MW Wind Turbine Blade Test Modal Analysis
Establishing the wind turbine blade kinematical equation and analyzing the effect of the blade modal parameters on the amplitude amplification coefficient Getting damping of the blade from the large amplitude free attenuation test of 3.6 MW wind turbine blade by using the modal analysis method. Using the way not to measure force, the low-order natural frequency of the blade could be got by exerting sine excitation on the edge of the blade. The bending moment equation was shown on the positive direction along the blade based on the quality of unit. Making a database can attain the bending moment for the any position. Test result showed that using the test modal analysis method could get the wind turbine blade parameters effectively. This method was simple and effective.
wind turbine blade test modal method damping natural frequency bending moment
Leian Zhang Jianzhong Wu Xiangcheng Wu Linchun Wang
School of Mechanical Engineering TongJi University Shanghai China
国际会议
太原
英文
106-109
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）