Methods and systems to determine rotor imbalance
First Claim
Patent Images
1. A system, comprising:
- a stator component;
a rotor component rotating inside the stator component;
a plurality of features disposed on the periphery of the stator component or the rotor component;
a processing subsystem for;
determining a rotor imbalance at least based upon a feature-to-feature speed variation of the plurality of features, wherein the feature-to-feature speed variation is a function of a central-feature-to-feature speed and a plurality of baseline-central-feature-to-feature speeds of the plurality of features; and
determining an orientation of the rotor imbalance by;
identifying a maximum feature-to-feature speed variation value and a minimum feature-to-feature speed variation value in one or more desired curves of the feature-to-feature speed variation;
identifying a first feature identification number corresponding to the maximum feature-to-feature speed variation value and a second feature identification number corresponding to the minimum feature-to-feature speed variation value; and
determining the orientation of the rotor imbalance around the first feature identification number and the second feature identification number.
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Abstract
A system is presented. The system includes a stator component, a rotor component rotating inside the stator component, a plurality of features disposed on the periphery of the stator component or the rotor component, and a processing subsystem for determining at least one of an amount of rotor imbalance and an orientation of the rotor imbalance at least based upon feature-to-feature speed variation of the plurality of features.
20 Citations
15 Claims
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1. A system, comprising:
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a stator component; a rotor component rotating inside the stator component; a plurality of features disposed on the periphery of the stator component or the rotor component; a processing subsystem for; determining a rotor imbalance at least based upon a feature-to-feature speed variation of the plurality of features, wherein the feature-to-feature speed variation is a function of a central-feature-to-feature speed and a plurality of baseline-central-feature-to-feature speeds of the plurality of features; and determining an orientation of the rotor imbalance by; identifying a maximum feature-to-feature speed variation value and a minimum feature-to-feature speed variation value in one or more desired curves of the feature-to-feature speed variation; identifying a first feature identification number corresponding to the maximum feature-to-feature speed variation value and a second feature identification number corresponding to the minimum feature-to-feature speed variation value; and determining the orientation of the rotor imbalance around the first feature identification number and the second feature identification number. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method, comprising:
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determining a rotor imbalance at least based upon feature-to-feature speed variation of a plurality of features disposed on the periphery of a stator component or a rotor component rotating inside the stator component, wherein the feature-to-feature speed variation is a function of a central-feature-to-feature speed and a plurality of baseline-central-feature-to-feature speeds of the plurality of features; determining an orientation of the rotor imbalance by; identifying a maximum feature-to-feature speed variation value and a minimum feature-to-feature speed variation value in one or more desired curves of the feature-to-feature speed variation; identifying a first feature identification number corresponding to the maximum feature-to-feature speed variation value and a second feature identification number corresponding to the minimum feature-to-feature speed variation value; and determining the orientation of the rotor imbalance around the first feature identification number and the second feature identification number. - View Dependent Claims (13, 14, 15)
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Specification