Optimal Vibration Control of Bladeless Wind Power Generators

Document Type : Article

Authors

Department of Solid Mechanics, Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran.

Abstract

The global energy crisis has drawn growing attention to bladeless wind power generators (BWPGs), which convert wind-induced vibrations into electricity. Their efficiency depends on keeping the natural frequency within resonance. This study presents an optimal control strategy for BWPGs using variable structural stiffness governed by the rod’s effective length. Continuous tuning keeps the natural frequency aligned with the vortex-shedding frequency, maximizing harvested power. The influence of stiffness, mass, and damping is analyzed, and design parameters such as geometry are optimized to maintain resonance under changing wind speeds. Numerical simulations agree with experiments, confirming the accuracy and effectiveness of the proposed model and optimization method.

Keywords

Main Subjects

References

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Sharif Journal of Mechanical Engineering
Volume 41, Issue 2 - Serial Number 2
February 2026
Pages 137-150

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