Dynamic Behavior of Inflatable Dams

充气坝的动态行为

• 批准号: 8505853
• 负责人: Raymond Plaut
• 金额: $ 19.65万
• 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: 1985
• 资助国家: 美国
• 起止时间: 1985-07-15 至 1988-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8505853&HistoricalAwards=false
• 关键词: Dynamic; Behavior; Inflatable; Dams

In this study, research on the dynamic behavior of inflatable dams will be undertaken. Such dams are used in the United States, Australia, and other countries for water impoundment, flood control, diversion of flow, raising spillway elevations, and other purposes. They also have potential application as a transportable flood control device. Even though a few of these dams have failed dynamically, published analyses have only considered static forces and deflections. The vibrations and dynamic response of inflatable dams will be studied systematically. The dams may be inflated by air, water, or a combination of air and water. The dam material acts like a membrane and cannot sustain bending or compression. The effects of various assumptions related to the fluid and membrane properties, such as incompressibility and inextensibility, will be investigated. Particular attention will be focused on conditions for local or global instability of the dam.

本文对充气坝的动力特性进行了研究， 进行。 美国、澳大利亚和 其他国家蓄水、防洪、引水、 流量，提高溢洪道高程和其他目的。 他们也有 作为可移动的防洪装置的潜在应用。 甚至 尽管这些大坝中有几座因动力原因而失败， 只考虑了静力和挠度。 的振动和 系统地研究了充气坝的动力响应。 坝可以通过空气、水或空气和水的组合充气。 水 大坝材料就像一层膜， 弯曲或压缩。 各种假设的影响， 流体和膜的性质，如不可压缩性， 不可扩展性，将进行研究。 将特别注意 重点研究大坝局部或整体失稳的条件。