用于探测管道孔洞的远程导波

IF 3 Q2 ENGINEERING, CIVIL

Journal of Structural Integrity and Maintenance Pub Date : 2020-04-02 DOI:10.1080/24705314.2020.1729517

Salisu El-Hussein, J. Harrigan, A. Starkey

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引用次数: 0

摘要

摘要研究了低频（小于10kHz）导波在结构健康监测中的应用，以防止第三方入侵长管道。沿着管道发送导波（GW），其反射用于检测连接到管道的钻孔或分支的存在。对外径305mm（12英寸）、壁厚12mm的低碳钢管进行有限元分析。说明了管道直径和厚度对GW传播特性的影响。结果表明，低频的使用具有较低的衰减，因此适用于长距离传播。研究表明，GWs有潜力探测超过100米的管道孔洞

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Long range guided waves for detecting holes in pipelines

ABSTRACT The use of low frequency (less than 10 kHz) guided waves for structural health monitoring (SHM) against third party intrusion into long pipelines is investigated. A guided wave (GW) is sent along a pipeline and its reflection is used to detect the presence of a drilled hole or a branch connected to the pipeline. Finite element (FE) analysis was conducted on 305 mm (12 inch) outside diameter, 12 mm wall thickness mild steel pipe. The effects of pipe diameter and thickness on the GW propagation characteristics are illustrated. It is shown that the use of low frequencies have a lower attenuation and therefore are suitable for long range propagation. It is shown that GWs have the potential to detect holes over 100s of meters of pipeline

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来源期刊

Journal of Structural Integrity and Maintenance ENGINEERING, CIVIL-

CiteScore

3.90

自引率

9.50%

发文量