000011148 001__ 11148 000011148 005__ 20250109145517.0 000011148 0247_ $$2doi$$a10.24868/11148 000011148 037__ $$aGENERAL 000011148 245__ $$aDigital twin simulation model of hull-propeller-engine interactions for ship condition monitoring in irregular sea navigation 000011148 269__ $$a2024-11-05 000011148 336__ $$aConference Proceedings 000011148 520__ $$aFaults in the prime mover of a ship would lead to unpleasant consequences during navigation, especially in the event of bad weather. To avoid troublesome situations, any faults in the propulsive chain should be promptly recognized, by observing the initial degradation of sensitive mechanical components through condition monitoring techniques. However, the effects of such degradations need to be distinguished from the offset induced by the wave actions on a healthy system. This paper concerns the analysis of the consequences of several types of degradations on a ship sailing in rough weather. The study is carried out by means of a numerical simulation model that accounts for the hull, propeller and engine interactions in irregular head seas. The degradation levels of some relevant engine components are systematically modeled and simulated. The performances of hull dynamics, propeller actions, and engine performances are monitored and compared with the healthy propulsion system, aiming at providing a correlation between cause and effect. To this end, a twin screw Ropax vessel, powered by two marine diesel engines, is considered. 000011148 7001_ $$aAcanfora, M$$uUniversity of Naples 000011148 7001_ $$aAltosole, M$$uUniversity of Naples 000011148 7001_ $$aBalsamo, F$$uUniversity of Naples 000011148 7001_ $$aScamardella, F$$uUniversity of Naples 000011148 773__ $$tConference Proceedings of iSCSS 000011148 773__ $$jiSCSS 2024 000011148 8564_ $$uhttps://library.imarest.org/record/11148/files/iSCSS_24_paper_18.pdf$$9afdb0bfb-b6ba-4a80-96b9-063e2c9f03ca$$s3105067