DIGITAL TWINS IN MARITIME SAFETY: A BREAKTHROUGH IN HULL STRUCTURAL INTEGRITY MONITORING VIA CUTTING-EDGE CONVERSION METHODS AND BASE MODE SELECTION ALGORITHMS

Abstract

Maritime vessels constantly experience various environmental loads, leading to cumulative fatigue damage on their hull structures, which can ultimately result in structural failure. Despite existing efforts to measure these structural responses, limitations in both sensor availability and measurable hull data present significant challenges. This study presents a ground-breaking approach within the sphere of Digital Twins in Maritime Safety. Our novel conversion method uses limited sensor data to estimate comprehensive hull responses, introducing an innovative base mode selection algorithm for improved accuracy. Leveraging extensive data from the Magellan container ship, including strain gauge measurements and wave spectra, we validate our model's robustness. As a unique feature, we offer a stress contour for the complete non-watertight bulkhead, underscoring our model's spatial precision. This pioneering approach optimises the use of limited measurements, marking a transformative breakthrough in hull structural integrity monitoring.