Monitoring of Fracture of Welded Joints in Hazardous Facilities by Acoustic Emission under Static and Cyclic Loadings

Растегаев, И. А.; Linderov, Mikhail; Мерсон, Д. Л.; Afanasyev, M. A.; Danyuk, A. V.

doi:10.17485/ijst/2015/v8i36/90555

Cited by 2 publications

(1 citation statement)

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“…AE testing provides low noise immunity, therefore, such experiments are traditionally carried out for equipment when the operation of equipment is suspended. Recently, the technology of AE monitoring which requires the use of specific methods for detecting AE signals against a noise background has become more popular [3][4][5]. AE monitoring is performed for both statically and dynamically loaded equipment.…”

Section: Introductionmentioning

confidence: 99%

Structural Health Monitoring of Walking Dragline Excavator Using Acoustic Emission

Barat

Marchenkov

Kritskiy³

et al. 2021

Applied Sciences

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The article is devoted to the organization of the structural health monitoring of a walking dragline excavator using the acoustic emission (AE) method. Since the dragline excavator under study is a large and noisy industrial facility, preliminary prospecting researches were carried out to conduct effective control by the AE method, including the study of AE sources, AE waveguide, and noise parameters analysis. In addition, AE filtering methods were improved. It is shown that application of the developed filtering algorithms allows to detect AE impulses from cracks and defects against a background noise exceeding the useful signal in amplitude and intensity. Using the proposed solutions in the monitoring of a real dragline excavator during its operation made it possible to identify a crack in one of its elements (weld joint in a dragline back leg).

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Section: Introductionmentioning

confidence: 99%