Methods for optimized engine balancing based on flight data
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United States of America Patent
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May 24, 2016
Grant Date -
Feb 4, 2016
app pub date -
Aug 1, 2014
filing date -
Aug 1, 2014
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Abstract
Methods for balancing rotating machinery, such as gas turbine engines, to minimize vibrations. An optimal engine balance solution is obtained using a hybrid optimization technique based on vibration data from one or more vibration sensors and corresponding influence coefficients which quantify the change in vibration level at the vibration sensors due to a unit increase in unbalance level at unbalance source locations. More specifically, balance weight and angular position are determined based on multiple optimization methods which concurrently process the vibration data, the multiple optimization methods comprising local and global optimization algorithms.
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