摘要
石油天然气管道在遭受钻孔或地下施工意外破坏的过程中 ,会产生强烈振动并沿着管壁向上、下游传播。本文实验了一种在线监测管道破坏状况的方案 ,利用多组传感器测取振动信号 ,通过时 /频域小波分析 ,实现了消噪、特征提取。
While the oil and gas pipelines are drilled viciously or damaged by underground construction inadver- tently,intensive vibrations would exist on the wall of pipeline and be propagated to extended distance.An on- line supervision arrangement is presented in the paper,in which multi- sensors are equipped.Cancelling noises, extracting features,identifying and positioning the source of vibrations are discussed via the wavelet analyses.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2001年第z2期374-375,377,共3页
Chinese Journal of Scientific Instrument
基金
石油大学基础研究基金 (ZX991 4 )
博士科研基金资助
关键词
石油天然气
管道
故障诊断
振动
小波分析
Oil and gas Pipeline Breakage diagnose Vibration Wavelet analysis
