<p>Condition monitoring is an alternative to scheduled maintenance which offers effective early detection of failure which translates to increased reliability and decreased maintenance costs. This paper describes the current implementations and the development trend of condition monitoring as it pertains to ship propulsion systems. A literature review regarding the current state-of-the-art of marine propulsion system condition monitoring is covered. A special focus is placed on how condition monitoring is implemented by ship owners and marine service providers, which regulatory codes are relevant and what current research is regarding condition monitoring and fault detection. The need for, and the trend towards the use of digital twins for condition monitoring is also discussed. Finally, the use of a digital twin for condition monitoring of the propulsion system of a polar supply and research vessel is proposed as a valuable case-study that practically shows how condition monitoring, both diagnosis and prognosis, can be implemented. Special considerations for this digital twin such as the consideration of ice impacts on the propeller is also discussed. For this, the state-of-the-art of ice material models for the purpose of load modelling is discussed and it is shown how ice material models are derived and validated experimentally and numerically.</p>

Condition Monitoring of Ship Propulsion Systems: State-of-the-Art, Development Trend and Role of Digital Twin

Paper Proceedings: https://asmedigitalcollection.asme.org/OMAE/OMAE2021/volume/85116

OMAE 2021

Supporting the need among researchers worldwide for additional online and multimedia content, ASME now offers the ASME Conference Video Collection. This platform will collect and provide long-term access to conference presentation videos, encompassing all technology areas within ASME's technical conference and events program. About 30,000-40,000 engineers across all mechanical engineering and related disciplines participate in ASME conferences each year. This includes authors of approximately 6,000 to 8,000 technical papers published by ASME, the majority of whom also submit video presentations for our virtual conferences. The video collection will be available as an add-on to existing product packages or as a separate subscription.