纤维—混凝土复合管的流固耦合振动模态分析  

Fluid-Structure Coupling Vibration Modes of Fiber-Concrete Composite Pipe

作　　者：邓晓霞 刘艳慧[1] 岩罕彦 DENG Xiaoxia;LIU Yanhui;AI Hanyan(School of Architectural Engineering,Yunnan Agricultural University,Kunming 650201,China)

机构地区：[1]云南农业大学建筑工程学院,昆明650201

出　　处：《河南科学》2023年第6期859-866,共8页Henan Science

基　　金：云南省教育厅科学研究基金项目(2022Y295)。

摘　　要：为研究玻璃纤维-混凝土复合管的振动特性,分析了该管的结构,建立了流固耦合仿真模型,形成了该管的单向流固耦合分析方法,继而对该管进行了谐响应分析.结果表明,该管道在流固耦合状态下,形变大于自由状态时的形变,固有频率会有所降低,管道因振动产生破坏的可能性大幅提升;而谐响应分析结果更清晰地证明了管道在低阶振动模态容易发生破坏.In order to study the vibration characteristics of the fiberglass-concrete composite pipe,the structure of the tube was analyzed,and the fluid-structure interaction simulation model was established.The unidirectional fluid-structure interaction analysis method of the tube was formed,and then the harmonic response analysis of the pipe was carried out.The analysis results show that the deformation of the pipeline in the fluid-structure interaction state is greater than the deformation in the free state,the natural frequency would reduce,and the possibility of pipeline damage due to vibration would greatly increase.The harmonic response analysis results more clearly prove that the pipeline is prone to failure in the low-order vibration mode.

关 键 词：ANSYS 单向流固耦合 模态分析 谐响应分析 

分 类 号：TU502.6[建筑科学—建筑技术科学]