本文選題：橡膠壩 + 自振特性��； 參考：《水電能源科學》2016年05期

【摘要】：為保證實際運行中橡膠壩的結構安全,考慮壩體和水體流固耦合的相互作用,利用有限單元法計算了充水式橡膠壩的自振頻率和周期,研究了不同壩高、內壓比及上游擋水等對橡膠壩自振特性的影響。結果表明,充水式橡膠壩的振動為壩體的整體振動,自振頻率較小,振動方向主要為順河向;隨著壩高的升高,壩體的基頻變小,自振周期變大;隨著內壓比的增加,壩體的基頻變大,自振周期變小;上游擋水時的自振頻率較無水時的有明顯降低,可為橡膠壩設計提供參考。
[Abstract]:In order to ensure the structural safety of rubber dam in practical operation, considering the interaction between dam body and fluid-structure of water body, the natural vibration frequency and period of rubber dam filled with water are calculated by finite element method, and the different dam heights are studied.The influence of internal pressure ratio and upstream water retaining on the natural vibration characteristics of rubber dam.The results show that the vibration of the filled rubber dam is the whole vibration of the dam body, the natural vibration frequency is small, the vibration direction is mainly along the river, with the increase of the dam height, the foundation frequency of the dam becomes smaller, the natural vibration period becomes larger, and with the increase of the internal pressure ratio, the foundation frequency of the dam becomes smaller, and the natural vibration period increases with the increase of the internal pressure ratio.The foundation frequency of dam body becomes larger and the natural vibration period becomes smaller, and the natural vibration frequency of upstream water retaining is obviously lower than that of anhydrous dam, which can be used as a reference for the design of rubber dam.
【作者單位】： 河海大學力學與材料學院;山東省淮河流域水利管理局規(guī)劃設計院;
【基金】：國家“十二五”科技支撐計劃(2012BAD10B02)
【分類號】：TV644

【參考文獻】

相關期刊論文 前6條

1 李巖;蔡新;崔朕銘;楊杰;陳姣姣;馮龍龍;;基于Mooney-Rivlin模型的充水式橡膠壩工作性態(tài)研究[J];水電能源科學;2015年04期

2 葉紅玲;邵沛澤;陳寧;劉趙淼;;流固耦合輸流管系統(tǒng)的動力學分析及參數(shù)影響[J];北京工業(yè)大學學報;2015年02期

3 廖芳珍;石自堂;;橡膠壩設計與管理中幾個問題的探討[J];中國農村水利水電;2014年12期

4 廖湘輝;丁明;韋仕龍;陳大偉;;三峽升船機縱導向升降施工平臺模態(tài)分析[J];水力發(fā)電;2013年10期

5 趙X;王春青;張e，

本文編號：1758287