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Energy Balance in Vortex-Induced-Vibration of an Inverted Pendulum

[+] Author Affiliations
P. Dong, A. Voorhees, P. Atsavapranee, S. Kuchnicki, H. Benaroya, T. Wei

Rutgers University, Piscataway, NJ

Paper No. FEDSM2002-31353, pp. 1179-1184; 6 pages
doi:10.1115/FEDSM2002-31353
From:
  • ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
  • Volume 1: Fora, Parts A and B
  • Montreal, Quebec, Canada, July 14–18, 2002
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3615-0 | eISBN: 0-7918-3600-2
  • Copyright © 2002 by ASME

abstract

High resolution Digital Particle Image Velocimetry has been used to measure terms in the integral fluid energy transport equation. These data have been incorporated into a scientifically rigorous Hamilton’s Principle approach for modeling fluid-structure interactions. The interaction being modeled is the vortex-induced motion of a circular cylinder mounted like an inverted pendulum in a water tunnel. This paper describes the experimental methodology used to acquire key modeling data, i.e. kinetic energy transport and work across the boundaries of an integral control volume. There is also a presentation of a simple analysis showing that competition between vortex shedding and cylinder oscillation frequencies give rise to observed beating phenomena.

Copyright © 2002 by ASME

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