Rotor balancing method and apparatus
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United States of America Patent
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Jul 11, 2023
Grant Date -
May 27, 2021
app pub date -
Apr 18, 2019
filing date -
May 9, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A rotor balancing method for a gas turbine on a balancing machine, includes performing a base run by running the rotor at an intended balance speed and measuring the vibrations at a first pedestal; carrying out partial balancing; performing a first influence run by fitting a first balancing weight to a first correction plane in order to reduce vibrations at the first pedestal; performing a second influence run by fitting a first calibration weight to a second correction plane, running the rotor at the intended balance speed and measuring the vibrations at the first pedestal and the second pedestal, and removing the first calibration weight; and carrying out final balancing of the rotor by fitting a final balancing weight to the first correction plane and a second balancing weight to the second correction plane dependent on vibrations measured as part of the first influence run and the second influence run.
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