On the energy harvesting potential of piezoaeroelastic systems

Erturk, A.; Vieira, W. G. R.; De Marqui, C.; Inman, D. J.
May 2010
Applied Physics Letters;5/3/2010, Vol. 96 Issue 18, p184103
Academic Journal
This paper investigates the concept of piezoaeroelasticity for energy harvesting. The focus is placed on mathematical modeling and experimental validations of the problem of generating electricity at the flutter boundary of a piezoaeroelastic airfoil. An electrical power output of 10.7 mW is delivered to a 100 kΩ load at the linear flutter speed of 9.30 m/s (which is 5.1% larger than the short-circuit flutter speed). The effect of piezoelectric power generation on the linear flutter speed is also discussed and a useful consequence of having nonlinearities in the system is addressed.


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