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    Volume 47, Issue 5 (September 2019)

    Special Issue Paper

    Testing and Validation of a Novel Segmented Wind Turbine Blade

    (Received 26 July 2016; accepted 7 May 2018)

    Published Online: 2018

    CODEN: JTEVAB

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    Abstract

    This article presents the structural testing and analyses of a segmented horizontal axis wind turbine blade. The blade’s mass and center of gravity are first determined. Free vibration tests are performed, and the natural frequencies are obtained. Static bending tests in flapwise and edgewise directions are conducted with acoustics emission monitoring. The segmented blade was able to sustain the test loads. However, some superficial defects appeared and were detected by the acoustics emission sensors. Finally, the resonant fatigue test is performed for ten million cycles. The variation of the stiffness against the loading cycles is used to diagnose the initiation of fatigue cracks. Based on the testing results, some modifications are proposed in the design and manufacturing approaches to avoid the noted defects.

    Author Information:

    Abdulaziz, Ahmed H.
    Group for Advanced Research in Dynamic Systems (ASU-GARDS), Design and Production Engineering Department, Ain Shams University, Cairo,

    Elsabbagh, Adel
    Group for Advanced Research in Dynamic Systems (ASU-GARDS), Design and Production Engineering Department, Ain Shams University, Cairo,

    Elnady, Tamer
    Group for Advanced Research in Dynamic Systems (ASU-GARDS), Design and Production Engineering Department, Ain Shams University, Cairo,


    Stock #: JTE20170238

    ISSN:0090-3973

    DOI: 10.1520/JTE20170238

    Author
    Title Testing and Validation of a Novel Segmented Wind Turbine Blade
    Symposium ,
    Committee D30