Ocean Engineering最新文献_第10页

Non-parametric identification modeling and prediction of intelligent ship maneuvering motion based on real ship test at sea

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-04-18 DOI: 10.1016/j.oceaneng.2025.121267

Shihao Li, Xiao Yang, Hongxiang Ren, Chang Li, Xiaoyu Feng

{"title":"Non-parametric identification modeling and prediction of intelligent ship maneuvering motion based on real ship test at sea","authors":"Shihao Li, Xiao Yang, Hongxiang Ren, Chang Li, Xiaoyu Feng","doi":"10.1016/j.oceaneng.2025.121267","DOIUrl":"10.1016/j.oceaneng.2025.121267","url":null,"abstract":"<div><div>The rapid development of intelligent ships has put forward higher requirements for the accuracy and practicability of ship maneuvering motion modeling and prediction. This paper takes the first intelligent research and training dual-purpose ship “Xin Hong Zhuan” of Dalian Maritime University as the research object. A multi-output support vector regression black box modeling method based on Bayesian Optimization(BO) and mixed kernel function is proposed for ship maneuvering motion prediction. This method uses a mixed kernel function multi-output support vector regression (MK-MO-<span><math><mi>ν</mi></math></span>-SVR) model combining radial basis function and polynomial kernel function, and uses Bayesian Optimization algorithm to optimize the model hyperparameters. Taking the real ship test data of the intelligent ship “Xin Hong Zhuan” as the dataset, the superior performance of the proposed model in the short-term and long-term prediction of ship zigzag maneuver and turning circle maneuver is verified by comparing different kernel function combinations. The results show that the MK-MO-<span><math><mi>ν</mi></math></span>-SVR model proposed in this paper performs well in prediction accuracy and generalization ability, and can effectively predict ship maneuvering motion, which provides a powerful technical means for navigation safety and decision support of intelligent ships.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"330 ","pages":"Article 121267"},"PeriodicalIF":4.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of route planning based on active towed array sonar for underwater search and rescue

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-04-17 DOI: 10.1016/j.oceaneng.2025.121249

Siyuan Liao, Wenbin Xiao, Yongxian Wang

{"title":"Optimization of route planning based on active towed array sonar for underwater search and rescue","authors":"Siyuan Liao, Wenbin Xiao, Yongxian Wang","doi":"10.1016/j.oceaneng.2025.121249","DOIUrl":"10.1016/j.oceaneng.2025.121249","url":null,"abstract":"<div><div>In order to meet the underwater search requirements in deep sea, an route planning method based on active towed array sonar (ATAS) for underwater search and rescue is proposed in this paper. Firstly, the 3D ocean acoustic environment is modeled based on the hydrographic data and the global bathymetry data. Secondly, the detection distances of ATAS in the mission area are accurately evaluated based on the sonar equation. In particular, we introduce hybrid parallel computing, which accelerates the transmission loss computation by a factor of 202.69. Thirdly, to overcome the sampling sparsity of environmental parameters, an improved inverse distance weight interpolation method based on the ordinary least squares theory is proposed, which makes the correlation coefficient between the predicted value and the real reaches 0.945. Finally, an USAR route planning model based on the Lawnmower search method is established, and the generalized normal distribution optimization (GNDO) algorithm is introduced. In the test of the Atlantic Ocean (29,818 <span><math><msup><mrow><mi>km</mi></mrow><mn>2</mn></msup></math></span>), the uncovered rate can be reduced from 34.39 % to 10.13 % (single-vessel search) and from 14.68 % to 0.07 % (two-vessels search) by GNDO in sub-second, whose performance is better than five popular heuristic algorithms.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"330 ","pages":"Article 121249"},"PeriodicalIF":4.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Autonomous collision avoidance decision-making method with human-like attention distribution for MASSs based on GMA-TD3 algorithm

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-04-17 DOI: 10.1016/j.oceaneng.2025.121118

Wuyue Rong , Jian Zheng , Yang Chen , Yang Liu , Zekun Zhang

{"title":"Autonomous collision avoidance decision-making method with human-like attention distribution for MASSs based on GMA-TD3 algorithm","authors":"Wuyue Rong , Jian Zheng , Yang Chen , Yang Liu , Zekun Zhang","doi":"10.1016/j.oceaneng.2025.121118","DOIUrl":"10.1016/j.oceaneng.2025.121118","url":null,"abstract":"<div><div>Ensuring the high-quality operation of an autonomous collision avoidance decision-making (CADM) system for Maritime Autonomous Surface Ships (MASSs) is essential for optimizing navigation safety. However, a gap remains in addressing the sequential collision avoidance problem in multi-ship encounter scenarios, which continues to present challenges for operations. To tackle the challenge, this paper proposes an autonomous CADM method based on Gated Recurrent Unit-enhanced Multi-head Attention Twin Delayed Deep Deterministic Policy Gradient (GMA-TD3) algorithm. The CADM framework consists of two main modules, a collision risk assessment module, powered by the Gated Recurrent Unit-enhanced Multi-head attention mechanism (GMA) mechanism to obtain the priority determination of obstacles based on the identified collision risk, and a motion decision module, driven by the GMA-TD3 algorithm to generate sequential collision avoidance decision with human-like attention distribution. Besides, a dual-level reward mechanism was incorporated to balance long-term goal orientation and immediate dynamic behavior. Comparative experiments show that the GMA-TD3 algorithm achieves the fastest convergence for the targeted problem and generates the shortest and smoothest trajectories. Simulation results further confirm that the proposed system accurately identifies the highest-risk obstacles before making decisions, ensuring timely and precise collision avoidance within a safe distance while fully adhering to COLREGs.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"330 ","pages":"Article 121118"},"PeriodicalIF":4.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling fluid forces in 2-DOF forced motion experiments using neural network and analytical nonlinear approaches

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-04-17 DOI: 10.1016/j.oceaneng.2025.121231

Erdem Aktosun

引用次数: 0

Study on the stability of bucket foundation revetment under different backfill materials: Based on geotechnical centrifugal model test

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-04-17 DOI: 10.1016/j.oceaneng.2025.121136

Yunfei Guan , Zhuojie Pan , Xun Han

{"title":"Study on the stability of bucket foundation revetment under different backfill materials: Based on geotechnical centrifugal model test","authors":"Yunfei Guan , Zhuojie Pan , Xun Han","doi":"10.1016/j.oceaneng.2025.121136","DOIUrl":"10.1016/j.oceaneng.2025.121136","url":null,"abstract":"<div><div>The bucket foundation structure is a lightweight, thin-walled, multi-compartment structure suitable for muddy sea areas. When used as a revetment, this structure primarily suffers backfill loads and involves complex bucket-soil interaction. This study investigates the stability of bucket foundation revetments under different backfill materials through geotechnical centrifuge model tests. The results indicate that the bucket foundation revetment satisfies the stability requirements under all test conditions. During backfilling inside the bucket, the main structural displacement was settlement, with resistance at the bottom of the bucket and friction on the inner wall being the dominant resistive forces. During backfilling on the landside, the structural displacement was significantly influenced by the vertical load sharing ratio between the bucket and the soil. When backfilled with sludge, the structure predominantly experienced sliding towards the seaside, with the soil on the seaside of the lower bucket providing substantial resistance. When backfilled with standard sand and block stone, the bucket mainly tilted towards the landside, with the soil near the landside at the bottom and within the compartments offering greater resistance. This study also proposes methods for stability assessment and measures to reduce displacement, providing valuable insights for construction and design.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"330 ","pages":"Article 121136"},"PeriodicalIF":4.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vertical structure of internal solitary waves and its force exerted on a horizontal cylinder in the northern South China sea

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-04-17 DOI: 10.1016/j.oceaneng.2025.121211

Pai Peng , Jieshuo Xie , Hui Du , Shaodong Wang , Pu Xuan

{"title":"Vertical structure of internal solitary waves and its force exerted on a horizontal cylinder in the northern South China sea","authors":"Pai Peng , Jieshuo Xie , Hui Du , Shaodong Wang , Pu Xuan","doi":"10.1016/j.oceaneng.2025.121211","DOIUrl":"10.1016/j.oceaneng.2025.121211","url":null,"abstract":"<div><div>To date, although longitudinal evolution and latitudinal structure of internal solitary waves (ISWs) in Northern South China Sea (NSCS) has been sufficiently investigated, vertical structure of ISWs is rarely discussed. Here we analyse the modulation of the nonhydrostatic and nonlinear effects on ISW vertical structure in NSCS quantitatively. The results show that the depth of maximum vertical displacement of ISWs gets shallower by the nonhydrostatic or nonlinear effect, especially in the continental shelf and slope. Further, the observations show that vertical structures of wave amplitude and ISW-induced vertical velocity could be well predicted by the theoretical nonlinear vertical structures, with their maximums locating at a depth of 200–400 m at the continental slope. The nonlinear effect could be twice stronger than the nonhydrostatic effect in modulating the depth of maximum vertical structure. In spite of varying depth of maximum vertical structure of a westward propagating ISW due to bathymetry, downward vertical force exerted on a horizontal transverse cylinder, calculated under the continuously stratified model, reaches its most fixedly at a depth near the pycnocline (∼100 m) instead of the corresponding depth of maximum ISW vertical structure. Because of positive correlation with wave nonlinearity, the estimated vertical force in the continental shelf and slope is roughly 2–3 times larger than that in the deep basin. The vertical force in eKdV theory could be up to 1.5 times larger than that in KdV theory.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"330 ","pages":"Article 121211"},"PeriodicalIF":4.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic resilience modeling of maritime traffic systems: A hybrid HMM-DBN approach for analyzing LNG-Fueled vessel interactions 海上交通系统的动态弹性建模：用于分析液化天然气燃料船舶相互作用的混合 HMM-DBN 方法

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-04-16 DOI: 10.1016/j.oceaneng.2025.121213

Shenping Hu , Chun Zou , Jianjun Wu , Weifeng Zhang , Zhongcheng Wang , Jiangang Fei

{"title":"Dynamic resilience modeling of maritime traffic systems: A hybrid HMM-DBN approach for analyzing LNG-Fueled vessel interactions","authors":"Shenping Hu , Chun Zou , Jianjun Wu , Weifeng Zhang , Zhongcheng Wang , Jiangang Fei","doi":"10.1016/j.oceaneng.2025.121213","DOIUrl":"10.1016/j.oceaneng.2025.121213","url":null,"abstract":"<div><div>The growing adoption of liquefied natural gas-fueled vessels (LNGFVs) in maritime traffic systems has heightened the need for advanced resilience modeling to mitigate operational risks and improve safety. This research introduces a novel hybrid methodology combining Hidden Markov Models (HMM) and Dynamic Bayesian Networks (DBN) to dynamically assess the resilience of LNGFV operations. Initially, a safety-control feedback structure is developed using Causal Analysis System Theory (CAST), revealing critical factors and their interrelationships that influence navigation safety and resilience. Subsequently, an HMM-based quantification model is designed to address latent-node measurement challenges within the DBN framework, enabling precise inference of complex interactions in maritime traffic systems. Real-world data from an LNGFV collision case in Northeast Australia, including ship-sensor and environmental data, are utilized to reconstruct the accident process and analyze the functional interactions between LNG and vessel operations. Simulation results demonstrate that LNGFV traffic resilience evolves through dynamic interactions among the external environment, the vessel, and LNG, exhibiting a fluctuating temporal pattern. Additionally, the proposed Triple Protection Mechanism shows significant potential in enhancing system resilience. This study provides a comprehensive modeling framework and a new perspective for improving the safety and resilience of maritime transportation, particularly for LNGFV operations. The hybrid HMM-DBN approach offers a robust tool for researchers and practitioners to address the challenges of complex maritime systems.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"330 ","pages":"Article 121213"},"PeriodicalIF":4.6,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A practical approach for simplified operational guidance to avoid parametric roll resonance

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-04-16 DOI: 10.1016/j.oceaneng.2025.121215

Pekka Ruponen , Ekin Altintas , Jerzy Matusiak , Tommi Mikkola

{"title":"A practical approach for simplified operational guidance to avoid parametric roll resonance","authors":"Pekka Ruponen , Ekin Altintas , Jerzy Matusiak , Tommi Mikkola","doi":"10.1016/j.oceaneng.2025.121215","DOIUrl":"10.1016/j.oceaneng.2025.121215","url":null,"abstract":"<div><div>Parametric roll resonance is known to have caused several accidents with significant loss of containers over the past decades. International Maritime Organization has introduced interim guidelines for the Second Generation Intact Stability Criteria (SGISC) that consider also parametric roll with a multi-tier approach. In this study, a new practical approach for preparing ship-specific simplified operational guidance for avoiding parametric roll, in the context of the SGISC framework, is described, with focus on large ocean-going ships. The method is based on time-domain solution of non-linear roll equation in regular longitudinal waves, with quasi-static calculation of pitch and heave motions. The concept of longitudinally moving Grim’s effective wave, with an extension to oblique seas, is utilized. The method is validated against model test experiments, and comparative direct stability assessment simulations have also been conducted. A case study with a very large container ship design, replicating the conditions of a well-documented accident, is presented to demonstrate that the parametric rolling in stern quartering seas is properly captured. The results indicate that this kind of ship-specific simplified operational guidance can identify dangerous conditions, and therefore, this approach has potential use in planning operation of ships to reduce the risk of parametric roll resonance.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"330 ","pages":"Article 121215"},"PeriodicalIF":4.6,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A systematic review on mechanism and regulation strategy of marine hydrodynamic noise: Advances, challenges, and perspectives

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-04-16 DOI: 10.1016/j.oceaneng.2025.121202

Xin Jin , Hua-long Huang , Yuan Tao , Fu-gui Zhang , Min Luo , Chang-yuan Fan , Tao Tang

{"title":"A systematic review on mechanism and regulation strategy of marine hydrodynamic noise: Advances, challenges, and perspectives","authors":"Xin Jin , Hua-long Huang , Yuan Tao , Fu-gui Zhang , Min Luo , Chang-yuan Fan , Tao Tang","doi":"10.1016/j.oceaneng.2025.121202","DOIUrl":"10.1016/j.oceaneng.2025.121202","url":null,"abstract":"<div><div>Noise pollution in the oceans has emerged as a significant environmental concern, garnering increasing global attention in recent years. It will harm human health and the survival of species and weaken equipment reliability. With advancements in navigation technology and marine resource exploitation, issues of hydrodynamic noise are expected to rise increasingly, which poses a significant challenge to marine noise management. Therefore, there is a necessity to explore new technologies to improve marine acoustic environments. This review first summarizes and analyzes the existence scenarios and generation mechanisms of hydrodynamic noise near or far off the coast. Then, the mitigation principles and applications of passive noise control (PNC), active noise control (ANC), and active-passive hybrid noise control (HNC) techniques for hydrodynamic noise control (Hydro-NC) are discussed, as well as their recent advancements. An overview of physical materials and particular structures used in PNC is followed, which either modulate the noise intensity/source by altering the flow field or directly absorb the sound at the source/transmission path to reduce the total noise levels at a specified frequency band. In addition, ANC is pioneeringly introduced to regulate hydrodynamic noise in the oceans; its mitigation mechanism, latest progress, and future perspectives for Hydro-NC are explored. To guarantee more critical acoustic requirements, it further discusses the coupling strategies of PNC and ANC and proposes some novel conceptual HNC, as well as their potential on Hydro-NC. Finally, challenges and future perspectives of PNC, ANC, and HNC in Hydro-NC are presented.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"330 ","pages":"Article 121202"},"PeriodicalIF":4.6,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic characteristic identification of jacket-type offshore wind turbine using the Hilbert Huang transform under operational condition

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-04-16 DOI: 10.1016/j.oceaneng.2025.121248

Nguyen Thanh Trung , Anh-Dan Nguyen , Nguyen Huu Hung , Thai Thi Kim Chi , Nguyen Duc Thi Thu Dinh , Viet-Thanh Nguyen , Bui Ngoc Dung , Dao Cong Binh

{"title":"Dynamic characteristic identification of jacket-type offshore wind turbine using the Hilbert Huang transform under operational condition","authors":"Nguyen Thanh Trung , Anh-Dan Nguyen , Nguyen Huu Hung , Thai Thi Kim Chi , Nguyen Duc Thi Thu Dinh , Viet-Thanh Nguyen , Bui Ngoc Dung , Dao Cong Binh","doi":"10.1016/j.oceaneng.2025.121248","DOIUrl":"10.1016/j.oceaneng.2025.121248","url":null,"abstract":"<div><div>The dynamic behaviour of jacket-type offshore wind turbine structures becomes more complex due to the combined effect of environmental and rotor machines under operational conditions. Therefore, it is challenging to decompose and identify the dynamic characteristics in the structural health monitoring (SHM) system into natural frequencies of structure, rotor, and wave frequency. This study used the Hilbert Huang transform (HHT) method based on the Ensemble Empirical Mode Decomposition (EEMD) technique to evaluate the dynamic behaviour of the offshore wind turbine with the jacket-type structure. The EEMD algorithm was combined with the Hilbert transform to restrain a mode mixing in the identification process of the offshore structure during the operational condition. The vibration test of an offshore wind turbine model was conducted in the wave tank. The identified frequencies measured from the test using the EEMD-based HHT method were analysed and compared to those of the numerical method using eigenvalue analysis. The results demonstrated that the time-dependent frequency of the structure, wave and rotor excitation was successfully decomposed and identified using the Hilbert Huang transform based on the EEMD technique.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"330 ","pages":"Article 121248"},"PeriodicalIF":4.6,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0