下端放水を行うシェル形長径間ゲートの流体関連振動に関する理論解析 : (第1報, 運動方程式の導出)

概要

論文の詳細を見る
Shell-type long-span gates in which the upstream gate face consists of vertical and inclined skin plates (also referred to as weir plates) possess two degrees of freedom, one each in the streamwise (horizontal) and vertical directions, due to the gate's bending flexibility in these two directions. The streamwise and vertical directions can become closely which one another through hydrodynamic forces acting on the weir plates, resulting in sever eself-excited vibrations. Here, a two-dimensional model study of a shell-type long-span gate with small gate opening was performed to examine the validity of an asumption of a hydrodynamic pressure acting on the inclined weir plate. In addition, the hydrodynamic pressure acting on the upstream gate face and the exact equation of motion of the flow-induced vibration of shell-type long-span gates were described.
社団法人日本機械学会の論文
1997-02-25