Share Email Print
cover

Proceedings Paper

Energy harvesting measurements from stall flutter limit cycle oscillations
Author(s): Jasper Chen; Adit Dhanushkodi; Christopher L. Lee
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Results from experiments using a two-degree-of-freedom airfoil system are presented. Air speeds of the airfoil are determined at which dynamic flutter can be initiated and where limit cycle oscillations (LCO) can be excited by initial (pitch or plunge) displacements. LCO’s with large pitch angle displacements attributed to stall flutter behavior are measured. The LCO oscillations are converted into electric power by an electromagnetic-inductor device. The energy harvester consists of three magnets in which one magnet floats between two fixed magnets. The force-displacement relationship of the harvester is best described by a fifth-order polynomial. The integration of the harvester into the airfoil system introduces nonlinear stiffness into the vertical (plunge) direction. When the LCO has been initiated, displacement amplitudes and resulting power generation are measured.

Paper Details

Date Published: 1 April 2014
PDF: 9 pages
Proc. SPIE 9057, Active and Passive Smart Structures and Integrated Systems 2014, 90570G (1 April 2014); doi: 10.1117/12.2045233
Show Author Affiliations
Jasper Chen, Franklin W. Olin College of Engineering (United States)
Adit Dhanushkodi, Franklin W. Olin College of Engineering (United States)
Christopher L. Lee, Franklin W. Olin College of Engineering (United States)


Published in SPIE Proceedings Vol. 9057:
Active and Passive Smart Structures and Integrated Systems 2014
Wei-Hsin Liao, Editor(s)

© SPIE. Terms of Use
Back to Top