支吊架结构输油管道应变仿真及光纤布里渊散射实验研究  

Optical fiber Brillouin scattering experimental study and strain simulation of oil pipeline with support and hanger structure

作　　者：尉婷[1] 吴冰冰 龙万江 刘颖刚[1] 罗俊 WEI Ting;WU Bingbing;LONG Wanjiang;LIU Yinggang;LUO Jun(Key Laboratory of Photoelectricity Gas-oil Logging and Detecting,Ministry of Education of China,Xi'an University of Petroleum,Xi'an 710065,China)

机构地区：[1]西安石油大学光电油气测井与检测教育部重点实验室,西安710065

出　　处：《光通信技术》2022年第6期73-76,共4页Optical Communication Technology

基　　金：国家“863”计划项目(2009AA06Z203)资助;教育部科技创新工程重大项目培育项目(708087)资助;陕西省“13115”科技创新工程重大科技专项项目(2009ZDKG-42)资助;陕西省自然科学基础研究计划项目(2012JQ8015)资助;陕西省省级大学生创新创业训练计划项目(S202110705130)资助。

摘　　要：为了有效检测输油管道应变,首先,提出采用有限元软件对支吊架结构输油管道施加载荷,仿真管道表面应变分布,从而优化分布式光纤输油管线应变检测排布方式;然后,在实验中将传感光纤沿轴向黏贴于管道外表面,通过布里渊光时域分析仪(BOTDA)测量光纤布里渊频移,以对管道表面应变分布进行实时监测。对比仿真和实验数据可知,管道顶部和底部对应变敏感,且管道表面应变分布的仿真结果与实验数据基本吻合。In order to effectively detect the strain of oil pipeline,Firstly,the finite element software is proposed to apply load to the oil pipeline with support and hanger structure,and the strain distribution on the surface of the pipeline is simulated to optimize the strain detection arrangement mode of the distributed optical fiber oil pipeline.Then,the sensing fiber is pasted to the outer surface of the pipeline along the axial direction.The strain distribution on the pipeline surface is monitored in real time by measuring Brillouin frequency shift by brillouin optical time domain analyzer(BOTDA).Comparing the simulation and experimental data,it can be known that the top and bottom of the pipeline are sensitive to strain,and the simulation result of the strain distribution on the pipeline surface are basically consistent with the experimental measurement.

关 键 词：输油管道 管道应变分布 有限元分析 模拟仿真 光纤布里渊散射 

分 类 号：TN29[电子电信—物理电子学]