Lloyd’s Register (LR) has published guidance for using digital 3D models in structural plan approval, providing shipyards and designers with a framework for submitting intelligent models in place of traditional 2D plans.
The LR-GN-066 Guidance Notes for Digital 3D Models set out requirements covering file formats, model organisation, metadata, structural detail, revision control and submission procedures.
The guidance is intended for shipyards and design offices already using 3D models across design, manufacturing and construction workflows, allowing existing digital assets to be used for class approval rather than creating separate files for review.
LR said that while standards for 2D shipbuilding plans are well established, comparable guidance for 3D models in classification approval has been largely absent.
The framework is voluntary and non-prescriptive, and is designed to accommodate different software ecosystems and alternative methods that can deliver equivalent outcomes.
“For many projects, the most complete representation of a vessel now exists in a digital model. By defining what information should be included, how it should be structured and how it can be reviewed, we are giving clients greater clarity on how to use those digital assets to support class approval and maximise the value of the work they are already doing,” said João Estevens, Senior Specialist at Lloyd’s Register.
Models submitted under the framework can also be reviewed and managed through LR’s Digital Workbench platform.
