振动监测在导管架平台结构安全保障方面的几种应用  

Several Applications of Vibration Monitoring in Structural Safety Assurance of Jacket Platform

作　　者：王火平 王德洋 彭怡锦 王巍巍[3] WANG Huoping;WANG Deyang;PENG YiJin;WANG Weiwei(Shenzhen Branch of CNOOC(China)Co.,Ltd,Shenzhen,Guangdong 518000,China;CNOOC Deep Sea Development Co.,Ltd,Shenzhen,Guangdong 518000,China;Offshore Oil Engineering Co.,Ltd,Tianjin 300450,China;Tsinghua Shenzhen International Graduate School,Shenzhen,Guangdong 518000,China)

机构地区：[1]中海石油(中国)有限公司深圳分公司,广东深圳518000 [2]中海石油深海开发有限公司,广东深圳518000 [3]海洋石油工程股份有限公司,天津300451 [4]清华大学深圳国际研究生院,广东深圳518000

出　　处：《海洋工程装备与技术》2023年第4期78-83,共6页Ocean Engineering Equipment and Technology

摘　　要：我国海域现有大量的平台进入设计年限的中后期,对这些老龄平台的管理特别是结构安全保障成为当前作业者关心的重点。通过振动监测手段进行导管架平台结构的安全保障是一种新型的手段,通过基频变化和位移变化进行预警。基频变化采用短时傅里叶变换和小波谱分析方法实现,另外,提出了通过振动测量来进行评估模型修正进而进行后评估的方法。A large number of platforms in my country's waters have entered the middle and late stages.The management of these aging platforms,especially structural safety,has become the focus of the current operator's relationship.Vibration monitoring is used.The safety assurance of the jacket platform structure is a new type of means,which provides early warning through fundamental frequency changes and displacement changes.The fundamental frequency change is realized by short-time Fourier transform and wavelet spectrum analysis methods.In addition,a method of correcting the evaluation model through vibration measurement and then performing post-evaluation is proposed.

关 键 词：振动监测 短时傅里叶变换 小波谱分析 后评估 

分 类 号：TE95[石油与天然气工程—石油机械设备]