Ocean Engineering最新文献_第2页

Novel vibration self-attenuation design of drill-string-like pipes transporting fluid with the enhancement of acoustic black hole effect 增强声黑洞效应的类钻柱输液管振动自衰减设计

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-06-02 DOI: 10.1016/j.oceaneng.2025.121694

Yang Bu , Ye Tang , Dongyang Chen , Tianzhi Yang , Qian Ding

{"title":"Novel vibration self-attenuation design of drill-string-like pipes transporting fluid with the enhancement of acoustic black hole effect","authors":"Yang Bu , Ye Tang , Dongyang Chen , Tianzhi Yang , Qian Ding","doi":"10.1016/j.oceaneng.2025.121694","DOIUrl":"10.1016/j.oceaneng.2025.121694","url":null,"abstract":"<div><div>Drill pipe constitutes a critical element of the drill string, susceptible to failure due to fatigue crack or dynamic instability induced by external excitation and double-gyroscopic effects. This paper proposes a novel type of periodically drill-string-like pipe based on photonic crystal (PC) structure and enhanced acoustic black hole (ABH) effect. The pipe is formulated using the discrete equivalent method and a two-dimensional model of Timoshenko beam theory. Based on the spectral element method (SEM) in conjunction with the transfer matrix method (TMM), a fundamental principle in the study of periodic structures, the band structure, natural frequency, frequency response, and the wave energy distribution of the proposed structure are disclosed. We find the proposed drill-string-like pipe can form low-frequency and broadband band gaps (BGs) to achieve self-suppression characteristics. However, these BGs will decay rapidly with the acceleration of spinning motion. By wrapping a viscoelastic tape of small size at the junction of ABH-pipe cells, the kinetic energy gathered at the edge of the ABH-pipe cell is dissipated effectively, resulting in vibration reduction in the pass band between the second and third BGs. This characteristic further broadens the frequency band of vibration reduction and does not disappear with the increasing spinning speed. The vibration reduction performance of the designed structure under operational conditions is further substantiated through frequency response analysis under stochastic loading scenarios. Thus, the proposed pipes receive the effective vibration self-suppression in the wide spinning-speed range. This work proposes a novel idea for the vibration suppression by the cooperation of BG and structural damping and may provide a reference for the vibration control of drill-string-like pipes in the industry.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"335 ","pages":"Article 121694"},"PeriodicalIF":4.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195233","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

The impact of counter-flow fin-shape rods cylinder and its geometric parameters on wind-induced vibration energy harvester 逆流鳍形杆筒及其几何参数对风激振动能量采集器的影响

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-06-02 DOI: 10.1016/j.oceaneng.2025.121714

Jian Qiu , Qiaoya Lv , Hanpei Xu , Dongling Li , Quan Wen

{"title":"The impact of counter-flow fin-shape rods cylinder and its geometric parameters on wind-induced vibration energy harvester","authors":"Jian Qiu , Qiaoya Lv , Hanpei Xu , Dongling Li , Quan Wen","doi":"10.1016/j.oceaneng.2025.121714","DOIUrl":"10.1016/j.oceaneng.2025.121714","url":null,"abstract":"<div><div>Improving the output power and bandwidth of small-scale wind-induced vibration piezoelectric energy harvesters (WIVPEH) is attracting increasing attention. This study proposes a novel design of a counter-flow fin-shaped rod (CFSR), which modifies the cylindrical bluff body through geometric parameter variations, and investigates the influence of these geometric parameters on the performance of WIVPEH. Numerical simulations demonstrate that the CFSR cylinder significantly enhances the performance of the WIVEH, not only achieving a cut-in wind speed of less than 1 m/s but also delivering a substantial energy output (a mechanical power output of 0.26 mW and an energy conversion efficiency of 56 %) at a wind speed of 1 m/s. Under low wind speed conditions ranging from 1 to 8 m/s, the CFSR cylinder maintains a minimum amplitude of 0.5D, greatly extending the operational bandwidth of the energy harvester. Through the study of the geometric parameters, it is found that to optimize the performance of the energy harvester, rods symmetrically installed at 90° on the surface of the cylinder should have a certain depth of groove on the windward side and maintain a specific tilt angle relative to the windward side. The CFSR cylinder at the 60° position more effectively promotes the coupling of vortex-induced vibrations (VIV) and galloping. At the wind speed of 8 m/s, the amplitude reaches 3.45D, and the mechanical energy converted is 8.7 mW. The analysis of frequency response, pressure distribution, and vortex shedding modes demonstrates that the CFSR cylinder design facilitates the coupling of VIV and galloping in wind-induced vibrations. Further analysis of time-history displacement-lift reveals the influence of the geometric parameters on the wind-induced vibrations of the CFSR cylinder bluff body. This study provides valuable insights into the parametric design and optimization of small-scale WIVPEH.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"335 ","pages":"Article 121714"},"PeriodicalIF":4.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195232","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

Effect of leading-edge tubercles and surface corrugations on the performance and cavitation characteristics of twisted hydrofoils 前缘结节和表面波纹对扭转水翼性能和空化特性的影响

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-06-02 DOI: 10.1016/j.oceaneng.2025.121663

Onur Usta , Sinem Öksüz , Fahri Çelik

{"title":"Effect of leading-edge tubercles and surface corrugations on the performance and cavitation characteristics of twisted hydrofoils","authors":"Onur Usta , Sinem Öksüz , Fahri Çelik","doi":"10.1016/j.oceaneng.2025.121663","DOIUrl":"10.1016/j.oceaneng.2025.121663","url":null,"abstract":"<div><div>This study examines the effects of leading edge tubercles (LETs) and surface corrugations (SCs) on the hydrodynamic performance and cavitation development of twisted hydrofoils under non-cavitating and cavitating flow conditions. Detached Eddy Simulation (DES) method is used for cavitating flow simulations, while the unsteady RANS method is utilized for non-cavitating flows. Initially, a benchmark twisted NACA 0009 hydrofoil was simulated under cavitating conditions consistent with the literature to validate the numerical results. Following this validation, a twisted NACA 0015 hydrofoil (Baseline) and its four Corrugated and one Tubercled configurations were analyzed at high Reynolds numbers. To verify the CFD model, a Grid Convergence Index (GCI) based uncertainty assessment was conducted using time-averaged lift coefficients for the twisted NACA 0015 hydrofoil at 3° AoA under cavitating flow conditions. Numerical simulations were then performed at angles of attack (AoAs) of 1°, 3°, 5°, and 7° to evaluate lift, drag, hydrodynamic efficiency, surface cavitation area, and cavitation period, thereby providing a comprehensive understanding of the influence of LETs and SCs. The results indicate that under non-cavitating conditions, the Corrugated hydrofoil achieves higher efficiency than the other configurations at all AoAs. Under cavitating conditions, the Baseline shows the highest efficiency at low AoAs, although the Corrugated and Tubercled designs progressively approach its performance at higher AoAs. The Tubercled hydrofoil effectively delays stall and has less cavitation area for all AoAs than that of Baseline, while the Corrugated geometry achieves the smallest cavitation area at 7° AoA.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"335 ","pages":"Article 121663"},"PeriodicalIF":4.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195228","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

Hydrodynamic performance of a forward bent duct buoy oscillating water column wave energy converter 前弯浮筒振荡水柱波能转换器的水动力性能

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-06-02 DOI: 10.1016/j.oceaneng.2025.121700

Yixin Xiang , Yongliang Zhang , Chen Wang

{"title":"Hydrodynamic performance of a forward bent duct buoy oscillating water column wave energy converter","authors":"Yixin Xiang , Yongliang Zhang , Chen Wang","doi":"10.1016/j.oceaneng.2025.121700","DOIUrl":"10.1016/j.oceaneng.2025.121700","url":null,"abstract":"<div><div>This study investigated the hydrodynamic performance of the forward bent duct buoy oscillating water column (FBDB-OWC) wave energy converter (WEC), focusing on the effects of side-wall angle, bottom-wall angle, top-wall angle and corner radius. Using three-dimensional numerical modeling based on computational fluid dynamics, this research evaluated the hydrodynamic performance through the pressure drop, airflow rate and free surface inside the chamber, and assessed the energy conversion efficiency of the converter. The results indicate that the side-wall angle of the duct has a minimal effect on capture width ratio. The bottom-wall angle significantly improves the energy conversion efficiency, while modifications to the top-wall angle offer additional gains. When both wall angles are set to 25°, the FBDB configuration achieves a substantial increase in wave energy capture, with an 84.4 % pneumatic power increase compared to the configuration without angled walls. Additionally, an optimal corner radius further enhances energy conversion, leading to a 125.9 % increase in the capture width ratio relative to the FBDB converter without angled walls and rounded corners. These findings offer crucial insights for the optimization of FBDB-OWC WEC designs, contributing to improved energy capture efficiency and overall performance.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"335 ","pages":"Article 121700"},"PeriodicalIF":4.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195887","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

Evolution analysis of key mechanical properties during the forming process of JCOE and JCOC pipes and its influence on collapse failure JCOE和JCOC管材成形过程关键力学性能演化分析及其对坍塌破坏的影响

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-05-31 DOI: 10.1016/j.oceaneng.2025.121684

Shaocong Qi , Guoyi Shen , Xihai Liu , Wanlin Cheng , Ruixue Zhai , Qingdang Meng , Jun Zhao , Gaochao Yu

{"title":"Evolution analysis of key mechanical properties during the forming process of JCOE and JCOC pipes and its influence on collapse failure","authors":"Shaocong Qi , Guoyi Shen , Xihai Liu , Wanlin Cheng , Ruixue Zhai , Qingdang Meng , Jun Zhao , Gaochao Yu","doi":"10.1016/j.oceaneng.2025.121684","DOIUrl":"10.1016/j.oceaneng.2025.121684","url":null,"abstract":"<div><div>The LSAW pipes are main trunk pipes for offshore oil and gas energy development. Enhancing the buckling resistance performance of submarine pipes and accurately evaluating its collapse pressure are research priorities. This study analyzes for the first time the evolution of residual stress and compressive strength during the full-process forming of JCOE and JCOC pipes, and reveals the influence mechanism of mechanical properties on collapse. The yield plateau phenomenon and variable elastic modulus behavior of X65 steel were described by modifying Chaboche model. A theoretical model for the evolution of mechanical properties during JCO forming, expansion, and compression processes were established. The full-process forming and collapse simulations were conducted. The experimental and theoretical yield stresses have good consistency. The calibration ratio and <em>t</em>/<em>D</em> ratio are key factors affecting the yield stress and residual stress. Compared with JCOE pipes, JCOC pipes have lower residual stress but higher compressive strength. Within calibration ratio range of ±0.4 % to ±1.0 %, residual stress is the main factor affecting collapse. As the calibration ratio increases, residual stress improves and compressive yield stress becomes a key factor. This study is of great significance for the forming and buckling analysis of pipelines.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"335 ","pages":"Article 121684"},"PeriodicalIF":4.6,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178225","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

Three-dimensional simulation of wave-induced seabed liquefaction in the Chengdao area 埕岛地区海底波浪液化的三维模拟

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-05-31 DOI: 10.1016/j.oceaneng.2025.121648

Youqi Wang , Shengyi Jiao , Haibo Chen , Ruichen Cao , Xianqing Lv

引用次数: 0

Supervised visual docking network for unmanned surface vehicles using auto-labeling in real-world water environments 基于自动标记的无人水面车辆监督视觉对接网络

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-05-31 DOI: 10.1016/j.oceaneng.2025.121609

Yijie Chu , Ziniu Wu , Yong Yue , Eng Gee Lim , Paolo Paoletti , Xiaohui Zhu

{"title":"Supervised visual docking network for unmanned surface vehicles using auto-labeling in real-world water environments","authors":"Yijie Chu , Ziniu Wu , Yong Yue , Eng Gee Lim , Paolo Paoletti , Xiaohui Zhu","doi":"10.1016/j.oceaneng.2025.121609","DOIUrl":"10.1016/j.oceaneng.2025.121609","url":null,"abstract":"<div><div>Unmanned Surface Vehicles (USVs) are increasingly applied to water operations such as environmental monitoring and river-map modeling. However, precise autonomous docking at ports or stations remains a significant challenge, often relying on manual control or external positioning systems, which severely limits fully autonomous deployments. In this paper, we propose a novel supervised learning framework featuring an auto-labeling pipeline to enable USVs autonomous visual docking. The primary innovation lies in our automated data collection pipeline, which directly provides paired relative pose data and corresponding images, eliminating the conventional need for manual labeling, such as tagging bounding boxes. We introduce the Neural Dock Pose Estimator (NDPE), capable of accurately predicting the relative dock pose without relying on traditional methods such as handcrafted feature extraction, camera calibration, or peripheral markers. Unlike common bounding-box-based detection algorithms (e.g., Yolo-like methods), our NDPE explicitly predicts the relative pose transformation between the camera frame and USV body frame, significantly simplifying the data annotation and training process. Additionally, the generality of our data collection pipeline allows integration with various neural network architectures, ensuring broad applicability beyond the specific architecture demonstrated here. Experimental validation in real-world water environments demonstrates that NDPE robustly handles variations in docking distances and USV velocities, ensuring accurate and stable autonomous docking performance. The effectiveness and practicality of our approach are clearly verified through extensive experiments. The dataset, tutorial and experimental videos for this project are publicly available at: <span><span>https://sites.google.com/view/usv-docking/home</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"335 ","pages":"Article 121609"},"PeriodicalIF":4.6,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184728","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

Localized Trefftz method for wave generation and propagation in a two-dimensional numerical wave tank 二维数值波槽中波浪产生和传播的局部Trefftz方法

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-05-31 DOI: 10.1016/j.oceaneng.2025.121670

Xiran Lin , Liangbin Xu , Yan-Cheng Liu , Chia-Ming Fan

{"title":"Localized Trefftz method for wave generation and propagation in a two-dimensional numerical wave tank","authors":"Xiran Lin , Liangbin Xu , Yan-Cheng Liu , Chia-Ming Fan","doi":"10.1016/j.oceaneng.2025.121670","DOIUrl":"10.1016/j.oceaneng.2025.121670","url":null,"abstract":"<div><div>This study proposes a meshless numerical method for nonlinear free surface wave propagation, known as the localized Trefftz method (LTM). The method employs the fundamental solution of the Laplace equation as T-complete functions and integrates the explicit Euler method, semi-Lagrangian method, ramp functions, and sponge layers to construct a numerical wave flume, enabling accurate and efficient simulation of wave generation and propagation. Based on potential flow theory, wave propagation is formulated as a time-dependent boundary value problem governed by the Laplace equation for velocity potential and two nonlinear free surface boundary conditions. To absorb wave energy and prevent reflection, a sponge layer is implemented at the end of the flume. Initially, LTM is applied to simulate the generation of finite-amplitude, high-steepness waves at the wave generation end. Subsequently, it is used to model the propagation of regular waves over underwater obstacles, incorporating an exponential decay function in the sponge layer to further mitigate wave reflection at the flume's end. As LTM does not require global mesh generation, it is computationally efficient and particularly suitable for moving boundary problems. The accuracy and stability of the proposed method are validated through comparative analyses of four numerical examples against existing numerical results.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"335 ","pages":"Article 121670"},"PeriodicalIF":4.6,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184726","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

Axial and normal pullout tests of chains in soft clay 软粘土中锚链轴向和法向拉拔试验

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-05-31 DOI: 10.1016/j.oceaneng.2025.121698

Naloan Coutinho Sampa , Fernando Schnaid , Marcelo Maia Rocha , Roberto Cudmani

{"title":"Axial and normal pullout tests of chains in soft clay","authors":"Naloan Coutinho Sampa , Fernando Schnaid , Marcelo Maia Rocha , Roberto Cudmani","doi":"10.1016/j.oceaneng.2025.121698","DOIUrl":"10.1016/j.oceaneng.2025.121698","url":null,"abstract":"<div><div>Mooring systems are vital for stabilizing floating structures, where chain-soil interactions play a critical role in anchor performance. Accurate prediction of inverse catenary profiles, anchor trajectories, and load attenuation relies on a detailed understanding of these interactions. This study investigated the mechanisms of soil-chains or soil-steel plates interactions through axial and normal pullout tests on scale-reduced models in soft clay, conducted under undrained conditions. The load-displacement curves revealed three phases: linear-viscoelastic, strain softening, and residual, influenced by chain geometry and soil properties. Key parameters, including strain softening degree, displacement at peak resistance, bearing capacity factor, effective widths in bearing and sliding, and friction coefficient, were quantified and compared with values reported in the literature. The bearing capacity factor ranged from 7.05 to 12.87, while the effective width in bearing varied from 2.0 to 3.7, depending on the bearing area. The effective width in sliding was 9.34 for welded chains and 9.80 for non-welded chains, with friction coefficients (<span><math><mrow><mi>μ</mi></mrow></math></span>) ranging from 0.32 to 0.39, depending on chain stiffness and embedment direction. Strain softening caused resistance reduction of 10 % for welded chains, 13 % for 12.7 mm steel plates, and 38–56 % for 25.45 mm steel plates in normal pullout tests. The normalized displacement at peak resistance generally increased with normalized length, except for welded chains in axial pullout tests. These findings contribute to a deeper understanding of chain-soil interaction mechanisms and provide practical insights for predicting tangential and normal soil resistances, as well as inverse catenary profiles, in mooring system design.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"335 ","pages":"Article 121698"},"PeriodicalIF":4.6,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178236","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

Integrating detailed power take-off system models in wave energy converter simulations using an FMI-based co-simulation approach 利用基于fmi的联合仿真方法集成波能转换器仿真中详细的功率输出系统模型

IF 4.6 2区工程技术

Ocean Engineering Pub Date : 2025-05-31 DOI: 10.1016/j.oceaneng.2025.121651

Xinyuan Shao , Jan Forsberg , Jonas W. Ringsberg

{"title":"Integrating detailed power take-off system models in wave energy converter simulations using an FMI-based co-simulation approach","authors":"Xinyuan Shao , Jan Forsberg , Jonas W. Ringsberg","doi":"10.1016/j.oceaneng.2025.121651","DOIUrl":"10.1016/j.oceaneng.2025.121651","url":null,"abstract":"<div><div>The power take-off (PTO) system is a core component of a wave energy converter (WEC) that significantly influences its power performance. Careful design and testing of PTO systems are essential in WEC development. Numerical simulations have largely replaced physical testing, accelerating the PTO system design process. However, one major obstacle still prevents numerical modelling of the PTO system from achieving its full capability: integrating the PTO system model into the global simulation of the WEC system to include the effects of all subsystems. This paper uses a co-simulation approach based on the Functional Mock-Up Interface (FMI) standard to integrate a detailed PTO system model into a global WEC model that includes hydrodynamic, mechanical, and mooring subsystems. The approach is compared against a model incorporating a simplified linear-damper PTO system. The results indicate that a higher-fidelity PTO system model can have a significant impact on predictions of WEC motion, mooring fatigue damage accumulation, and power performance. For example, it is observed that a simplified PTO model can lead to a tenfold underestimation of mooring fatigue damage under some environmental conditions.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"335 ","pages":"Article 121651"},"PeriodicalIF":4.6,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178235","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