| Analysis of stress and applied forces and their importance in wind turbines |
| Paper ID : 1220-NICAME1402 |
| Authors: |
|
Milad Zaremanesh * Tehran university |
| Abstract: |
| Wind turbines with a horizontal axis of rotation with a high capacity of producing electrical power have made the dream of building large wind power plants possible. The high costs of designing, building and maintaining these types of turbines make it necessary to identify the critical conditions in causing breakage in the blade and eliminate it. In the past years, basic methods were used to simulate the wind flow and estimate the aerodynamic force applied on the blade. The nature of the turbulent flow created onthe blade and the mutual influence of the wind flow and the deformations created on the blade reveal the necessity of using more accurate methods to calculate the aerodynamic force. In this research, the stress created in the length of the blade, which is caused by the passage of the wind flow around it, was measured with the help of fluid and solid interaction. For this purpose, first the geometric shape of the blade and layering of its composite materials were done in Ansys ACP software, and the analysis of the wind flow around the blade, the stress created by the wind flow on the blade for different wind speeds was obtained. With the help of the FSI function in the Ansys workbench software, the stress obtained from the analysis of the wind flow was applied to the blade in the form of compressive and tensile forces in the static structural environment in the Ansys workbench software. |
| Keywords: |
| Wind turbines, Ansys software, Airfoil, Aerodynamic forces of wind |
| Status : Paper Accepted (Oral Presentation) |
