水中管道顺流舞动水弹性分析  

Hydroelastic analysis of pipeline vibration in downstream flow

作　　者：张大朋[1] 白勇[1] 刘科伟[2] 朱克强[2] ZHANG Dapeng;BAI Yong;LIU Kewei;ZHU Keqiang(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China;Faculty of Maritime and Transportation,Ningbo University,Ningbo 31521,China)

机构地区：[1]浙江大学建工学院,浙江杭州310058 [2]宁波大学海运学院,浙江宁波315211

出　　处：《石油工程建设》2018年第2期30-33,共4页Petroleum Engineering Construction

摘　　要：海洋中蕴藏着大量的油气资源,为开发油气资源,需建设大量油气管道。海底管道在位运行的过程中,管道与海流、波浪等相互作用,会发生振动。提出了一种基于广义坐标法的水中管道顺流振动的分析模型,结合假设模态法,利用拉格朗日广义力的平衡方程,推导出水动力响应的计算公式并得到了管道振动的控制方程。模拟了水中管道顺流舞动的时间历程。分析了水中管道的结构设计的关键点,分析结果可为相关工程项目提供一定的理论参考。Oceans contain a large amount of marine oil and gas resources.In order to develop offshore oil and gas resources,a variety of marine pipelines are put into operation.During the operation of a marine pipeline,the pipeline will vibrate when interacting with currents and waves.Based on the generalized coordinate method,an analytical model of pipeline vibration in downstream flow has been proposed,combined with the hypothetical modal method,the calculation formula of the hydrodynamic response is derived to obtain the governing equation of pipeline vibration by using Lagrange generalized force balance equation.And the simulation of the time history of the pipeline vibration in downstream flow has been made.The key points of the submarine pipeline structural design are analyzed.The calculation results can provide a theoretical reference for the relevant engineering projects.

关 键 词：管道 广义坐标法 振动 水弹性 

分 类 号：TE973.92[石油与天然气工程—石油机械设备]