Radial magnetic vibration damping apparatus, bearing support assemblies, and operational methods
AssigneeSiemens Industry, Inc.
InventorsEmam Hashish, Nicholas G. Lang
Life of this patent
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Abstract
A bearing support assembly adapted to support and damp radial vibration of a rotor shaft of a vertical motor is disclosed. The bearing support assembly has a thrust bearing adapted to couple to a rotor shaft and carry axial thrust loads along an axial axis, and a radial magnetic damping apparatus having one or more magnetic field-producing members adapted to provide a radially-acting magnetic force to act upon the rotor shaft to reduce radial vibration thereof. Vertical motors and methods of operating the vertical motors are disclosed, as are other aspects.
Claims20
A bearing support assembly, comprising:
- a thrust bearing adapted to couple to a rotor shaft and carry axial thrust loads along an axial axis;
- and
- a radial magnetic damping apparatus having one or more magnetic field-producing members adapted to provide radial magnetic force acting on the rotor shaft to reduce radial vibration thereof.
A bearing support assembly, comprising:
- a bearing housing;
- a rotor shaft;
- a thrust bearing assembly mounting the rotor shaft to the bearing housing and configured to carry axial thrust loads;
- and
- a radial magnetic damping apparatus having at least one magnetic field-producing member adapted to provide a radial magnetic force to reduce radial vibration transmitted between the rotor shaft and the bearing housing.
A method of damping radial vibration of rotor shaft of a vertical motor, comprising:
- providing a thrust bearing assembly coupled to the rotor shaft and carrying axial thrust loads along an axial axis;
- and
- providing a radial magnetic damping apparatus coupled to the rotor shaft and having one or more magnetic field-producing members;
- and
- producing, by the one or more axial magnetic field-producing members, a radial restorative force acting on the rotor shaft to reduce radial vibration thereof.
Dependencies are inferred from the claim text.