FEM Analysis of Wind Turbine Stator Core Lifting Structure based on Ansys Workbench

During the production process of wind turbine, the stator core needs to be lifted several times to complete transportation, impregnation, assembly, etc., so the lifting lugs are added on both sides of the stator core to meet the lifting requirements. In order to evaluate the structural strength of the lifting lugs on both sides of the stator core, Ansys Workbench is used to carry out structural static analysis of the lifting state of the stator core. The analysis results show that the maximum equivalent stress of the stator core under the lifting state is 83 MPa, which is significantly lower than the yield strength of the lifting lug material Q235B, which is 235 MPa. Taking the safety factor of the stator core 1.5, the allowable stress of the stator core lifting state is 157 MPa, and the maximum equivalent stress of 83 MPa is far less than the allowable stress of 157 MPa. Therefore, the stator core meets the safe use conditions during the lifting process by using the lifting lug.