梁式渡槽“改进拟三维”流固耦合模型研究

基于结构动力分析理论和流固耦合分析理论，在已有的“拟三维”梁式渡槽建模方法的基础上，提出了“改进拟三维”梁式渡槽流固耦合建模方法。模型不仅能实现渡槽与大晃动水体的双向同步耦合，而且大大提高了计算效率，可用于多跨渡槽联合的流固耦合计算分析。除此之外，模型还可以用于计算带有加劲结构型式的渡槽。以东深供水渡槽的某段为例 , 采用提出的“改进拟三维”模型进行地震时程分析 , 计算结果与三维模型计算结果吻合良好，计算效率高。因此，提出的模型可以作为梁式渡槽分析计算的实用静、动力分析方法。

Study on Improved Pseudo-three-dimensional Fluid Structure Interaction model of Beam Aqueduct Structures

On the basis of the structural dynamic analysis theory and fluid structure interaction theory,this paper puts forward the "improved pseudo three-dimensional" beam aqueduct computing mode replacing the existing "pseudo three-dimensional" beam aqueduct model.In this paper,the model can not only achieve two-way synchronization FSI(fluid structure interaction) of the aqueduct with large sloshing water,but also greatly improves calculating efficiency.So the model can be used for calculating and analyzing the joi...