System and method for detecting vibrations in rotating machinery
AssigneeRolls-Royce Deutschland Ltd & Co KG
InventorLucia Ciciriello
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Abstract
Embodiments of the invention are shown in the figures, where a system for vibration detection is shown, the system comprising: one or more drivelines including a rotatable component rotatable about a rotational axis relative to another component; an electrical machine having a rotor and a stator rotatable with respect to one another, the rotor being arranged to at least one of drive and be driven by a part of the driveline, the electrical machine being adapted to provide signals indicative for at least one of a motion and a force between the rotor and the stator and a torque applied on the rotor; and an analysis unit adapted to receive the signals and to detect a vibration signature of the rotatable component with respect to the other component based on the signals.
Claims20
A system comprising:
- a driveline including a rotatable first component rotatable about a rotational axis relative to another second component;
- an electrical machine including a rotor and a stator rotatable with respect to one another, the rotor being arranged to at least one chosen from drive the driveline and be driven by the driveline, the electrical machine being adapted to provide signals indicative of at least one chosen from 1) a motion and a force between the rotor and the stator and 2) a torque applied on the rotor;
- and
- an analysis unit adapted to receive the signals and to detect a vibration signature of the first component with respect to the second component based on the signals;
- wherein the electrical machine comprises a plurality of coils configured to supply at least a portion of the torque applied on the rotor, wherein the signals are produced by the plurality of coils, the signals being based on differences of at least one chosen from voltages or electrical currents of the plurality of coils.
A control system, comprising:
- an analysis unit adapted to receive signals from an electrical machine having a rotor and a stator rotatable with respect to one another, the rotor being arranged to at least one chosen from drive a driveline and be driven by the driveline, the signals being indicative of at least one chosen from 1) a motion and a force between the rotor and the stator and 2) a torque applied on the rotor, wherein the analysis unit is adapted to detect a vibration signature of a rotatable first component with respect to another second component based on the signals;
- wherein the electrical machine comprises a plurality of coils configured to supply at least a portion of the torque applied on the rotor, wherein the signals are produced by the plurality of coils, the signals being based on differences of at least one chosen from voltages or electrical currents of the plurality of coils.
A method for detection of vibration at a driveline including a rotatable first component rotatable about a rotational axis relative to another second component, wherein a rotor of an electrical machine is arranged to at least one chosen from drive the driveline and be driven by the driveline, the method comprising the steps of:
- providing, by the electrical machine, signals indicative of at least one chosen from 1) a motion and a force between the rotor and the stator and 2) a torque applied on the rotor;
- and
- detecting, by an analysis unit receiving the provided signals, a vibration signature of the first component with respect to the second component based on the signals;
- providing that the electrical machine comprises a plurality of coils configured to supply at least a portion of the torque applied on the rotor, wherein the signals are produced by the plurality of coils, the signals being based on differences of at least one chosen from voltages or electrical currents of the plurality of coils.
Dependencies are inferred from the claim text.