Method and system for monitoring rotating blade health
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United States of America Patent
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Aug 22, 2017
Issued Date -
Jan 30, 2014
app pub date -
Jul 24, 2013
filing date -
Jul 25, 2012
priority date (Note) -
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Abstract
A method and system for establishing sets of blade frequency values for each rotating blade of a rotor assembly at two or more different points in time and determining an indication of blade health from the change in the blade frequency values is provided. Blade frequency values are determined by receiving measurements of vibratory responses from blade monitoring equipment (20) and processing via a processing device (30) vibration data as a system of rotating blades to extract a frequency of each blade. Sets of blade frequency values are compared to determine a change in the blade frequency values for each rotating blade to provide the indication of blade health.
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