Investigation on responses and capacity of offshore pipelines subjected to submarine landslides

Application of EfficientNet and YOLOv5 Model in Submarine Pipeline Inspection and a New Decision-Making System

“…Accuracy, precision, recall and F1 score are effective parameters to evaluate the performance of neural network models [36]. In this study, they were used as classification evaluation indexes for measuring the performance of subsea pipeline image classification by EfficientNet, as shown in Equations ( 5)- (8). Accuracy referred to the proportion of correctly classified samples to the total number of samples and was also called precision.…”

“…Guarding seawater resources is of great significance to human safety and health. Submarine pipelines are one of the most important ways to transport marine oil and gas [8], and their safety is of great concern. Submarine pipelines are mostly located in seabed environments which are complex and changeable geomorphologies.…”

An Analytical Method for Mechanical Analysis of Offshore Pipelines during Lifting Operation

“…Many researchers and engineers use numerical calculation tools such as Orcaflex v11.0 [8][9][10][11][12], ABAQUS v2020 [13][14][15][16], and ANSYS v10.0 [17,18] to conduct research on offshore pipelines. Wang et al [12] simulated different stages of a drilling pipe and subsea manifold in Orcaflex, investigating the effects of current velocity, wave height, and bundle weight on tension, bending moment, stress, and displacement of the pipe.…”

طول فعال خطوط لوله ی انتقال گاز در برابر زمین‌ لغزش

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