Improving the Structural Integrity of Composite Blades in Vertical Axis Wind Turbines: A Parametric Study Employing the Finite Element Method | ||
| Port-Said Engineering Research Journal | ||
| Volume 27, Issue 4, December 2023, Pages 124-133 PDF (1.08 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/pserj.2023.255114.1301 | ||
| Authors | ||
| Rasha Soliman1; Shaban Abdou1; Aly El Domiaty2; Mohamed Lotfy* 3 | ||
| 1Production and Mechanical Design department, Faculty of Engineering, Port Said University | ||
| 2Mechanical Engineering department, Faculty of Engineering, Suez Canal University | ||
| 3Aerospace Engineering Department, Faculty of Engineering, Cairo University | ||
| Abstract | ||
| The objective of this work is to conduct a stress analysis of an H-rotor vertical axis wind turbine (VAWT) blade under aerodynamic loads. The rotor blade is designed based on the maximum deflection and bending stresses at extreme loading conditions, specifically the maximum radial force acting on the blade. The impact of the tip speed ratio and blade pitch angle on the bending stress of the H-rotor VAWT is presented. Analytical beam theories are used to determine the maximum deformation and bending stress, which are then validated numerically using the finite element method (FEM) with ANSYS software. The blade is composed of S-2 fiberglass/Epoxy composite material. The stress analysis is performed on both a solid cross-section blade and a hollow blade with varying wall thickness. A comparison is made between the S-2 fiberglass/Epoxy and carbon fiber/Epoxy composites, revealing that carbon fiber composites induce greater deflection in the rotor blade compared to S-2 fiberglass blades. Additionally, it is concluded that the tip speed ratio directly affects both the bending stress and total deflection of the blade. | ||
| Keywords | ||
| Renewable Energy; VAWT; Tip Speed Ratio; Finite Element; Composite blades | ||
|
Statistics Article View: 138 PDF Download: 158 |
||
