Structural Health Monitoring of Industrial Piping Systems Using Guided Elastic Waves

被引：0

作者：

Schubert, F. ^{[1
]}

Frankenstein, B. ^{[1
]}

Hentschel, D. ^{[1
]}

Froehlich, K. -J. ^{[1
]}

Kuettner, M. ^{[1
]}

Lamek, B. ^{[1
]}

Schwenkkros, J. ^{[2
]}

Kerkhof, K. ^{[3
]}

Petricevic, R. ^{[4
]}

机构：

[1] Fraunhofer Inst Nondestruct Testing IZFP, Dresden Branch, Dresden, Germany

[2] DOW Stade, Stade, Germany

[3] MPA Univ Stuttgart, Stuttgart, Germany

[4] Neue Mat Wurzburg GmbH, Wurzburg, Germany

来源：

EUROPEAN NDT DAYS IN PRAGUE 2007: NDT IN PROGRESS, PROCEEDINGS | 2007年

关键词：

Guided elastic waves; Structural health monitoring (SHM); Piping systems;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Guided elastic waves in the frequency range of a few hundred kHz, generated and detected by appropriate transducer arrays, are used to monitor the structural integrity of pipes by comparing their actual state with a predefined reference state. For these purposes, theoretical, numerical, and experimental results are combined to study guided wave propagation and wave interaction with relevant defects in detail. Based on these findings, a guided wave based multi-channel structural health monitoring (SHM) system is designed and applied to identify and monitor structural defects in various piping components. The potential use of synthetic aperture techniques is discussed yielding spatial distributions of damage parameters along the pipe. The results reveal that guided wave based SHM in the kHz frequency regime has great potential for online monitoring of piping systems. It combines imaging techniques with long range detection capabilities and therefore closes the gap between local high-frequency NDE on the one hand and global low-frequency vibration analysis on the other hand.

引用

页码：161 / +

页数：2

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