Fault Detection in Offshore Structures: Influence of Sensor Number, Placement and Quality

Within the Space@Sea project floating offshore islands, designed as an assembly of platforms, are used to create space in environments. Offshore structures exposed harsh environment conditions. High wind speeds, heavy rainfall, ice and wave forces lead highly stressed structures. The platforms at connected by ropes fenders. There exists risk a rope failing which is therefore investigated subsequently. To ensure safety structure, parameters monitored Extended Kalman Filter (EKF). For platform arrangements, large number sensors required for accurate fault diagnosis these ropes, leading high investment costs. This paper presents strategy optimize placement acceleration attached platforms. also demands on due Material deterioration overloading may decayed sensor performance or defects. Maintenance difficult, expensive often not feasible within short time. Therefore, measurement deviations must affect reliable structure detection. influence defect detection examined this study: Types, intensities, number, place occurrence distance between faults varied.