DESIGN, FABRICATION AND VERIFICATION TESTING OF THE WIND TURBINE ROTOR BLADES FROM COMPOSITE MATERIALS

摘要

In this paper the design, fabrication and analysis of behavior by full-scale verification testing for the wind turbine rotor blade of composite laminated materials is given. The verification test program for the wind turbine rotor blade encompassed static and dynamic testing. The static tests of the blade involved experimental evaluation of torsional and flexional blade stiffness and its elastic axis position. Dynamic tests involved testing of vibratory characteristics and testing of blade fatigue characteristic. In structural vibration tests natural frequency, vibration modes and damping ratio for the structure were measured. The fatigue analysis of the structure of blade root section was performed after fatigue test cycles for detection of laminate separation, tolerance and distortion of crossections of structure.