ABSTRACT
Rotor unbalance and misalignment are the most influential faults in rotating machines. Nowadays, the high-speed machines are employed with active magnetic bearings (AMBs) for rotor supporting and fault identification purposes. In the present paper, the dynamic analysis of an unbalanced and misaligned rigid rotor with a disc at the offset position supported on AMBs, has been numerically investigated. Non-collinearity between the rotating axis of rotor and the axis of supported AMBs is the main cause of misalignment fault. The prime intention of the paper is to study the rotor dynamic behaviour under the influence of disc eccentricity and AMB misalignment ratios.
