Unsteady Pressure Response of a liqud in a Cylindrical Container Subject to Vertical Vibration
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概要
- 論文の詳細を見る
This paper reports experimental studies on the dynamic behavior of a liquid in a cylindrical container subject to high-frequency vertical oscillations. The pressure response, surface wave motion and container wall response induced by vertical vibration were investigated. Measurements were made of the amplitude of the time-varying pressure, free surface oscillation and container wall vibration. It was found that the amplitude of pressure increased exponentially with time when the excitation acceleration exceeded a threshold value. The amplitude of pressure had a maximum at time t_c, which decreased as the excitation acceleration increased. It was observed that the variation of the amplitude of free surface motion and the container wall vibration with time showed similar trends as the pressure variation. These facts can be explained by the increase in the void fraction ; the wave velocity of the liquid-bubble-shell system approaches the resonant velocity as the void fraction increases. The time t_c was analyzed by treating the pressure wave as a one-dimensional acoustic wave. The experimental results of t_c were compared with numerical values, and good agreement was found.
- 一般社団法人日本機械学会の論文
- 1988-05-15
著者
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HASHIMOTO Hiroyuki
Institute of Biological Sciences, University of Tsukuba
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Sudo Seiichi
Institute Of High Speed Mechanics Tohoku University
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Sudo Seiichi
Institute Of Fluid Science Tohoku University
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Hashimoto Hiroyuki
Institute Of High Speed Mechanics Tohoku University
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Hashimoto Hiroyuki
Institute High Speed Mechanics Tokyo University
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