NDLI: Linear and Nonlinear Aeroelastic Energy Harvesting Using Electromagnetic Induction

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Anice´zio, Marcela De Melo Erturk, Alper Junior, Carlos De Marqui Daniel, J. Inman
Copyright Year	2011
Abstract	Transforming aeroelastic vibrations into electricity for low-power generation has received growing attention over the past couple of years. The goal is to convert wind energy into electricity for powering small electronic components employed in wireless applications such as structural health monitoring. The potential applications of interest for aeroelastic energy harvesting range from lifting components in aircraft structures to several other engineering problems involving wireless electronic components located in high wind areas. This paper investigates linear and nonlinear aeroelastic energy harvesting using electromagnetic induction. A two-dimensional airfoil with plunge and pitch degrees of freedom (DOF) is considered. The electromagnetic induction is introduced to the plunge DOF by means of a coil-magnet combination and the nonlinearities are introduced through the pitch DOF. The governing dimensionless aeroelastic equations are given with electromagnetic coupling and a resistive load in the electrical domain. The effects of several dimensionless system parameters (electromechanical coupling, load resistance, and coil inductance) on the dimensionless electrical power as well as the dimensionless linear flutter speed are investigated. After considering the linear problem, combined nonlinearities are investigated to improve the electrical output. A cubic stiffness of the hardening type is combined with the free play nonlinearity to make the resulting nonlinear oscillations bounded with acceptable amplitude over a wide range of airflow speeds. The results and the dimensionless simulations presented in this work can be employed for designing and optimizing scalable aeroelastic energy harvesters for wind energy harvesting using electromagnetic induction.
Sponsorship	Aerospace Division
Starting Page	361
Ending Page	367
Page Count	7
File Format	PDF
ISBN	9780791854723
DOI	10.1115/SMASIS2011-5171
Volume Number	ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2
Conference Proceedings	ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
Language	English
Publisher Date	2011-09-18
Publisher Place	Scottsdale, Arizona, USA
Access Restriction	Subscribed
Subject Keyword	Wind Degrees of freedom Vibration Electromagnetic induction Electronic components Oscillations Airfoils Structural health monitoring Energy harvesting Magnets Stress Electricity (physics) Design Hardening Air flow Wind energy Simulation Flutter (aerodynamics) Stiffness Engineering simulation Aircraft
Content Type	Text
Resource Type	Article

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