Dynamic Behavior of Inflatable Dams

充气坝的动态行为

• 批准号: 9008518
• 负责人: Raymond Plaut
• 金额: $ 13.43万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-12-01 至 1993-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9008518&HistoricalAwards=false
• 关键词: Dynamic; Behavior; Inflatable; Dams

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.//

充气水坝本质上是圆柱形薄膜结构，它沿着两台发电机固定在一个刚性的水平底座上。它们可能会被水、空气或水和空气的混合物充气。在以前的资助下，研究了长圆柱膜的二维振动。这篇续篇将考察沿大坝变化的运动。此外，还将对溢流条件进行分析，这些条件适用于大坝控制水流。可能导致不稳定的条件将从理论和实验上进行研究。这项研究的结果将加深我们对充气坝动力特性的理解，并将有助于防止未来的破坏和这种经济类型的结构的更广泛的应用。