This study develops an optimization method specifically for embedded sensors for structural health monitoring of a composite laminated aircraft structure. The chosen cost function is the component lifetime, balancing both the positive benefits of the condition-based monitoring enabled by the sensor information with the negative costs of the structural-performance degradation. The optical-fiber spacing is optimized, rather than the placement of individual sensors. Sensor interaction with damage and sensor-feature extraction are included into the optimization problem through experimentally derived probabilistic models. The resulting sensor-placement optimization has regions of decreasing laminate lifetime and regions of increasing laminate lifetime as a function of sensor spacing. A critical sensor spacing is also calculated, below which sensors are not recommended to be embedded.


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    Title :

    Optimization of embedded sensor placement for structural health monitoring of composite airframes


    Additional title:

    Optimierung der Platzierung eingebetteter Sensorelemente für die Strukturüberwachung von Flugzeugbauteilen aus Verbundwerkstoff


    Contributors:
    Park, Chun (author) / Peters, Kara (author)

    Published in:

    AIAA Journal ; 50 , 11 ; 2536-2545


    Publication date :

    2012


    Size :

    10 Seiten, 15 Bilder, 26 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English