A review of full-scale structural testing of wind turbine blades

Structural health monitoring of offshore wind turbines: A review through the Statistical Pattern Recognition Paradigm

“…Some of the methods that were introduced in Section 2 [125,[133][134][135][136] include vibration monitoring-based methods (accelerometers, piezo or micro-electromechanical systems (MEMS)), strain (strain gauge or fiber optic cables), ultrasonic waves which are widely applied in composite structures (piezoelectric transducer), acoustic emissions (usually barrel sensors), impedance techniques, laser vibrometry, impedance tomography, thermography (infrared cameras), laser ultrasound, nanosensors, and buckling health monitoring. The necessary sensors for implementation of these techniques are described below.…”

Rotating blade vibration analysis using photogrammetry and tracking laser Doppler vibrometry

“…Photogrammetry has been used for the dynamic analysis of turbomachines in work done by other authors [9][10][11][12][13][14]. A 3D photogrammetric image correlation algorithm based on the Newton-Raphson method has been used to show that the non-contact technique can be used to provide necessary information for early stage damage detection in wind turbines [15].…”

Horizontal dual-point excitation and fatigue test of full-scale wind turbine blade

“…The reliability of wind turbine blades should be validated through fatigue test [1][2][3][4] . The single-point fatigue test of the large-blade requires high power for the exciter, moreover, bending moment on the blade applied by the single-point exciter could not fit well with target value in the blade long direction [5][6] .…”