Effect of drive system component compatibility on motor vibration

Within the engineering industry it is a known fact that there are a multitude of cases where the individual components test satisfactorily however when the parts are combined, the net sum performance is not as good as the individual parts. Static and dynamic compatibility of the individual drive system component should be matched together in order to achieve a satisfactory system performance. This paper will focus on a few areas where an improvement can be achieved by examining the compatibility of the coupled components. The driver, driven connections and bearings are the main contributors to the system dynamic compatibility, in addition to the mounting bases and foundations. Motors that are powered by adjustable speed drives (ASD) usually require additional design features to accommodate drive influence on the motor. Since these motors run by ASD operate at variable speeds, their dynamic compatibility with the ASD analysis are particularly important.