Three-Dimensional Ultrasonic Reverse-Time Migration Imaging of Submarine Pipeline Nondestructive Testing in Cylindrical Coordinates [PDF]
Journal of Marine Science and Engineering, 2023 Submarine pipelines are a safe and energy-efficient mode of gas transport. However, due to the complex manufacturing process and harsh operating environment, submarine pipelines are subject to fatigue cracks under long-term cyclic loading.
Daicheng Peng +5 more
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Experimental Investigation of Pore Pressure on Sandy Seabed around Submarine Pipeline under Irregular Wave Loading. [PDF]
Sensors (Basel)The propagation of shallow-water waves may cause liquefaction of the seabed, thereby reducing its support capacity for pipelines and potentially leading to pipeline settlement or deformation.
Fu C, Wang J, Zhao T.
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An Analytical Expression for the Fundamental Frequency of a Long Free-Spanning Submarine Pipeline [PDF]
Mathematics, 2023 The DNVGL-RP-F105 guidelines provide essential techniques for the preliminary design of undersea pipelines. However, its approximations for static displacement and the natural frequency of the pipe are restricted to cases where the ratio of the pipe’s ...
Ty Phuor +2 more
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Numerical Simulation on the Local Scour Processing and Influencing Factors of Submarine Pipeline
Journal of Marine Science and Engineering, 2023 To investigate the different influencing characteristics of local scour around submarine pipelines, hydrodynamic and sediment transport two-dimensional models based on Flow-3D are used to numerically simulate the local scour around the pipeline under ...
Ke Hu, Xinglan Bai, Murilo A. Vaz
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Study on Dynamic Response Measurement of the Submarine Pipeline by Full-Term FBG Sensors [PDF]
The Scientific World Journal, 2014 The field of structural health monitoring is concerned with accurately and reliably assessing the integrity of a given structure to reduce ownership costs, increase operational lifetime, and improve safety.
Jinghai Zhou, Li Sun, Hongnan Li
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Multi-Module Fusion Model for Submarine Pipeline Identification Based on YOLOv5
Journal of Marine Science and EngineeringIn recent years, the surge in marine activities has increased the frequency of submarine pipeline failures. Detecting and identifying the buried conditions of submarine pipelines has become critical.
Bochen Duan +3 more
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Study on the fountain effect of the bubble plume formed by submarine gas pipeline leakage [PDF]
Frontiers in Marine ScienceThe leakage from submarine gas pipelines presents a significant threat to marine ecological environments. Bubble plumes can be formed when gas escapes, which can give rise to the distinctive fountain phenomenon by interacting with the water surface.
Hao Wang +8 more
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Damage predictive model of submarine pipeline impacted by falling object based on BP neural network [PDF]
Journal of Hebei University of Science and Technology, 2023 In order to predict the damage of submarine pipeline on saturated clay seabed by falling objects, a dynamic finite element model of interaction between saturated clay seabed and submarine pipeline under the impact of falling objects was established.
Chunhui ZHANG +7 more
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S-Shaped Laying Technology for Deepwater Submarine Pipelines in the South China Sea
Shiyou jixieThe deepwater environment is complicated and changeable,and internal wave current frequently occurs in the South China Sea,so the laying of submarine pipelines is extremely challenging in the deep waters of the South China Sea.Taking the deepwater ...
Hu Kai +5 more
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Cathodic Protection of Submarine Pipelines
CORROSION ENGINEERING DIGEST, 1958 Susumu Suzuki, Katsutomo Ohya
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