Finite Element Analysis of Wind Turbine Nacelle Chassis Based on ANSYS Workbench

The model of the nacelle chassis of 810KW wind turbine was built by Solid Works graphics software, Using GH Bladed wind turbine aerodynamic load software and ANSYS Workbench finite element software on the joint simulation, Stress cloud and safety factor cloud were calculated based on the emergency brake and 9 level wind two kinds of working conditions, the results showed that: under the working condition of emergency brake, the nacelle chassis and bolt’s maximum stress were beyond the allowable stress of material. Under the working condition of 9 level wind nacelle chassis satisfied the requirement of strength, but in the main shaft bearing appeared stress concentration.