利用远程声发射监测识别水下系泊链节的腐蚀疲劳损伤

IF 4 2区工程技术 Q1 ENGINEERING, CIVIL

Marine Structures Pub Date : 2024-08-31 DOI:10.1016/j.marstruc.2024.103685

Filippo Riccioli , Øystein Gabrielsen , Ingrid Skutle Høgsæt , Pedro Silva Barros , Lotfollah Pahlavan

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引用次数: 0

摘要

本文研究了在水下条件下利用远程声发射（AE）技术检测、定位和监测系泊链节腐蚀疲劳损伤的可行性。对一条在海上运行了约二十年的无螺柱 R4 锚链进行了大规模实验。使用固定和可移动的声发射传感器阵列连续测量超声波信号，这些传感器阵列放置在环绕链条的水槽中的垂直平面上。对从测量信号中提取的 AE 参数进行了分析。在链节的三维几何图形上成功定位了 AE 源。结果表明，使用非接触式水下 AE 传感器可以检测和定位损坏的增长。

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Corrosion-fatigue damage identification in submerged mooring chain links using remote acoustic emission monitoring

This paper investigates the feasibility of detection, localisation, and monitoring of corrosion-fatigue damage in mooring chain links using remote Acoustic Emission (AE) technique in submerged conditions. A large-scale experiment was conducted on a studless R4 chain retrieved after about two decades of operation offshore. Ultrasound signals were continuously measured using fixed and movable arrays of AE transducers placed on perpendicular planes in the water tank enclosing the chain. The AE parameters extracted from the measured signals have been analysed. AE sources were successfully localised on the 3D geometry of the chain links. The results suggest that damage growth can be detected and localised using non-contact underwater AE transducers.

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来源期刊

Marine Structures 工程技术-工程：海洋

CiteScore

8.70

自引率

7.70%

发文量

157

审稿时长

6.4 months

期刊介绍： This journal aims to provide a medium for presentation and discussion of the latest developments in research, design, fabrication and in-service experience relating to marine structures, i.e., all structures of steel, concrete, light alloy or composite construction having an interface with the sea, including ships, fixed and mobile offshore platforms, submarine and submersibles, pipelines, subsea systems for shallow and deep ocean operations and coastal structures such as piers.