Finite element analysis of fluid-structure interaction in buried liquid-conveying pipeline

【作者】 朱庆杰； 陈艳华； 刘廷权； 代兆立；

【Author】 ZHU Qing-jie CHEN Yan-hua LIU Ting-quan DAI Zhao-li (1.College of Civil Engineering and Architecture,Hebei Polytechnic University,Tangshan 063009,China; 2.Jidong Oilfield Company,China National Petroleum Corporation,Tangshan 063200,China)

【机构】 College of Civil Engineering and Architecture,Hebei Polytechnic University； Jidong Oilfield Company,China National Petroleum Corporation；

【摘要】 <正>Long distance buried liquid-conveying pipeline is inevitable to cross faults and under earthquake action,it is necessary to calculate fluid-structure interaction(FSI) in finite element analysis under pipe-soil interaction.Under multi-action of site,fault movement and earthquake,finite element model of buried liquid-conveying pipeline for the calculation of fluid structure interaction was constructed through combinative application of ADINA-parasolid and ADINA-native modeling methods,and the direct computing method of two-way fluid-structure coupling was introduced.The methods of solid and fluid modeling were analyzed, pipe-soil friction was defined in solid model,and special flow assumption and fluid structure interface condition were defined in fluid model.Earthquake load,gravity and displacement of fault movement were applied,also model preferences.Finite element research on the damage of buried liquid-conveying pipeline was carried out through computing fluid-structure coupling.The influences of pipe-soil friction coefficient,fault-pipe angle,and liquid density on axial stress of pipeline were analyzed,and optim.um parameters were proposed for the protection of buried liquid-conveying pipeline.更多还原

【Abstract】 Long distance buried liquid-conveying pipeline is inevitable to cross faults and under earthquake action,it is necessary to calculate fluid-structure interaction(FSI) in finite element analysis under pipe-soil interaction.Under multi-action of site,fault movement and earthquake,finite element model of buried liquid-conveying pipeline for the calculation of fluid structure interaction was constructed through combinative application of ADINA-parasolid and ADINA-native modeling methods,and the direct computing method of two-way fluid-structure coupling was introduced.The methods of solid and fluid modeling were analyzed, pipe-soil friction was defined in solid model,and special flow assumption and fluid structure interface condition were defined in fluid model.Earthquake load,gravity and displacement of fault movement were applied,also model preferences.Finite element research on the damage of buried liquid-conveying pipeline was carried out through computing fluid-structure coupling.The influences of pipe-soil friction coefficient,fault-pipe angle,and liquid density on axial stress of pipeline were analyzed,and optim.um parameters were proposed for the protection of buried liquid-conveying pipeline.更多还原