基于ANSYS Workbench的采油树管道响应谱分析  

Response Spectrum Analysis of Pile of Christmas Tree by ANSYS Workbench

作　　者：尹汉军[1] 刘昌领[2] 姜瑛[1] 何宁强[1] 

机构地区：[1]海洋石油工程股份有限公司,天津300450 [2]中国石油大学(北京)海洋油气研究中心,北京102249

出　　处：《石油矿场机械》2015年第1期13-16,共4页Oil Field Equipment

基　　金：国家科技重大专项"深水水下应急维修装备与技术"子课题"深水水下应急维修方法研究与半物理仿真系统研制"(2011ZX05027-005-001)

摘　　要：针对采油树管道计算其固有频率和模态振型,在此基础上分析其在波浪谱曲线激励下的振动情况。结果表明:在输油管道和转换通道末端是振动幅度最大的部位,主振方向为x方向;横向波浪谱对结构振动的影响远大于纵向波浪谱;生产主阀处的应力最大,输油管道上端弯头处的应变最大。通过增大管道直径和壁厚、减小弯头数量、增加管道支吊架等措施提高管道刚度,以达到减小管道振动的目的。For pipelines of Christmas tree, the natural frequencies and modat shapes of pipelines were calculated, then, the response spectrum by the wave was calculated based on the result o{ the modal analysis. And the conclusion shows that the largest vibration amplitude happens on the end of pipeline,the main vibration direction is x direction, and the influence of transverse wave spec- trum is much greater than that of longitudinal wave, besides,the maximum stress occurs on the main valve, and the maximum strain happens on the upper elbow of the oil pipelines. The vibration can be reduced by enhancing the stiffness of the pipelines based on increasing the diameter and wall thickness of the pipes ,reducing the number of elbows and installing pipe hangers.

关 键 词：采油树 管道 模态分析 响应谱分析 

分 类 号：TE931.101[石油与天然气工程—石油机械设备]