This paper describes an experimental study for a self-excited vibration in the thin film wrapped around an air-turn bar. The characteristics of a self-excited vibration are investigated by obtaining time histories of the film deflection and distributions of a steady pressure and a pressure fluctuation at a surface of the airturn bar. The experimental results show that this system has two different types of vibration modes. One is a low-frequency mode which the film vibrates radially with respect to the the air-turn bar. The other is a high-frequency mode which the film flaps in the out-of-plane direction of the film. Moreover, a stability diagram of the self-excited vibration is obtained by changing the flow rate and the tensile force acting on the film. It is shown that the low-frequency vibration mode occurs when the flow rate and the tensile force are large, and the high-frequency vibration mode occurs at any flow rate and tensile force in this experiment.
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ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
August 1–5, 2010
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5451-8
PROCEEDINGS PAPER
Experimental Study of Self-Excited Vibration in a Thin Film Wrapped Around an Air-Turn Bar
Kensuke Hara,
Kensuke Hara
Aoyama Gakuin University, Sagamihara, Kanagawa, Japan
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Masahiro Watanabe
Masahiro Watanabe
Aoyama Gakuin University, Sagamihara, Kanagawa, Japan
Search for other works by this author on:
Kensuke Hara
Aoyama Gakuin University, Sagamihara, Kanagawa, Japan
Masahiro Watanabe
Aoyama Gakuin University, Sagamihara, Kanagawa, Japan
Paper No:
FEDSM-ICNMM2010-30913, pp. 631-638; 8 pages
Published Online:
March 1, 2011
Citation
Hara, K, & Watanabe, M. "Experimental Study of Self-Excited Vibration in a Thin Film Wrapped Around an Air-Turn Bar." Proceedings of the ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2010 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration and Noise: Volume 3, Parts A and B. Montreal, Quebec, Canada. August 1–5, 2010. pp. 631-638. ASME. https://doi.org/10.1115/FEDSM-ICNMM2010-30913
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