System and method for determining lifetime of wind turbine blade

A method for monitoring stress on a wind turbine blade during loading is disclosed. The method includes capturing multiple images at respective locations of the blade. The method also includes measuring temperature at the respective locations based upon captured images. The method further includes c...

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Bibliographische Detailangaben
1. Verfasser: GEORGE SHERI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method for monitoring stress on a wind turbine blade during loading is disclosed. The method includes capturing multiple images at respective locations of the blade. The method also includes measuring temperature at the respective locations based upon captured images. The method further includes calculating stress applied on the blade at the respective locations based upon the measured temperature. The method also includes calculating stress applied on the blade at the respective locations based upon the measured temperature. The method further includes comparing the calculated stress with respective theoretical stress in a finite element model to predict lifetime of the blade. The method also includes alerting an operator in event that the calculated stress at one or more of the respective locations is above a pre-determined limit.