Method and apparatus for balancing
First Claim
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1. A rotating assembly with a spindle comprising:
- a first movable rotor and a second movable rotor which are deployed upon said rotating assembly and which are selectively movable about said spindle of said rotating assembly; and
a controller for controlling movement of said first movable rotor and said second movable rotor and adapted to calculate a value and to periodically modify said value and to cause said first movable rotor and said second movable rotor to move in accordance with said calculated value and said modified value, wherein said values are adjusted during a plurality of control iterations to reduce vibrational signals from an at least one vibration sensor.
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Abstract
A balanced rotating assembly with a spindle automatically provides balancer limits, which achieves a balancing state while substantially minimizing short term vibration increases and which provides for multi-plane balancer dithering.
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Citations
19 Claims
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1. A rotating assembly with a spindle comprising:
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a first movable rotor and a second movable rotor which are deployed upon said rotating assembly and which are selectively movable about said spindle of said rotating assembly; and a controller for controlling movement of said first movable rotor and said second movable rotor and adapted to calculate a value and to periodically modify said value and to cause said first movable rotor and said second movable rotor to move in accordance with said calculated value and said modified value, wherein said values are adjusted during a plurality of control iterations to reduce vibrational signals from an at least one vibration sensor.
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2. A rotating assembly, said rotating assembly including a controller for controlling a rotating assembly vibration comprising:
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at least a first movable rotor and a second movable rotor which are selectively movable about said rotating assembly; and at least one vibration sensor for communicating vibrational data to a controller, and at least one position sensor for providing positioning information to said controller on a position of said first movable rotor and on a position of said second movable rotor, said controller controlling movement of said first movable rotor and said second movable rotor and adapted to calculate values and to adjust at least two parameters during at least two control iterations, wherein said controller is effective to cause said first rotor and said second rotor to move in accordance with a calculated value to reduce vibrations sensed by said at least one vibration sensor. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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11. A rotating machinery assembly, said assembly comprising:
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at least one movable rotor member which is deployed upon said rotating machinery assembly, said at least one movable rotor member having a weight distribution, wherein said at least one movable rotor member is selectively movable to produce a corrective phasor with a correction magnitude and a correction phase angle;
a vibration sensor which senses a vibration and generates a vibration signal; anda controller for controlling said at least one movable rotor member wherein said controller receives said vibration signal from said vibration sensor and calculates a phasor value to selectively move said at least one movable rotor member to produce a corrective phasor to reduce said sensor vibration. - View Dependent Claims (12, 13, 14, 15)
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16. A method for vibration balancing a rotatable assembly, said method comprising the steps of:
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measuring a vibration of said assembly during a control interval; calculating a value during said control interval; adjusting at least one parameter based upon said calculated value; deploying a vibration balancing rotor upon said assembly; calculating a correction movement of said vibration balancing rotor as a function of said value; and moving said vibration balancing rotor with said correction movement. - View Dependent Claims (17, 18, 19)
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Specification