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Proceedings Paper

Test results for an SMA-actuated vortex wake control system
Author(s): Todd R. Quackenbush; Alan J. Bilanin; Bernie F. Carpenter
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Paper Abstract

This paper describes recent test result obtained on a prototype SMA-actuated foil that serves as a key element in a vortex wake control scheme for lifting surfaces. Previous papers have described the theoretical basis and feasibility studies for this scheme - which is based on a novel wake control known as vortex leveraging - as well as prior work on device design, test planning, and fabrication. The critical item in the realization of this scheme is a Smart Vortex Leveraging Tab (SVLT), a device designed to provide perturbations in the vortex system downstream of lifting surfaces at frequencies and amplitudes carefully selected to accelerate overall wake breakup. The paper summarizes the background of the effort, but focuses on the detail design and fabrication techniques used in the construction of a prototype SVLT and the results of water tunnel tests of a near full-scale prototype device.

Paper Details

Date Published: 9 July 1999
PDF: 11 pages
Proc. SPIE 3674, Smart Structures and Materials 1999: Industrial and Commercial Applications of Smart Structures Technologies, (9 July 1999); doi: 10.1117/12.351545
Show Author Affiliations
Todd R. Quackenbush, Continuum Dynamics, Inc. (United States)
Alan J. Bilanin, Continuum Dynamics, Inc. (United States)
Bernie F. Carpenter, Lockheed Martin Astronautics (United States)


Published in SPIE Proceedings Vol. 3674:
Smart Structures and Materials 1999: Industrial and Commercial Applications of Smart Structures Technologies
Jack H. Jacobs, Editor(s)

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