Principles and framework model for the development of a ship hull digital twin

The article discusses the issues and problems of creating digital twins (DT) of ship hulls. The aim is to develop appropriate methodic. It is noted that there are no classification and regulatory requirements for the DT of a ship's hull in domestic practice so far. The purpose and main tasks of the DT are determined, their role in the life cycle management of the ship. It is noted that the use of the ship's hull DT will make it possible to influence the solution of modern problems of the design and operation of ships, the regulation of their safety. The contradictions arising from the introduction of the DT technology into the existing system of regulation and design of ships are analyzed. Proceeding from this, the principles for developing methods for creating a DT were formulated: structuring and modularity; model hierarchy and sub-modeling; feedback control; motivation to improve rules of classification societies. The structure of methods for the development of the ship's hull DT is proposed. The main stages of DT development are determined. An example of the development of a DT of the passenger high-speed catamaran made of composite materials based on the ANSYS Workbench development environment at the stage of a ship's technical design is considered. The structure of DT models at the stage of detailed design and operation of the ship's hull is proposed.