Blade monitoring system

In one embodiment, a blade monitoring system (120) includes: at least one computing device configured to monitor a compressor (4) during a load change by performing actions comprising: extracting a dynamic component of a blade time-of-arrival (TOA) deviation signal in response to the load change on...

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Bibliographic Details
Main Author BADAMI, VIVEK VENUGOPAL
Format Patent
LanguageEnglish
French
German
Published 25.03.2015
Subjects
BLASTING
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
ENGINE PLANTS IN GENERAL
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
NON-POSITIVE DISPLACEMENT PUMPS
PHYSICS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
REGULATING
STEAM ENGINES
WEAPONS
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Summary:In one embodiment, a blade monitoring system (120) includes: at least one computing device configured to monitor a compressor (4) during a load change by performing actions comprising: extracting a dynamic component of a blade time-of-arrival (TOA) deviation signal in response to the load change on the compressor (4); calculating, using the dynamic component, at least one of: a natural frequency of the GT compressor blade (10) during the load change, an overshoot of the GT compressor blade (10) during the load change, a rise time of the compressor blade during the load change, a damping factor of the compressor blade during the load change, or a settling time of the GT compressor blade (10) after the load change; and determining whether the GT compressor blade (10) is damaged based upon the at least one of: the natural frequency, the overshoot, the rise time, the damping factor, or the settling time.
Bibliography:Application Number: EP20110167813