Performance and Dynamic Properties of an Active Axial Bearing

Description

In magnetically levitated systems at least one degree of freedom has to be actively stabilized. This is usually achieved with a linear magnetic actuator. If not prevented by e.g. lamination, eddy currents take place in the field conducting iron. These eddy currents have a strong effect on the field distribution in the iron and further reduce the force per current at higher frequencies. In this paper investigate the dynamic properties of a non laminated actuator biased with a permanent magnet in the rotor is anlaysed. It is shown that the voltage to force transfer function is practically unaffected by eddy currents.

Period	09 Aug 2012
Event title	SMB 2012, The 13th International Symposium on Magnetic Bearings, Augsut 6 - 9, 2012
Event type	Conference
Location	United StatesShow on map