A New Method of Defects Identification for Wire Rope Based on Three-Dimensional Magnetic Flux Leakage

Zhang, D L; Cao, Yiming; Wang, C; Xu, D G

doi:10.1088/1742-6596/48/1/062

Cited by 19 publications

(7 citation statements)

References 2 publications

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“…This method measured leakage magnetic field around the wire rope with the integrated Hall sensors. Through MTC-94 type of wire rope flaw detector and GDJY series of quantitative broken detector of wire rope, it achieves the quantitative detection of broken wire rope [5]. Tao Dexin of Wuhan University of Science and Technology uses the testing method of magnetic flux leakage by four Hall sensors to get the magnetic flux leakage signals and detect the wire rope damage qualitatively.…”

Section: Detection Methods Based On Hall Sensormentioning

confidence: 99%

Literature Review of Research on the Technology of Wire Rope Nondestructive Inspection in China and Abroad

Jing

Zhou

Wang

et al. 2015

MATEC Web of Conferences

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Section: Detection Methods Based On Hall Sensormentioning

confidence: 99%

Literature Review of Research on the Technology of Wire Rope Nondestructive Inspection in China and Abroad

Jing

Zhou

Wang

et al. 2015

MATEC Web of Conferences

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“…Relevant scholars have, respectively, measured and analyzed the overall geometric initial defects of I-shaped section members with nominal yield strengths of 460 MPa and 960 MPa [20]. e results show that the measured amplitude of the overall geometric initial defects of most high-strength steels is less than 1/1000.…”

Section: Related Workmentioning

confidence: 99%

Nonlinear Analysis Method of High-Strength Steel Based on Local Buckling Fiber Hinge

Wang

Zheng

2021

Mathematical Problems in Engineering

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Based on the analysis and summary of the research and application status of domestic and foreign high-strength steel local buckling fiber hinged rod stability and ordinary steel local buckling fiber hinged rod stability control, this paper proposes a fiber hinged rod suitable for spatial structures subject to local buckling. The new type is high-strength steel composite local buckling fiber hinged pressure rod. The influence of related parameters in the dislocation string model and the dislocation couple model on the ultrasonic nonlinear parameters is deeply analyzed. And, from the perspective of contact nonlinear acoustics, the mechanism of the ultrasonic nonlinear response of the crack is analyzed, and the finite element software ABAQUS is used to simulate it. The relationship between the nonlinear parameter and the internal crack shape of the material is simulated and analyzed, which proves the nonlinearity. A series of nonlinear ultrasonic testing was performed on three groups of FV520B high-strength steel fatigue specimens using a nonlinear testing system. Analyzing the results, it is found that the material has a good ultrasonic nonlinear cumulative effect, and the microcracks have a greater impact on the ultrasonic nonlinear response. The β-N curves under three sets of fatigue tests are obtained. The results show that the nonlinear parameters are very sensitive to the fatigue damage of FV520B high-strength steel, and the ultrasonic nonlinear parameters generally increase with the increase in the number of fatigue cycles.

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“…There exists a lot of work in the field of automatic rope inspection by magnetic measurement techniques Zhang et al (2006) but only few previous work coping with automatic approaches for visual rope inspection. Platzer et al (2010) compared the performance of different textural features for the problem of defect detection in wire rope surfaces.…”

Section: Rope Inspectionmentioning

confidence: 99%

Enhanced anomaly detection in wire ropes by combining structure and appearance

Wacker

Denzler

2013

Pattern Recognition Letters

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Automatic visual surface inspection is a challenging task, which has become important for quality assurance in the last years. Wire rope inspection is a special problem within this field. Usually, the huge and heavy ropes cannot be detached. Thus, an inspection of the ropes must be conducted, while the ropes are in use. The rope surface exhibits various appearance characteristics so that the existing, purely appearance-based approaches tend to fail.We explicitly integrate information about the object geometry, which we obtain by aligning a sequence of 2d rope images with a perfectly regular 3d model of the rope. The rendering equation is used to link object geometry to the observed rope appearance. Based on the connection between geometry and surface appearance we build a probabilistic appearance model which serves as representation for normal surface variations. A robust localization of rope surface defects is achieved by means of anomaly detection. The presented approach has no need for knowledge about the illumination setting or the reflectance properties of the material.An evaluation on real-world data from ropeways leads to an accuracy comparable to that of a human expert. With an accuracy of 95% and a false-alarm-rate of 1.5% the approach outperforms all other existing approaches.

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A New Method of Defects Identification for Wire Rope Based on Three-Dimensional Magnetic Flux Leakage

Cited by 19 publications

References 2 publications

Literature Review of Research on the Technology of Wire Rope Nondestructive Inspection in China and Abroad

Literature Review of Research on the Technology of Wire Rope Nondestructive Inspection in China and Abroad

Nonlinear Analysis Method of High-Strength Steel Based on Local Buckling Fiber Hinge

Enhanced anomaly detection in wire ropes by combining structure and appearance

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