Mitsubishi Shipbuilding, BV partner on 3D model-based classification project

Classification society Bureau Veritas (BV) and Mitsubishi Shipbuilding, a part of Japanese company Mitsubishi Heavy Industries (MHI) Group, have completed a joint development project (JDP) to implement 3D model-based approvals.

As informed, the project enhanced the design approval process by replacing traditional 2D drawings with a detailed 3D digital mock-up from the designers.

According to the partners, this new approach reduces the need for multiple 2D conversions, lightening the shipyard workload and accelerating the design process while improving accuracy. The 3D model also functions as a dynamic database for calculations, helping to minimize errors and inconsistencies across design revisions.

This collaboration marks Mitsubishi Shipbuilding’s first application of a 3D classification approach, to steamline its design processes through digital innovation.

BV presented the JDP completion letter to MSB during this year’s Gastech conference in Houston.

“This successful project is another example of Bureau Veritas’ leadership in 3D classification technology. Our collaboration with Mitsubishi Shipbuilding underscores the effectiveness of 3D model-based approaches in addressing modern vessel design challenges, enhancing efficiency, and advancing the maritime industry,” Matthieu de Tugny, President, Bureau Veritas Marine & Offshore, said.

In the initial phase of the project, Mitsubishi Shipbuilding transmitted 3D models to BV using the Open Class eXchange (OCX) format. BV reviewed these models and provided feedback through its collaborative platform, Veristar Project Management (VPM), with comments directly linked to the 3D models.

Specifically, the solution features a web-based platform for real-time exchanges of 3D classification packages and comments, allowing for detailed model analysis and compatibility with various operating systems, even functioning offline.

VPM is said to further enhance this process by offering secure access, property rights management, and efficient comment handling, ensuring a structured review from submission to final approval.

Furthermore, the project is especially noteworthy due to its application to MSB’s complex vessel designs. This presents unique challenges, underscoring the importance of 3D model-based classification technology.

“The JDP has demonstrated the feasibility and benefits of using 3D models for direct classification reviews, enhancing efficiency and fostering better collaboration among all stakeholders, including shipyards, naval architects, engineers, shipowners, and classification societies,” it was concluded.

During Gastech 2024, Mitsubishi Shipbuilding, together with Japanese companies Nippon Yusen Kabushiki Kaisha (NYK Line), Kawasaki Kisen Kaisha (K Line), Mitsui O.S.K. Lines (MOL), and Nihon Shipyard, received approvals in principle (AiPs) for the design of 23,000 cbm and 50,000 cbm large liquefied CO2 (LCO2) carriers.