地震动和断层作用下埋地管道破坏的流固耦合分析  

FSI Analysis of Buried Pipeline Damage under Ground Motion and Faulting

作　　者：陈艳华[1] 陈鸿雁 朱庆杰[1] 

机构地区：[1]河北理工大学地震工程研究中心,唐山063009 [2]中国石油辽河石油公司勘探研究院,盘锦124010

出　　处：《震灾防御技术》2007年第4期377-383,共7页Technology for Earthquake Disaster Prevention

基　　金：国家自然科学基金项目(50678059)资助

摘　　要：在考虑流固耦合和地震荷载作用的情况下,应用ADINA(Automatic Dynamic Incremental Nonlinear Analysis)中流固耦合分析求解器ADINA-FSI,建立了地下管道破坏分析的有限元模型,介绍了建模和计算过程,地震荷载加载和断层活动约束的实现,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 of buried pipeline damage under fluid structure interaction （FSI） and earthquake loads is constructed through the application of ADINA-FSI. Modeling and model solution are introduced, earthquake loads and displacement loads of faults movement are applied, and parameters of the model are defined through model preferences. According to the calculated results, the influence of density and velocity of fluid on the damage of buried pipeline is analyzed. With the increase of density and velocity of the fluid in pipe, the damage to pipeline becomes worse. Therefore, density and velocity of the fluid in pipe should be generally considered when buried pipe is designed. Finally, some advice for the design and protection of buried pipeline is proposed.

关 键 词：埋地管道 数值模拟 ADINA 建模 流固耦合 

分 类 号：TU990.3[建筑科学—市政工程]