刘翠伟, 李玉星, 王武昌, 孟令雅, 张帆. 输油气管道结构振动声辐射仿真分析[J]. 油气储运, 2012, 31(10): 750-755. DOI: 10.6047/j.issn.1000-8241.2012.10.008
引用本文: 刘翠伟, 李玉星, 王武昌, 孟令雅, 张帆. 输油气管道结构振动声辐射仿真分析[J]. 油气储运, 2012, 31(10): 750-755. DOI: 10.6047/j.issn.1000-8241.2012.10.008
Liu Cuiwei, Li Yuxing, Wang Wuchang, Meng Lingya, Zhang Fan. Simulation analysis of structural vibration sound radiation of oil and gas pipeline[J]. Oil & Gas Storage and Transportation, 2012, 31(10): 750-755. DOI: 10.6047/j.issn.1000-8241.2012.10.008
Citation: Liu Cuiwei, Li Yuxing, Wang Wuchang, Meng Lingya, Zhang Fan. Simulation analysis of structural vibration sound radiation of oil and gas pipeline[J]. Oil & Gas Storage and Transportation, 2012, 31(10): 750-755. DOI: 10.6047/j.issn.1000-8241.2012.10.008

输油气管道结构振动声辐射仿真分析

Simulation analysis of structural vibration sound radiation of oil and gas pipeline

  • 摘要: 针对输油气管道中流体与结构之间的耦合作用引发的管道疲劳破坏和辐射噪声问题,采用有限元法进行流固耦合振动特性分析,得到固有振动频率和振动模态,分析流固耦合作用对输油气管道固有振动频率的影响;采用ANSYS软件进行谐响应分析,得到简谐激励作用下管道振动的位移、速度和加速度等参数;将谐响应分析得到的位移数据导入声学软件LMS Virtual.Lab,基于间接边界元法模拟得到管道振动的辐射声场,从而建立管道振动声辐射模型。研究结果表明:径厚比、是否考虑流固耦合作用以及管道形态均对管道的固有频率有不同程度的影响;不同径厚比管道的壁厚越小,辐射声压越大。输油气管道结构振动声辐射仿真分析可为管道辐射噪声控制和管道结构优化提供借鉴。

     

    Abstract: In view of pipeline fatigue failure and radiation noise caused by the coupling between fluids and structure of oil and gas pipeline, a finiteelement method is used to analyze fluid structure interaction vibration performance in order to obtain natural vibration frequency, andvibration mode and impacts of the fluid structure interaction on the natural vibration frequency of the oil and gas pipeline is analyzed.Harmonic response analysis is made using ANSYS software to obtain displacement, velocity, acceleration and other parameters of pipelinevibration under harmonic excitation. Displacement data obtained from the harmonic response analysis is introduced into the acousticssoftware LMS Virtual. Lab to get the radiation sound field of pipeline vibration based on simulation by the indirect boundary element methodso as to build a pipeline vibration sound radiation model. The results show that for the radius-thickness ratio, if fluid-structure interactioneffect is considered or not as well as pipeline forms lay varying degrees of impacts on the natural frequency of the pipeline. When the wallthickness of pipeline with different radius-thickness ratios is smaller, the sound radiation pressure will be larger. Simulation analysis ofstructural vibration sound radiation of oil and gas pipeline can provide a reference to the pipeline radiated noise control and pipeline structure optimization.

     

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