Abstract:Both of the attaching loads and the coupling displacements of gravity in horizontal loaded static test for
wind turbine blade is analyzed in this paper. The numerical results show that the superimposition of gravity has great
effect on the measured values, which lead to the risk of overloading the target load in some section. In order to reduce
the overloading peak value of the equivalent load ,it is suggested that the comprehensive application of optimizing in鄄
stallation angle of the blade and loading direction should be used based on FEM.