Reliability evaluation of alarm by vibration monitoring of rolling bearing in rotary machinery (consideration of loss by false alarm)

摘要

In this paper, the performance of alarm systems which are based on vibration monitoring is considered. Evaluation and comparison of alarm systems based on loss, e.g. missed prohibit due to false alarm and cost of repair due to missing alarm, are reported. As the high sensitivity and low false alarm rate contradict each other, loss is one of the important indices for alarm system evaluation.