different geometrical models; (2) Maintaining consistency between models in the event of design changes; (3) Enabling the CAD product structure for design collaboration between various designers. This paper proposes a product structure built upon the concept of geometric common modeling, leveraging skeleton models within the CATIA V6. By elucidating the positive impact of skeleton models, an abstract entity within the assembly model, on change propagation from a CAD mechanism perspective, the study underscores the pivotal role of skeleton models in organizing and linking all design information, facilitating efficient interaction between different models. Practical lashing bridge applications illustrate the effectiveness of this methodology. Moreover, this paper identifies the potential for further expansion of skeleton models in conveying non-geometric information. The product structure based on skeleton models also embodies the philosophies of top-down and concurrent engineering. This method not only achieves geometric common modeling but also holds promise for broader applications, offering valuable insights for integrated design and serving as a beneficial reference for complex product design methodologies.

Presenting Author: Sihao Xu Shanghai Jiao Tong University

Presenting Author Biography: Name: Xu Sihao
Ph.D. Candidate in Shanghai Jiao Tong University
Engineer in Marine Design & Research Institute of China
Email: mairc_downyxu@163.com

Education Background:
Ph.D. in Naval Architecture and Ocean Engineering, Shanghai Jiao Tong University, 2021 - Present
Master in Naval Architecture and Ocean Engineering, Shanghai Maritime University, 2014 - 2016
Bachelor in Naval Architecture and Ocean Engineering, Shanghai Maritime University, 2010 - 2014

Research Areas:
Virtual Product Design, Knowledge based engineering, Ship Structure Design, Ship Outfitting Design

Research Achievements:
Participated in one National Basic Research Program of China.

Authors:

Sihao Xu Shanghai Jiao Tong University
Hairui Li Marine Design & Research Institute of China
Xiaoyang Tang Marine Design & Research Institute of China
Deyu Wang Shanghai Jiao Tong University