Quantification and localization of internal pipe damage

被引：15

作者：

Vogelaar, Bouko ^{[1
]}

Golombok, Michael ^{[2
]}

机构：

[1] Eindhoven Univ Technol, Dept Mech Engn, Groene Loper 15, NL-5600 MB Eindhoven, Netherlands

[2] Shell Global Solut Int BV, Kessler Pk 1, NL-2288 GS Rijswijk, Netherlands

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2016年 / 78卷

关键词：

Structural health monitoring; Guided waves; Piezoelectric transducers; Pipe damage; Time-frequency analysis; FUNDAMENTAL TORSIONAL MODE; LAMB WAVES; GUIDED-WAVE; CHIRP EXCITATION; DEFECT DETECTION; BASE-LINE; IDENTIFICATION; PROPAGATION; SCATTERING; ARRAY;

D O I：

10.1016/j.ymssp.2015.10.011

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Internal pipeline defects are detectable and locatable from guided acoustic wave reflections using sensors mounted on the outer wall of a pipe. We demonstrate pipeline integrity monitoring with only two single acoustic sensors. Multi-mode dispersion imaging of shear displacement shows that the pure torsional mode is the only wave that survives axisymmetric pipe reflection. A reduction of 20% of the reference reflection is measured for a damage of half the wall thickness. This natural filtering is used to quantify and locate internal pipe damage. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：107 / 117

页数：11

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