This paper provides a new algorithm and test verification for implementing fault-tolerant operation of magnetically suspended, flexible shaft, rotating machinery. The currents to the magnetic bearing are redistributed in a manner so that the bearing actuator preserves the same linearized magnetic forces after some of its coils experience failure. The algorithm that searches a database for the appropriate failure compensation matrix utilizes a Boolean description of the failure state to quickly locate and download its target. The test results are shown to have good agreement with the system simulation results presented.
Issue Section:
Technical Papers
Keywords:
magnetic forces,
elasticity,
rotors,
mechanical engineering computing,
rotation,
electromagnetic actuators,
machine bearings,
failure (mechanical),
Boolean algebra,
matrix algebra,
vibrations,
fault tolerant computing,
vibration isolation,
magnetic bearings
Topics:
Bearings,
Currents,
Failure,
Magnetic bearings,
Magnetic fields,
Rotors,
Simulation,
Machinery
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.Copyright © 2002
by ASME
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