Navy submarine machinery vibration monitoring cost/benefit and performance analysis

摘要

Models are described for calculating curves of probability of detection (Pd) and probability of false alarm (Pfa) versus the threshold limits set for a vibration monitoring program (VMP). These values of Pd and Pfa are then used in a cost/effectiveness model based on the Bayes Criterion for binary hypothesis to examine the VMP cost benefit as a function of cost of unanticipated failure, cost for both necessary and unnecessary preventative maintenance or repair, and expected failure rates of the monitored machines.