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TECHNICAL PAPERS

Dynamic Stability of Flexible Bellows Subjected to Periodic Internal Fluid Pressure Excitation

[+] Author and Article Information
Masahiro Watanabe, Nobuyuki Kobayashi

Yuichi Wada

Department of Mechanical Engineering, Aoyama Gakuin University, 5-10-1, Fuchinobe, Sagamihara-shi, Kanagawa, Japan

J. Pressure Vessel Technol 126(2), 188-193 (May 05, 2004) (6 pages) doi:10.1115/1.1687380 History: Received September 09, 2002; Revised September 04, 2003; Online May 05, 2004
Copyright © 2004 by ASME
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References

Figures

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Schematic drawing of bellows subjected to periodic internal fluid pressure
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Details of bellows geometry
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Photograph of experimental setup
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Variation of natural frequencies with static pressure Pst
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Parametric instability boundaries (Pst=0)
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Time history of bellows strain under parametric excitation (primary instability of 1st mode)
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Spectrum of bellows strain under parametric excitation (primary instability of 1st mode)
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Time history of bellows strain under parametric excitation (primary instability of 2nd mode)
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Spectrum of bellows strain under parametric excitation (primary instability of 2nd mode)
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Effect of damping ratio ζ on parametric boundaries
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Effect of static pressure Pst on parametric instability boundaries

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