IRO Journals
Journal of Electrical Engineering and Automation

Fatigue Analysis of H-Rotor Blade and Savonius Blade for a Micro Hybrid Vertical Axis Wind Turbine

Open Access
Published: 12 August, 2026
Pages: 246-257
  • Kannan G.R. , Kannan G.R.
    Professor, Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul, India
    Professor, Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul, India
  • Nagaraj U. , Nagaraj U.
    UG Student, Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul, India
    UG Student, Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul, India
  • Neeshant P. , Neeshant P.
    UG Student, Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul, India
    UG Student, Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul, India
  • Pragadeeswaran M. , Pragadeeswaran M.
    UG Student, Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul, India
    UG Student, Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul, India
  • Yukesh L. Yukesh L.
    UG Student, Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul, India
    UG Student, Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul, India
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How to Cite

G.R., Kannan, Nagaraj U., Neeshant P., Pragadeeswaran M., and Yukesh L. 2026. “Fatigue Analysis of H-Rotor Blade and Savonius Blade for a Micro Hybrid Vertical Axis Wind Turbine”. Journal of Electrical Engineering and Automation 8 (3): 246-57. https://doi.org/10.36548/jeea.2026.3.007.
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Keywords

Hybrid Vertical Axis Wind Turbine
Fatigue Analysis
Savonius Rotor
Darrieus H-Rotor
Finite Element Analysis
Renewable Energy

Abstract

Hybrid Vertical Axis Wind Turbines (VAWTs) integrate the ability to self-start from a Savonius rotor with the aerodynamic efficiency of Darrieus H-Rotor to become well-suited for decentralized energy production when there are relatively low wind speeds. Nevertheless, the structural integrity of hybrid turbine blades under cyclic loads has not been thoroughly addressed. This research work provides a structural and fatigue analysis of micro-scale hybrid VAWT, which comprises of a Savonius rotor along with an H-Rotor with NACA 0015 airfoil, using finite element modeling. A 3D model was created and analyzed using ANSYS Workbench with wind speeds at 5–8 m/s. Structural analysis resulted in von Mises stress values ranging between 15 and 95 MPa, remains within the range of yield strength of Aluminium Alloy 6061-T6, confirming structural efficiency of the proposed design. Fatigue analysis based on Stress-Life (S-N) analysis technique showed a fatigue life of 10–10 cycles. Thus, the results obtained show that the design is structurally reliable and fatigue resistant.

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