Fluidelastic effects may be responsible for instabilities of heat exchanger tubes when the fluid flow reaches the critical velocity. The fluidelastic phenomenon is usually studied on experimental mock-ups, which may display only one critical velocity. In this paper, a method based on active vibration control is proposed in order to derive several critical velocities for fluidelastic instability corresponding to several different values of damping, which is artificially varied on the same mock-up. Experimental tests are performed on a flexible tube equipped with piezoelectric actuators in a rigid array under air-water cross-flow. It is shown that the reduced critical velocities thus obtained fit well in a classical stability map. [S0739-3717(00)01603-2]
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October 2000
Technical Papers
Measurement of Critical Velocities for Fluidelastic Instability Using Vibration Control
S. Caillaud,
S. Caillaud
Commissariat a` l’E´nergie Atomique, De´partement de Me´canique et Technologie, 91191 Gif/Yvette, FRANCE
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E. de Langre,
E. de Langre
LadHyX, E´cole Polytechnique, 91128 Palaiseau, FRANCE
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P. Piteau
P. Piteau
Commissariat a` l’E´nergie Atomique, De´partement de Me´canique et Technologie, 91191 Gif/Yvette, FRANCE
Search for other works by this author on:
S. Caillaud
Commissariat a` l’E´nergie Atomique, De´partement de Me´canique et Technologie, 91191 Gif/Yvette, FRANCE
E. de Langre
LadHyX, E´cole Polytechnique, 91128 Palaiseau, FRANCE
P. Piteau
Commissariat a` l’E´nergie Atomique, De´partement de Me´canique et Technologie, 91191 Gif/Yvette, FRANCE
Contributed by the Technical Committee on Vibration and Sound for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received March 1999; revised March 2000. Associate Technical Editor: B. Yang.
J. Vib. Acoust. Oct 2000, 122(4): 341-345 (5 pages)
Published Online: March 1, 2000
Article history
Received:
March 1, 1999
Revised:
March 1, 2000
Citation
Caillaud, S., de Langre, E., and Piteau, P. (March 1, 2000). "Measurement of Critical Velocities for Fluidelastic Instability Using Vibration Control ." ASME. J. Vib. Acoust. October 2000; 122(4): 341–345. https://doi.org/10.1115/1.1286206
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