In this study, the stability of a structure and mitigation of the vibration of a structure subjected to annular flow are investigated when the parameters of the structure and fluid have variability or uncertainty. The equations of motion of the structure and fluid are given by the Euler-Bernoulli-type partial differential equation and the Navier–Stokes equation, respectively. Hence, the fluid–structure coupled system has variability. The fluid–structure coupled equation considering variability is derived from the above-mentioned equations. By drawing the root locus of the coupled equation, the stability of the coupled system with variability is investigated. Because the parameters of structure and fluid have variability, the critical flow velocity also varies. The effect of parameter variability on the critical flow velocity variability is investigated. Furthermore, to reduce the coupled vibration of the system with variability, a control input is used. Through adequate control, the coupled system with variability is stabilized.
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ASME 2013 Pressure Vessels and Piping Conference
July 14–18, 2013
Paris, France
Conference Sponsors:
- Pressure Vessels and Piping Division
- Nondestructive Evaluation Engineering Division
ISBN:
978-0-7918-5568-3
PROCEEDINGS PAPER
Basic Study on Mitigation of Annular-Flow-Induced Vibration by Considering Variability in Parameters of Structure and Fluid
Atsuhiko Shintani
,
Atsuhiko Shintani
Osaka Prefecture University, Sakai, Osaka, Japan
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Hirokazu Isono
,
Hirokazu Isono
Osaka Prefecture University, Sakai, Osaka, Japan
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Tomohiro Ito
,
Tomohiro Ito
Osaka Prefecture University, Sakai, Osaka, Japan
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Chihiro Nakagawa
Chihiro Nakagawa
Osaka Prefecture University, Sakai, Osaka, Japan
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Atsuhiko Shintani
Osaka Prefecture University, Sakai, Osaka, Japan
Hirokazu Isono
Osaka Prefecture University, Sakai, Osaka, Japan
Tomohiro Ito
Osaka Prefecture University, Sakai, Osaka, Japan
Chihiro Nakagawa
Osaka Prefecture University, Sakai, Osaka, Japan
Paper No:
PVP2013-97845, V004T04A054; 8 pages
Published Online:
January 17, 2014
Citation
Shintani, A, Isono, H, Ito, T, & Nakagawa, C. "Basic Study on Mitigation of Annular-Flow-Induced Vibration by Considering Variability in Parameters of Structure and Fluid." Proceedings of the ASME 2013 Pressure Vessels and Piping Conference. Volume 4: Fluid-Structure Interaction. Paris, France. July 14–18, 2013. V004T04A054. ASME. https://doi.org/10.1115/PVP2013-97845
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