Operational failure assessment of Remotely Operated Vehicle (ROV) in harsh offshore environments

For an effective integrity assessment of marine robotic in offshore environments, the elements’ failure characteristics need to be understood. A structured probabilistic methodology is proposed for operational (OFA) ROV. The first step assess likely mode ROV system and its support systems. This captures interaction induced events during operation. identified potential modes are further developed into logical connectivity based on cause-effect relationship. framework modeled using fault tree analysis technique predict probability uncertain harsh environment. captured relationship between primary, intermediate, top probability. importance measure criteria were adopted identify most probable events, links, their propagation. model was demonstrated with deep arctic water subsea operations. result control system, communication linkages, human factor, among others, as critical failure. methodology’s application provides core information Mean time (MTBF) that could aid management a guide early remedial action against total