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TECHNICAL PAPERS

Flutter Limits and Behavior of a Flexible Thin Sheet in High-Speed Flow— II: Experimental Results and Predicted Behaviors for Low Mass Ratios

[+] Author and Article Information
Nobuyuki Yamaguchi

Department of Mechanical Engineering, Meisei University, Hino City, Tokyo 191-8506, Japan

Tooru Sekiguchi

Y. D. K. Ltd., Oshitate, Inaki City, Tokyo 206-0811, Japan

Kazuhiko Yokota

Department of Mechanical Engineering, Osaka University, Faculty of Engineering Science, Toyonaka City 560-8531, Japan

Yoshinobu Tsujimoto

Department of Mechanical Engineering, Osaka University, Faculty of Engineering Science, Toyonaka City 560-8531, Japan

J. Fluids Eng 122(1), 74-83 (Sep 17, 1999) (10 pages) doi:10.1115/1.483228 History: Received April 01, 1999; Revised September 17, 1999
Copyright © 2000 by ASME
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References

Figures

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The sheet flutter test setup and the wind tunnel
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Effects of mass ratios on the flutter boundary (relative stiffness)
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Effects of mass ratios on the flutter frequency (reduced frequency)
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Predicted flutter frequency versus mass ratio normalized by the first mode natural frequency in vacuum
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Flutter modes of the displacements and pressure differences along the sheet for three mass ratios for the high to the medium μ regions
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Predicted modes of the sheet vibrations and the pressure differences affected by mass ratios and fluid frictions
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Predicted effects of fluid frictions on the flutter limit relative stiffness (a) and on the reduced frequencies (b) for mass ratio of 0.005 83
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Predicted vibration modes for a mass ratio of 0.0058 for changing surface friction coefficient
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Predicted distributions of fluid work input into the sheet for the region of high-to-low-mass ratios
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Predicted distributions of fluid work input into the sheet for a very small mass ratio of 0.005 83 affected by surface friction forces
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Tendency of flutter speeds with sheet width

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