Vibration Monitoring

All machines are subjected to a wear process. Throughout this process, the vibrations emitted by machines change. Vibration monitoring helps to observe the wear process. Typical causes of vibrations are unbalances,bearing failure, lubrication problems or misalignment of shafts.

Vibration monitoring would be conducted at best during the whole service life of a machine. The machine can be monitored continously or periodically. Thereby, changes in state (increased vibration levels) can early be recognized and identified as machine damage.

As a result, repair and maintenance can be planned economically.

Vibration monitoring for evaluation of the entire machine measures usually the rms value of vibration velocity for a wide frequency range, e.g. 10 .. 1000 Hz. The evaluation of the measured vibration levels is carried out relatively to the new condition of a machine and orientates itself additionally to international standards (e.g. ISO 10816).

Thus, various parameter levels are determined, in which machines either can run without danger in continous operation, can only run short-time or in which the operation of the machine would lead to damages. Vibration monitoring often offers the possibility to define individual warning and alarm limits. If these are exceeded, an emergency shutdown is performed.