圆弧形拱式跨越管道的动力特性分析
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摘要
本文对圆弧形拱式跨越管道进行模态分析,采用附加质量法和流体单元两种不同的方法来模拟管道内液体,分析流固耦合效应对管道动力特性的影响,并比较了两种方法的异同。同时还分析了矢高、直径、管壁厚、跨度等参数对管道自振频率的影响。本文得到的结果,能为圆弧形拱式跨越管道的设计和计算提供参考。
The modals of circular arch suspending pipeline was analyzed in the paper.Added mass method and fluid element method were used to simulate fluid in pipeline respectively.The influence of fluid-solid coupling on pipeline's dynamic characteristics was researched.Then results on dynamic characteristics of two methods were compared.In addition,the effects of span height,diameter,thickness and span on natural frequency were studied.The results obtained from this paper can provide reference for the design and calculation of circular arch suspending pipeline.
The modals of circular arch suspending pipeline was analyzed in the paper.Added mass method and fluid element method were used to simulate fluid in pipeline respectively.The influence of fluid-solid coupling on pipeline's dynamic characteristics was researched.Then results on dynamic characteristics of two methods were compared.In addition,the effects of span height,diameter,thickness and span on natural frequency were studied.The results obtained from this paper can provide reference for the design and calculation of circular arch suspending pipeline.
引文
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[5]杨吉新,张可等.基于ANSYS的流固耦合动力分析方法[J].船海工程.2008,37(6):86-89 Yang Jixin,Zhang Ke.Dynamic Analysis Method for Fluid- Structure Interaction Based on ANSYS.Ship & Ocean Engineering[J].2008,37(6):86-89
[6]Holt Ashley.Bending Vibration of Pipe Line Containing Flowing Fluids.Journal of Applied Mechanics[J].1950,17(3):229-232
[7]毛庆,张景绘.处理载流管道流固耦合效应的附加质量法.第十三届全国反应堆结构力学会议,北京,2004 Mao Qing,Zhang Jinghui.Added Mass Approach to Fluid-Stmclure Coupling Effect of Pipes Conveying Fluid[C].National Conference of 13th Structural Mechanics In Reactor Technology,Beijing,2004
[8]陈江.基于黏弹性人工边界的拱坝动力响应分析[J].水利与建筑工程学报.2010,8(2):63-66 Chen Jiang.Seimic Response Analysis of Arch Dams Based on Viscous-Elastic Artificial Boundary Condition[J].Journal Of Water Resources And Architectural Engineering.2010,8(2):63-66
[9]胡仁喜,党沙沙主编.ANSYS 13.0/FLOTRAN流场分析从入门到精通[M].北京:机械工业出版社,2011第1版Hu Renxi,Dang Shasha.ANSYS 13.0/FLOTRAN Flow Field Analysis[M].Beijing:China Machine Press,2011(1)
[2]胡盈辉,庄茁等.大型储液罐在地震作用下的附加质量法研究[C].北京力学会第十六届学术年会论文集:294-303 Hu Yinghui,Zhuang Zhuo.Added Mass Approach to a Large-Scale Liquid-Storage Tank Under Seismic Excitations[C].Beijing Society of Theoretical and Applied Mechanics I6th Annual Forum:294-303
[3]冯涛,李庆亮等.基于ANSYS的拱坝模态分析[J].河南科学.2011,29(9):1081-1084 Feng Tao,Li Qingliang.Modal Analysis for Arch Dam Based on ANSYS[J].Henan Science.2011,29(9):1081-1084
[4]黄耀英,孙大伟等.两种库水附加质量模型的重力坝动力响应研究.人民长江.2009.40(7):64-66 Huang Yaoying,Sun Dawei.Research on Dynamic Response of Concrete Gravity Dam In Two Types of Hydrodynamic Added Mass Dam Models[J].Yangtze River,2009,40(7):64-66
[5]杨吉新,张可等.基于ANSYS的流固耦合动力分析方法[J].船海工程.2008,37(6):86-89 Yang Jixin,Zhang Ke.Dynamic Analysis Method for Fluid- Structure Interaction Based on ANSYS.Ship & Ocean Engineering[J].2008,37(6):86-89
[6]Holt Ashley.Bending Vibration of Pipe Line Containing Flowing Fluids.Journal of Applied Mechanics[J].1950,17(3):229-232
[7]毛庆,张景绘.处理载流管道流固耦合效应的附加质量法.第十三届全国反应堆结构力学会议,北京,2004 Mao Qing,Zhang Jinghui.Added Mass Approach to Fluid-Stmclure Coupling Effect of Pipes Conveying Fluid[C].National Conference of 13th Structural Mechanics In Reactor Technology,Beijing,2004
[8]陈江.基于黏弹性人工边界的拱坝动力响应分析[J].水利与建筑工程学报.2010,8(2):63-66 Chen Jiang.Seimic Response Analysis of Arch Dams Based on Viscous-Elastic Artificial Boundary Condition[J].Journal Of Water Resources And Architectural Engineering.2010,8(2):63-66
[9]胡仁喜,党沙沙主编.ANSYS 13.0/FLOTRAN流场分析从入门到精通[M].北京:机械工业出版社,2011第1版Hu Renxi,Dang Shasha.ANSYS 13.0/FLOTRAN Flow Field Analysis[M].Beijing:China Machine Press,2011(1)
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