【作者】 李少静； 雷步芳； 李永堂；

【Author】 Li Shao-jing,Lei Bu-fang,Li Yong-tang (Taiyuan university of science and technology,Taiyuan 030024,China)

【机构】 太原科技大学；

【摘要】 本文运用Ansys Workbench12.0模拟仿真软件,分析了有无流固耦合存在时管道振动模态的变化,以及在流固耦合作用存在下,管道约束的不同对管道固有频率、等效应力和总变形量的影响。结果表明:流固耦合作用的存在使得管道振动固有频率略微增加;适当的约束可减小管道所承受的等效应力、减小管道的变形量,提高管道系统整体刚度,从而达到减少振动,减小管道局部能量损失及降低噪声的目的。更多还原

【Abstract】 The change of the pipeline vibration modal with or without the Fluid-Structure Interaction was analysed in this article,using the simulation software of ANSYS Workbench 12.0.It was also analysed that if the pipeline constraints change,the pipeline natural frequency,the equivalent stress and the total deformation will be how to change. The result shows;the existing of the Fluid-Structure Interaction make the pipeline natural frequency slightly increased; the proper constraints can reduce the equivalent stress imposed on the pipeline,reduce the deformation of the pipeline,improve the overall rigidity of the piping system,so as to achieve the purpose of reducing the vibration, reducing the local energy loss of the pipeline and lowering the noise.更多还原