Dynamic Behavior of Inflatable Dams

充气坝基本上是圆柱形的膜结构 其沿它们的两个沿着连接到刚性水平基座 发生器. 它们可以通过水、空气或两者的组合来膨胀 水和空气。 长圆柱的二维振动 膜是在以前的赠款下进行研究的。 这 续篇将检查沿大坝沿着变化的运动。 在 此外，还将分析溢流的条件， 当大坝用于控制水流时适用。 条件 这可能导致不稳定性将从理论上进行研究 并且是实验性的。 这项研究的结果将提高我们的 了解充气坝的动态行为，并将 在预防未来的失败和更广泛的 这种经济型结构的应用。//

Inflatable dams are essentially cylindrical membrane structures which are attached to a rigid horizontal base along two of their generators. They may be inflated by water, air, or a combination of water and air. Two-dimensional vibrations of long cylindrical membranes were investigated under the previous grant. This continuation will examine motions which vary along the dam. In addition, conditions of overflow will be analyzed, which are applicable when the dam is used to control water flow. Conditions which may lead to instability will be investigated theoretically and experimentally. The results of this study will improve our understanding of the dynamic behavior of inflatable dams, and will be useful in the prevention of future failures and in the wider application of this economical type of structure.//