Classification Society ClassNK has granted its first notation certifying a vessel’s hull monitoring technology system, based on its Guidelines for Hull Monitoring released in June 2021.
The vessel Dream Clover, a 211,000 DWT bulk carrier built by Japan Marine United Corporation for Daiwa Kisen and to be chartered by NYK Line, is marked with the first DSS (Hull Monitoring) on its notation in ClassNK’s registry.
The class society’s Guidelines for Hull Monitoring were created based on the results of a study on Monitoring the Structural Health of Vessel Hulls for Very Large Containerships jointly conducted by NYK Line, MTI and Japan Marine United Corporation between 2016 and 2020.
The publication outlines the requirements to be met by monitoring systems to achieve functions contributing to improving the safety of the hull structure. The hull monitoring system installed on Dream Clover has functions to support maintenance and management of the ship based on fatigue strength evaluation, and to assist the captain during operation in rough conditions.
Additional sensors and measurement devices are expected to be installed to supplement the monitoring system on the vessel, with a digital twin of the hull structure on the actual ship also expected to be created as a part of a Japan Ship Technology Research Association’s project.