3223 すきま流れ振動の評価指針の検討

概要

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Parameter survey was conducted regarding leakage-flow-induced vibrations of continuous system, and a design guideline of the structure including leakage flow was considered. The effects of mass ratio, structural damping, flow passage resistance, kinematic wave velocity, tension acting on the plate, were estimated analytically. In the case of low-density fluid such as gas, if nondimensional velocity was less than two, the results suggested that the leakage-flow-induced vibration might not occur. In the case of high-density fluid such as liquid, instability could also occur in the low nondimensional velocity region. To establish design guideline, we need to conduct parameter survey in the wide range, to consider the effects of boundary conditions, to verify it with experimental data, and so on.
社団法人日本機械学会の論文
2000-07-31