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Keywords: accuracy
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Proceedings Papers
Real-Time Motion Prediction of a 5 MW Floating Offshore Wind Turbine by Recurrent Neural Network
Available to Purchase
Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-049
... effective prediction length can reach up to 12 s. The predictive accuracy is also compared under different sea states with a sea state level of 4 to 6 and randomness of irregular waves. Though the prediction error increases with a higher sea state, the predicted motion results are still maintain good...
Proceedings Papers
Correlation of Stress Intensity Factors in Welded Joints of Steel Jacket Structures
Available to Purchase
Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-466
... regression ml model accuracy fidelity model polynomial regression crack front hyperparameter Proceedings of the Thirty-fifth (2025) International Ocean and Polar Engineering Conference Seoul/Goyang, Korea, June 1-6, 2025 Copyright © 2025 by the International Society of Offshore and Polar Engineers...
Proceedings Papers
Deep Learning-Based Identification of Crack Types in Corroded Concrete Beams
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-479
... differentiation between tensile and shear cracks according to their angles. The research results indicate that the model achieved a mean pixel accuracy (mPA) of 94.67% and mean intersection over union (mIoU) of 85.36% on the dataset, indicating an accurate crack segmentation effect. During the reinforcement...
Proceedings Papers
Intelligent Optimization Design Method for Enhancing Submersible Pump Efficiency Based on Deep Learning
Available to PurchaseShenghui Dai, Hong Zhu, Yu Song, Jiahao Li, Shibo Zhan, Meijun Dong, Yuanfei Zhang, Xiaohe Zhang, Keyi Xu
Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-515
... submersible pump artificial lift system impeller algorithm pump efficiency optimization design optimization problem sustainable development optimization centrifugal pump impeller inducer nsga simulation accuracy inlet angle outlet angle impeller and inducer Proceedings of the Thirty-fifth...
Proceedings Papers
Study on Impact Damage Prediction of Subsea Pipeline Caused by Drop Anchor Based on FEM-ANN
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-534
... ABSTRACT The current research on subsea pipeline damage predominantly utilize theoretical formulations and numerical simulations. While theoretical calculations offer rapid results, they often lack precision; conversely, numerical simulations provide greater accuracy but require more time...
Proceedings Papers
Adaptive Machine Learning-Based Optimization for LoRaWAN Communication in Maritime Man-Overboard Monitoring
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-545
... accuracy Proceedings of the Thirty-fifth (2025) International Ocean and Polar Engineering Conference Seoul/Goyang, Korea, June 1-6, 2025 Copyright © 2025 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-74-6; ISSN 1098-6189 www.isope.org Adaptive Machine Learning...
Proceedings Papers
Research on Identification of Overboard Personnel Based on Attitude Information
Available to Purchase
Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-547
... be used for coordinate changes to improve data accuracy and precision. Finally, different methods are used to analyze the changes in the attitude information of the drowning personnel. The body of the paper begins with the Introduction. In the Introduction, state the purpose of the paper, or the author's...
Proceedings Papers
Validation of Rankine Panel Method for Estimation of Ship's Seakeeping Performance in Oblique Waves
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-589
... for practical purposes, it is necessary to validate the estimation accuracy not only for heading waves but also for following and oblique waves. In this paper, we validate the accuracy of Rankine Panel Method, one of the numerical calculation methods, in various wave directions by comparing the calculation...
Proceedings Papers
Prediction of Flow Fields in Sloshing Tank Using Image-Based Deep Learning
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-603
... was performed (Ahn et al., 2019). neural network deep learning artificial intelligence machine learning velocity field algorithm flow field liquified natural gas (lng) prediction tank amplitude net algorithm kim excitation period accuracy single impact wave piv image free surface...
Proceedings Papers
An Improved Tide Level Prediction Model Combined VMD-CNN-BiLSTM and Attention Mechanism
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-618
... that the VMD-CNN-BiLSTM-AM prediction model can more effectively characterize the spatiotemporal characteristics of the tidal information, and the prediction accuracy has also been improved. INTRODUCTION Tide is an essential phenomenon in ocean dynamics, a periodic sea-level change caused by celestial...
Proceedings Papers
Development and Validation of an Image-Based Instrumentation System for Ship Block Manufacturing
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-619
..., and mechanical loads exerted during transportation. Deformation of blocks due to various factors significantly degrades the quality of hull construction, necessitating corrective measures to restore dimensional accuracy. Furthermore, block deformation is critical as dimensional discrepancies during the assembly...
Proceedings Papers
An Initial Study on Propeller Condition Monitoring Using Seismic Data and ML
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-626
... Connected Neural Network model, all geometry variations could be distinguished with mixed performances. The achieved overall prediction accuracy is above 90 % for bollard pull cases. However, the prediction performance drops for data derived from the 4-blade propeller. For cases with moving propellers...
Proceedings Papers
Research on Turbulence Model Parameters in Simulation of Water Jet Propulsion SRU
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-639
... ABSTRACT Designing and optimizing the hydrodynamic performance of the steering and reversing unit(SRU) can help improve the maneuverability of waterjet propulsion ships. In order to improve the prediction accuracy of the lateral force of the waterjet propulsion SRU, based on the Reynolds...
Proceedings Papers
On the Wind Turbine Clearance Forecasting Surrogate Model
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-081
... Learning Toolbox for neural network training, the model is based on over 37 million data points. A Multi-Layer Perceptron (MLP) model, tailored for high and low wind-speed regimes, demonstrates robust performance with a prediction error of approximately 5%. This approach enhances prediction accuracy...
Proceedings Papers
Research on Structural Safety Monitoring and Motion Response Prediction of Floating Offshore Wind Turbines
Available to Purchase
Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-086
... and can effectively analyze the operational status of structures. Gao, et al. (2024) proposed a floating platform attitude correction method based on Kalman filter method with multi-antenna GNSS and acceleration sensor fusion, which improved the motion monitoring accuracy of marine floating structures...
Proceedings Papers
Optimization and Analysis of the Dimensions of an Oscillating Water Column Wave Energy Converter
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-091
..., capture complex nonlinearities (Zhao and Ning, 2024), offering improved accuracy over earlier models. These CFD approaches have been used to investigate how structural parameters and wave conditions influence OWC power generation, providing valuable insights for performance optimization. López et al...
Proceedings Papers
Bridging Data Gaps with Machine Learning for Reliable Monitoring of a Floating Solar Array Under Extreme Marine Environments
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-128
..., Artificial Neural Networks, Extreme Gradient Boosting, and Decision Trees, were implemented to predict and reconstruct missing sensor data collected during these tests. Among these, LSTM networks showed the highest predictive accuracy, achieving a Root Mean Squared Error (RMSE) of 0.001. These results...
Proceedings Papers
Microleakage Localization Method Based on Arrival Time Difference for Manifold
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-204
... the leakage identification. A localization method based on dynamic time warp matrix is established to obtain the time difference, and the dynamic pressure wave propagation velocity in the manifold is combined to calculate the microleakage localization. The effectiveness and accuracy of the method are verified...
Proceedings Papers
Performance of Data-Driven Approaches in Predicting Ship Carbon Intensity Indicator
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-207
... firstly investigated, encompassing three categories, i.e., statics, machine learning and deep learning. Prediction accuracy was compared based on metrics such as R 2 and MAPE. Computational efficiency was compared based on FLOPs. The research revealed that seven of the fifteen approaches achieved...
Proceedings Papers
Stress Monitoring of Underwater Lines Using Optimally Placed Inclinometers
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Paper presented at the The 35th International Ocean and Polar Engineering Conference, June 1–6, 2025
Paper Number: ISOPE-I-25-211
...). A submerged inclined tunnel was considered for validation, and the method was validated using synthetic data generated from time-domain simulations. Results confirm that the proposed approach accurately estimates stress, with optimization significantly improving accuracy, particularly at both ends...
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