Vortex-induced oscillations of two flexible circular cylinders coupled mechanically

This paper deals with an experimental investigation of the effect of mechanical coupling on the vortex-induced vibration of a twin-cylinder bundle. The cylinders are in tandem and staggered arrangements and vibrate in-phase and out-of-phase. The separation between the cylinders ranges between 10 and...

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Bibliographic Details
Published in:Journal of wind engineering and industrial aerodynamics 1997-07, Vol.69, p.293-302
Main Authors: Brika, D., Laneville, A.
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Circular cylinder
Climatology and bioclimatics for buildings
Exact sciences and technology
Mechanical coupling
Vibration
Vortex
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Summary:This paper deals with an experimental investigation of the effect of mechanical coupling on the vortex-induced vibration of a twin-cylinder bundle. The cylinders are in tandem and staggered arrangements and vibrate in-phase and out-of-phase. The separation between the cylinders ranges between 10 and 25 diameters while the stagger angle varies between 0° and 20° for a typical separation of 13 diameters. For each relative position between the cylinders the dynamic response of the in-phase vibration is different from the out-of-phase vibration. The response greatly dictated by the results of the aerodynamic coupling investigated previously by the authors. A hysteresis phenomenon with discontinuities is observed in the response of the bundle and is explained in the light of the results of previous studies.
ISSN:0167-6105
1872-8197
DOI:10.1016/S0167-6105(97)00162-1