Method for measuring the unbalance of flexible rotors by means of position-measuring sensors
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United States of America Patent
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Nov 3, 2020
Grant Date -
Aug 8, 2019
app pub date -
Jan 28, 2019
filing date -
Feb 7, 2018
priority date (Note) -
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Abstract
In a method for identifying an unbalance correction for flexible rotors (1), the rotor (1) is rotatably mounted in two bearing devices. An RPM sensor (4) records the speed of the rotor (1) and a radial movement of the rotor (1) is recorded, by means of position sensors (3) at measuring points (6), during an unbalance measurement run or a plurality of unbalance measurement runs for different rotor speeds. The measured values recorded are fed to an evaluation device (5), which determines the eccentricity measured values assigned to the measuring points (6) by means of expanding the influence coefficient method, and therefore unbalances are determined per plane and eccentricities are determined per measuring point for each measurement run.
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