The risk of repeated machinery failures frequently leads to look for the causes of this phenomenon. If technologies are part of machines with rotating parts and there are indications to suggest high levels of vibration then one of the ways of eliminating these risks is to understand the symptoms of vibration. A common method is to
measure vibration using accelerometers in selected points. The measured values provide initial information on the level of vibration and spectral properties. But such an analysis does not necessarily provide a satisfactory answer to the question of what is causing these vibrations and how to reduce or eliminate.
