流体参数对埋地管道破坏的影响分析
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摘要
在考虑流固耦合和断层活动作用的情况下,应用ADINA中流固耦合分析求解器ADINA-FSI,建立了埋地管道破坏分析的有限元模型,介绍了固体模型和流体模型的建模过程以及流固耦合计算过程、断层位移荷载加载和约束的实现以及模型参数选择等。依据计算结果,分析了管内介质及流速等参数对管道破坏的影响。管道内输送的介质密度和流速越大,管道越易破坏,故在埋地管道设计中应充分考虑管内介质的密度与流速。针对计算结果,提出了几点认识和建议。
Finite element model is constructed for the analysis of buried pipeline damage under fluid structure interaction (FSI) and fault movement by the application of ADINA-FSI. Modeling of solid and fluid model is analyzed,and model solution under fluid-structure interaction is introduced,displacement loads of faults movement are applied,and parameters of the model are defined through model preferences. Pipe is treated as bilinear elastic-plastic material and liquid is impressive material with constant properties,such as viscosity and density. Furthermore,velocity load is applied to surface by definition of load type of velocity. According to the calculating results,the influence of density and velocity of fluid on the damage of buried pipeline is analyzed. The larger the density and velocity of the fluid in pipe,the worse the pipeline damage,therefore,density and velocity of the fluid in pipe should be generally considered when buried pipe is designed. Finally,some suggestions for the design and protection of buried pipeline is made.
Finite element model is constructed for the analysis of buried pipeline damage under fluid structure interaction (FSI) and fault movement by the application of ADINA-FSI. Modeling of solid and fluid model is analyzed,and model solution under fluid-structure interaction is introduced,displacement loads of faults movement are applied,and parameters of the model are defined through model preferences. Pipe is treated as bilinear elastic-plastic material and liquid is impressive material with constant properties,such as viscosity and density. Furthermore,velocity load is applied to surface by definition of load type of velocity. According to the calculating results,the influence of density and velocity of fluid on the damage of buried pipeline is analyzed. The larger the density and velocity of the fluid in pipe,the worse the pipeline damage,therefore,density and velocity of the fluid in pipe should be generally considered when buried pipe is designed. Finally,some suggestions for the design and protection of buried pipeline is made.
引文
[1]朱庆杰,刘英利,蒋录珍,等.管土摩擦和管径对埋地管道破坏的影响[J].地震工程与工程振动,2006,26(3):197-199.Zhu Q J,Liu Y L,Jiang L Z,et al.Analysis of buried pipeline damage affected by pipe-soil friction and pipe radius[J].Earthquake Engineering and Engi-neering Vibration,2006,26(3):197-199.
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[7]张智勇,沈荣瀛.充液直管管系中的固-液耦合振动响应分析[J].振动工程学报,2000,13(3):455-461.Zhang Z Y,Shen R Y.Fluid-structure interaction of the straight liquid-filled piping system[J].Journal of Vibration Engineering,2000,13(3):455-461.
[8]张智勇,沈荣瀛,王强.充液管道系统的模态分析[J].固体力学学报,2001,22(2):143-149.Zhang Z Y,Shen R Y,Wang Q.The modal analysis of the liquid-filled pipe system[J].Acta Mechanica Solida Sinica,2001,22(2):143-149.
[9]王世忠,于石声,赵阳.流体输送管道的固-液耦合特性[J].哈尔滨工业大学学报,2002,34(2):141-144.Wang S Z,Yu S S,Zhao Y.Solid-liquid coupling characteristics of fluid-conveying pipes[J].Journal of Harbin Institute of Technology,2002,34(2):141-144.
[10]黄宏伟,胡昕.顶管施工力学效应的数值模拟分析[J].岩石力学与工程学报,2003,22(3):400-406.Huang H W,Hu X.3D numerical analysis on con-struction mechanics effect of pipe-jacking[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(3):400-406.
[11]李大勇,吕爱钟,曾庆军.内撑式基坑工程周围地下管线的性状分析[J].岩石力学与工程学报,2004,23(4):682-687.Li D Y,LA Z,Zeng Q J.Behavior analysis of buried pipeline response to nearby excavation pit with braced retaining structure[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(4):682-687.
[12]余振翼,魏纲.顶管施工对相邻平行地下管线位移影响因素分析[J].岩土力学,2004,25(3):441-445.Yu Z Y,Wei G.Influencing factor analysis of sewage pipe project on the migration of parallel buried pipeline[J].Rock and Soil Mechanics,2004,25(3):441-445.
[13]魏纲,徐日庆,黄斌.长距离顶管管道的失稳分析[J].岩石力学与工程学报,2005,24(8):1427-1432.Wei G,Xu R Q,Huang B.Analysis of stability fail-ure for pipeline during long distance pipe jacking[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(8):1427-1432.
[2]郭恩栋,余世舟,吴伟.地下管道工程震害分析[J].地震工程与工程振动,2006,26(3):180-183.Guo E D,Yu S Z,Wu W.Seismic damage analysis of buried pipeline engineering[J].Earthquake Engineer-ing and Engineering Vibration,2006,26(3):180-183.
[3]Bathe K J,Hahn,W.On transient analysis of fluid-structure systems[J].Journal of Computers and Structures,1978,10(2):383-391.
[4]王世忠,王茹.三维管道固液耦合振动分析[J].哈尔滨工业大学学报,1992,24(4):43-49.Wang S Z,Wang R.Solid-liquid coupled vibration analysis of3D piping system[J].Journal of Harbin In-stitute of Technology,1992,24(4):43-49.
[5]王世忠,刘玉兰,黄文虎.输送流体管道的固-液耦合动力学研究[J].应用数学和力学,1998,19(11):987-993.Wang S Z,Liu Y L,Huang W H.Dynamics researchon solid-liquid coupling characteristics of fluid-convey-ing pipes[J].Applied Mathematics and Mechanics,1998,19(11):987-993.
[6]冯振宇,赵凤群.固-液耦合Timoshenko管道的稳定性分析[J].应用力学学报,1999,16(3):47-52.Feng Z Y,Zhao F Q.Stability analysis of solid liquid coupling Timoshenko pipes[J].Chinese Journal of Applied Mechanics,1999,16(3):47-52.
[7]张智勇,沈荣瀛.充液直管管系中的固-液耦合振动响应分析[J].振动工程学报,2000,13(3):455-461.Zhang Z Y,Shen R Y.Fluid-structure interaction of the straight liquid-filled piping system[J].Journal of Vibration Engineering,2000,13(3):455-461.
[8]张智勇,沈荣瀛,王强.充液管道系统的模态分析[J].固体力学学报,2001,22(2):143-149.Zhang Z Y,Shen R Y,Wang Q.The modal analysis of the liquid-filled pipe system[J].Acta Mechanica Solida Sinica,2001,22(2):143-149.
[9]王世忠,于石声,赵阳.流体输送管道的固-液耦合特性[J].哈尔滨工业大学学报,2002,34(2):141-144.Wang S Z,Yu S S,Zhao Y.Solid-liquid coupling characteristics of fluid-conveying pipes[J].Journal of Harbin Institute of Technology,2002,34(2):141-144.
[10]黄宏伟,胡昕.顶管施工力学效应的数值模拟分析[J].岩石力学与工程学报,2003,22(3):400-406.Huang H W,Hu X.3D numerical analysis on con-struction mechanics effect of pipe-jacking[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(3):400-406.
[11]李大勇,吕爱钟,曾庆军.内撑式基坑工程周围地下管线的性状分析[J].岩石力学与工程学报,2004,23(4):682-687.Li D Y,LA Z,Zeng Q J.Behavior analysis of buried pipeline response to nearby excavation pit with braced retaining structure[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(4):682-687.
[12]余振翼,魏纲.顶管施工对相邻平行地下管线位移影响因素分析[J].岩土力学,2004,25(3):441-445.Yu Z Y,Wei G.Influencing factor analysis of sewage pipe project on the migration of parallel buried pipeline[J].Rock and Soil Mechanics,2004,25(3):441-445.
[13]魏纲,徐日庆,黄斌.长距离顶管管道的失稳分析[J].岩石力学与工程学报,2005,24(8):1427-1432.Wei G,Xu R Q,Huang B.Analysis of stability fail-ure for pipeline during long distance pipe jacking[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(8):1427-1432.
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