In a nuclear power plant, if the vibration of the turbine axle exceeds a certain limit, we speak of a vibration crisis. It does not represent a real damage but it could, if left unchecked, lead to a major failure. The exact cause of the problem is not precisely identified at present but it always occurs during the same conditions of vacuum pressure and power, two essential measurements on the plant.
This study concerns itself with the prediction of future vibration crises and not with determining the mechanism that causes such vibrations. If one could know hours in advance that a crisis will happen, this would help operators to alleviate it: The plant can be regulated into a state more conducive to controlling the impending crisis.
For complete details on this case study, go to: Predicting Vibration Crises in Nuclear Power Plants