Vibration Control in a Motor Drive Using an Active Magnetic Bearing
Application ID: 90261
Active magnetic bearings are often used for controlling the vibration level in mechanical systems. In this example, a motor driven rotor system in which the speed of the system is gradually increased is considered. The system vibrates due to existing imbalances. As the rotor speed crosses through the critical speeds of the system, high vibration levels are induced due to resonance. In the second study, an electromagnetic bearing is switched on at the instant when rotor is crossing over one of critical speeds with the objective of controlling the vibrations during the resonance. The vibration response of the system with electromagnetic bearing is compared with the one without electromagnetic bearing.
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Grille des Spécifications and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.