Results 21 to 30 of about 52,212 (299)

An auxiliary device for internal pipeline stress detection based on Barkhausen effect

You-qi chuyun, 2020
For the requirements of integrated internal detection of the pipeline stress concentration and metal damage, the internal stress detection technology based on continuous Barkhausen effect was studied, and an auxiliary device for internal stress detection
Jinzhong CHEN, Yilai MA, Yang JIN
doaj   +1 more source

CNN-based defect diagnosis method for rotating blades

You-qi chuyun, 2020
In order to solve the problem of difficult blade defect diagnosis caused by severe signal under-sampling in tiptiming technology, a defect diagnosis method for rotating blade based on convolution neural network (CNN) was proposed.In the method, the under-
Jiwang ZHANG, Xueli WANG, Haibo XIE, Keqin DING   +3 more
doaj   +1 more source

Flexible surface inspection planning pipeline

, 2022
S.644-652Efficiency of a visual inspection system is greatly influenced by the hardware configuration in terms of both arrangement and sensing parameters. Currently, the configuration is still determined manually.
Rauhut, M., Gospodnetic, P., Mosbach, D., Hagen, H.   +3 more
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Development of immersion ultrasonic defect detection system

You-qi chuyun, 2020
According to the requirements for corrosion detection of tank bottom plate, the identification principle of corrosion defect and the countermeasures to different influencing factors were analyzed based on the principle of ultrasonic pulse reflection ...
Yewei KANG, Bin LI, Zhenghong GUO, Yi ZHANG, Huatian XU, Qiuping LI, Xianjun TAN   +6 more
doaj   +1 more source

Development and application of subsea pipeline detection system based on the Unmanned Surface Vessel

You-qi chuyun, 2021
In order to ensure the safe operation of subsea pipelines, it is necessary to perform inspection periodically. However, there are many constraints in the traditional detection methods, which limit the frequency and efficiency of subsea pipeline ...
Wenchuan FENG, Zhuo ZHAO
doaj   +1 more source

A Decade Review of the Art of Inspection and Monitoring Technologies for Long-Distance Oil and Gas Pipelines in Permafrost Areas

Energies, 2023
Long-distance oil and gas pipelines buried in permafrost areas will inevitably encounter typical geological disasters, such as frost heave and thaw settlement and sliding, which easily cause pipeline displacement, bending, or deformation.
Pengchao Chen, Rui Li, Guangming Jia, Hao Lan, Kuan Fu, Xiaoben Liu   +5 more
doaj   +1 more source

Experimental investigation and identification of single and multiple cracks in synthetic fiber concrete beams

Case Studies in Construction Materials, 2018
The tensile behavior of fiber-reinforced concrete is recognized as being superior to that of ordinary concrete, and since serviceability is a primary concern in existing design specifications, it is important to evaluate its post-cracking performance ...
Masoud Ghahremannejad, Maziar Mahdavi, Arash Emami Saleh, Sina Abhaee, Ali Abolmaali   +4 more
doaj   +1 more source

Modeling and simulation on speed prediction of bypass pipeline inspection gauge in medium of water and crude oil

Measurement + Control, 2020
Bypass pipeline inspection gauges have the advantages of low cost and bringing no consumption in transportation efficiency and have been widely used in pipe cleaning, inspecting, and maintaining operations.
Zengmeng Zhang, Yong Yang, Jiaoyi Hou, Yongjun Gong   +3 more
doaj   +1 more source

Coordinated Formation Control of Multiple Autonomous Underwater Vehicles for Pipeline Inspection

, 2010
This paper addresses the control problem of inspecting underwater pipeline on the seabed, with coordinated multiple autonomous underwater vehicles in a formation. Based on the leader-follower strategy, the dedicated nonlinear path following controller is
Xianbo Xiang, Jouvencel, Bruno, Bruno Jouvencel, Xiang, Xianbo, Parodi, Olivier, Olivier Parodi   +5 more
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Correção de erros de medição da geometria interna de tubos provocados pelas rodas de um perfilômetro óptico [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2014.O conhecimento da integridade dos dutos na indústria de petróleo e gás é indispensável ...
Victorette, Milena Won Dias
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