Vibration damping in a motor drive shaft system operating under active power flow oscillation

This paper discusses the methods of analysis of the active power oscillations occurred in a motor drive propulsion shafting system under variation of the rotational speed and load condition. The oscillation in the supplied active power generates the system vibration and increases the drive motor loading. It has been shown that the installation of the vibration dampers significantly improves the system performance and decreases the influence of the active power oscillation particular at resonance frequencies. The paper considers two model of the system - equipped with magnetorheological dampers and without. The simulation results shown that efficient vibration damping can be achieved using the appropriate control of the magnetorheological damper properties.