Applied Ocean Research最新文献

筛选
英文 中文
Dynamic behavior of piled jacket offshore wind turbines based on integrated aero-servo-hydro-SSI-OWT model 基于集成航空-伺服-水力-SSI-OWT 模型的桩式护套海上风力涡轮机的动态特性
IF 4.3 2区 工程技术
Applied Ocean Research Pub Date : 2024-10-05 DOI: 10.1016/j.apor.2024.104255
Mengtao Xu , Zhen Guo , Lilin Wang , Ben He , Wenjie Zhou , Hang Xu , Long Teng
{"title":"Dynamic behavior of piled jacket offshore wind turbines based on integrated aero-servo-hydro-SSI-OWT model","authors":"Mengtao Xu ,&nbsp;Zhen Guo ,&nbsp;Lilin Wang ,&nbsp;Ben He ,&nbsp;Wenjie Zhou ,&nbsp;Hang Xu ,&nbsp;Long Teng","doi":"10.1016/j.apor.2024.104255","DOIUrl":"10.1016/j.apor.2024.104255","url":null,"abstract":"<div><div>Jacket foundation is typically the preferred choice for Offshore Wind Turbines (OWTs) erected in water depth varying from 40 m to 80 m. In this paper, an integrated dynamic analysis model is designed to study the coupling between aerodynamics, servodynamics, hydrodynamics, soil-structure interaction for piled jacket OWTs. The performances of the AeroDyn and ServoDyn modules are verified by FAST, showcasing their applicability under deterministic and stochastic environmental conditions. The OWT dynamic responses, especially for <em>t-z</em> modeling, stress-transfer mechanism and structural fatigue damage, are subsequently studied. The overall deformation of the jacket calculated by the nonlinear elastic <em>t-z</em> curve in the API guideline, is overwhelmed by the <em>t-z</em> curve formulated using bounding surface plasticity framework, due to the ignorance of the loading history effect. Accompanied by a “compressed-released-recompressed” stress-transfer process, the downwind tube would experience high stress level, hence necessitating more attention in the ultimate limit state design of piled jacket structure. Otherwise, the upwind tube seems to be more decisive to the fatigue limit state design of piled jacket structure, owing to severe fluctuation in structural stress caused by a “tensed-released-re-tensed” stress-transfer tendency.</div></div>","PeriodicalId":8261,"journal":{"name":"Applied Ocean Research","volume":"153 ","pages":"Article 104255"},"PeriodicalIF":4.3,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142423893","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 optimization and performance verification of fairings for round-ended cofferdams using dam-break wave experiments and numerical simulations 利用溃坝波实验和数值模拟对圆端围堰的整流罩进行水动力优化和性能验证
IF 4.3 2区 工程技术
Applied Ocean Research Pub Date : 2024-10-04 DOI: 10.1016/j.apor.2024.104247
Guoji Xu , Zexing Jiang , Jiaguo Zhou , Lele Xu , Zhengbowen Liao , Yong Xu
{"title":"Hydrodynamic optimization and performance verification of fairings for round-ended cofferdams using dam-break wave experiments and numerical simulations","authors":"Guoji Xu ,&nbsp;Zexing Jiang ,&nbsp;Jiaguo Zhou ,&nbsp;Lele Xu ,&nbsp;Zhengbowen Liao ,&nbsp;Yong Xu","doi":"10.1016/j.apor.2024.104247","DOIUrl":"10.1016/j.apor.2024.104247","url":null,"abstract":"<div><div>Round-ended cofferdams are crucial for large-scale marine projects but are vulnerable to the complex marine environment, including waves, tides, and storms. Enhancing the hydrodynamic performance of these cofferdams is essential for improving safety and efficiency in marine construction. This study introduces a novel fairing design aimed at reducing water flow resistance during the quasi-stable stage of a tsunami. The flow field is analyzed using computational fluid dynamics (CFD) simulations, and an adaptive surrogate model is employed to optimize the parameterized fairing shape. The results demonstrate that the optimized shape significantly suppresses vortex shedding, leading to a 16.59 % reduction in the drag coefficient and a 44.3 % reduction in the lift coefficient under flow conditions. Experimental and numerical simulations of dam-break waves are conducted for two designs, R1 and R0. By comparing their flow field and force characteristics, it is found that R1 effectively separates waves during the impulse stage, reduces wave climb height, and decreases impact loads. In the quasi-stable stage, R1 mitigates the blockage effect, reducing the liquid level difference between the front and back, and thus lowering flow forces. Experimental data further reveals that when the downstream is a dry riverbed, R1′s load reduction is particularly notable, with maximum reductions of 45.62 % in the impulse stage and 28.75 % in the quasi-stable stage. When the riverbed is wet, the maximum load reduction rates are 18.04 % and 8.72 %, respectively. Therefore, R1 not only reduces the resistance of round-end cofferdams under water currents but also under extreme wave forces, providing valuable insights for advancing ocean engineering design.</div></div>","PeriodicalId":8261,"journal":{"name":"Applied Ocean Research","volume":"153 ","pages":"Article 104247"},"PeriodicalIF":4.3,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142423892","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
Study of the dynamic response of an offshore continuous beam bridge under nonlinear wave and scour 非线性波浪和冲刷下离岸连续梁桥的动态响应研究
IF 4.3 2区 工程技术
Applied Ocean Research Pub Date : 2024-10-04 DOI: 10.1016/j.apor.2024.104245
Xuan Guo , ZheYu Zhang , PiGuang Wang
{"title":"Study of the dynamic response of an offshore continuous beam bridge under nonlinear wave and scour","authors":"Xuan Guo ,&nbsp;ZheYu Zhang ,&nbsp;PiGuang Wang","doi":"10.1016/j.apor.2024.104245","DOIUrl":"10.1016/j.apor.2024.104245","url":null,"abstract":"<div><div>The study highlights the critical factors and findings regarding bridge damage susceptibility during typhoons and hurricanes, primarily due to extreme waves, scour, and storm surges. While existing research has extensively studied bridges' responses to either extreme waves or scour individually, their combined effects have not been sufficiently explored. Experiments were conducted on a scaled two-span bridge to examine its behavior under simultaneous wave and scour conditions. Results from these experiments indicate that as scour depth increases, there is a corresponding escalation in displacement of the bridge pier, acceleration of the bearing platform, and strain along the pile foundation. To further investigate these dynamics, fluid-structure interaction analysis was employed, revealing significant insights. Notably, the study found that wave height exerts a substantial influence on wave load. For instance, at a wave height of 6 m, the average peak horizontal wave load on bridge piers was 2.48 times higher than at 3 m wave height. Moreover, local scour was identified as a critical factor reducing the bearing capacity of pile foundations, thereby significantly impacting the bridge's dynamic response to nonlinear waves. Under identical wave conditions, varying scour depths (3 m, 6 m, 9 m, and 12 m) resulted in increases in peak lateral displacements at the pier top compared to non-scouring conditions. The study concludes by emphasizing the increasing risk posed to pile foundations with deeper scour depths, particularly under stronger wave conditions. Consequently, there is a crucial need to enhance the resilience of offshore bridges against these dual hazards through advanced design and protective measures.</div></div>","PeriodicalId":8261,"journal":{"name":"Applied Ocean Research","volume":"153 ","pages":"Article 104245"},"PeriodicalIF":4.3,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142423890","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
Theory for plunger-type wavemakers to generate second-order Stokes waves and Smoothed Particle Hydrodynamics verification 产生二阶斯托克斯波的柱塞式造浪机理论和平滑粒子流体力学验证
IF 4.3 2区 工程技术
Applied Ocean Research Pub Date : 2024-10-04 DOI: 10.1016/j.apor.2024.104244
Xueyan Li , Yucheng Sui , Yujie Meng , Xufeng Zhang , Abbas Khayyer , Ming He , Dongfang Liang
{"title":"Theory for plunger-type wavemakers to generate second-order Stokes waves and Smoothed Particle Hydrodynamics verification","authors":"Xueyan Li ,&nbsp;Yucheng Sui ,&nbsp;Yujie Meng ,&nbsp;Xufeng Zhang ,&nbsp;Abbas Khayyer ,&nbsp;Ming He ,&nbsp;Dongfang Liang","doi":"10.1016/j.apor.2024.104244","DOIUrl":"10.1016/j.apor.2024.104244","url":null,"abstract":"<div><div>Plunger-type wavemakers are used in ocean engineering laboratories globally. However, the wave-making theories remain incomplete due to the complex geometries of the plungers. This work derives the motion equations for an arbitrary-geometry plunger to generate second-order Stokes waves, along with the generic constraints on wave parameters. Taking wedge-shaped and cylinder-shaped plungers as examples, the motion equations and constraints are detailed. Subsequently, a smoothed particle hydrodynamics (SPH) model for the plunger-induced waves is established and validated by accurately reproducing published experimental results. Finally, the SPH model is applied to simulate the wave generation by the two plungers. The computed wave profiles, water pressures, and flow velocities are compared with their analytical solutions in terms of spatial distribution and time history. Additionally, the wave field stability and the wave generation process are evaluated. The results demonstrate that second-order Stokes waves with target waveforms can be precisely generated using an arbitrary-geometry plunger-type wavemaker within a short transition distance and time, thereby verifying the reliability of the proposed wavemaker theory.</div></div>","PeriodicalId":8261,"journal":{"name":"Applied Ocean Research","volume":"153 ","pages":"Article 104244"},"PeriodicalIF":4.3,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424490","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
Two-dimensional one-way coupled modelling for fluid-structure-seabed interactions around a semicircular breakwater using OpenFOAM 利用 OpenFOAM 建立半圆形防波堤周围流体-结构-海床相互作用的二维单向耦合模型
IF 4.3 2区 工程技术
Applied Ocean Research Pub Date : 2024-10-01 DOI: 10.1016/j.apor.2024.104249
Lin Cui , Dong-Sheng Jeng
{"title":"Two-dimensional one-way coupled modelling for fluid-structure-seabed interactions around a semicircular breakwater using OpenFOAM","authors":"Lin Cui ,&nbsp;Dong-Sheng Jeng","doi":"10.1016/j.apor.2024.104249","DOIUrl":"10.1016/j.apor.2024.104249","url":null,"abstract":"<div><div>Semicircular breakwaters, preferred for their lighter weight, wider base and superior resistance to overturning and sliding, have seen focused research on wave forces and hydrodynamic performance. Despite documented failures due to seabed instability, numerical examinations of the seabed response and stability around these structures are lacking in the literature. This study establishes an OpenFOAM model to numerically investigate hydrodynamic interactions, structural dynamics, seabed consolidation and liquefaction potential near a semicircular breakwater in two-dimensional, addressing complex fluid–structure-seabed interactions in a one-way coupling manner. A novel method for determining the compressibility of the pore fluid has been implemented, which integrates geostatic stress, atmospheric pressure and wave-induced excessive pore pressure within the seabed. The numerical results indicate that seabed responses are sensitive to the bulk modulus of pore air in partially saturated cases, where a decrease in pore pressure, an increase in the vertical effective stress and a decrease in the horizontal effective stress are observed. Further numerical analysis reveals that the most vulnerable part of the breakwater appears on the wave-facing side of the caisson, where reinforcement measurements are recommended during construction. A pronounced liquefaction zone is observed ahead of the breakwater, corresponding to the area with upward seepage, which is attributed to the combined effect of hydrodynamic interactions and direct stress action transferred from the semicircular breakwater.</div></div>","PeriodicalId":8261,"journal":{"name":"Applied Ocean Research","volume":"153 ","pages":"Article 104249"},"PeriodicalIF":4.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical investigation on the slamming loads of a truncated trimaran hull entering regular waves 截尾三体船船体进入规则波浪时的撞击载荷数值研究
IF 4.3 2区 工程技术
Applied Ocean Research Pub Date : 2024-10-01 DOI: 10.1016/j.apor.2024.104253
Pengyao Yu , Song Qu , Qiang Wang , Hang Xie
{"title":"Numerical investigation on the slamming loads of a truncated trimaran hull entering regular waves","authors":"Pengyao Yu ,&nbsp;Song Qu ,&nbsp;Qiang Wang ,&nbsp;Hang Xie","doi":"10.1016/j.apor.2024.104253","DOIUrl":"10.1016/j.apor.2024.104253","url":null,"abstract":"<div><div>For ship slamming, waves can disturb the water entry progress and thus affect the slamming load characteristics. This paper studied the slamming loads of a trimaran entering regular waves based on the CFD method. The results of a trimaran model impacting calm water and wedge impacting waves are used to verify the present method. The free surface evolution and load characteristics of the trimaran model considering wave effects are discussed. The results showed that the position at which the structure touches the wave surface depends on the formation, deformation and escape of bubble flows, which cause obvious asymmetrical flow. The enclosure of the air cavity induces a step increase in pressure, and the pressure peak appears when the bubble fully escapes. Three typical positions, wave crest, wave cross and wave through, are chosen to explore the influence of waves on slamming loads. The impact load shows a 98% difference at different wave locations. In ship load forecasting, the position of the waves relative to the hull is noteworthy. The influence of the water entry velocity on the slamming load is further discussed. Bubble retention related to the water entry velocity is the key factor affecting the peak load.</div></div>","PeriodicalId":8261,"journal":{"name":"Applied Ocean Research","volume":"153 ","pages":"Article 104253"},"PeriodicalIF":4.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424489","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 semi-analytical approach for dynamic responses of monopile-supported offshore wind turbines subjected to accidental loads 单桩支撑海上风力涡轮机在意外荷载作用下动态响应的半分析方法
IF 4.3 2区 工程技术
Applied Ocean Research Pub Date : 2024-09-28 DOI: 10.1016/j.apor.2024.104251
Ahmed Hammad, Zhaolong Yu
{"title":"A semi-analytical approach for dynamic responses of monopile-supported offshore wind turbines subjected to accidental loads","authors":"Ahmed Hammad,&nbsp;Zhaolong Yu","doi":"10.1016/j.apor.2024.104251","DOIUrl":"10.1016/j.apor.2024.104251","url":null,"abstract":"<div><div>Offshore wind energy is leading the way in sustainable energy generation. Offshore wind turbines (OWTs) need to be designed to withstand extreme or accidental loads in Ultimate Limit States (ULS) and Accidental Limit States (ALS), whereby high order eigenmodes may become significant. This paper introduces a semi-analytical approach for efficient and reliable analysis of the dynamic responses of monopile-supported OWTs subjected to accidental loads. A Rayleigh-Ritz solution is initially adopted to determine the high-order natural frequencies and eigenmodes of monopile OWTs, explicitly considering tapered towers and soil-pile interactions. Dynamic responses of OWTs are then calculated depending on the interaction schemes between accidental loads and the structures, e.g. soft contact loads (e.g. slamming, wind) and hard contact loads (e.g. ship collisions, ice impact). For soft contact loading conditions, the loads are considered independent of turbine responses, and the transient dynamic response is computed using the classical modal superposition method. While for hard contact loading conditions, the load actions depend on the contact stiffnesses and responses of the interacting bodies. A numerical contact algorithm is thus developed, and numerical iterations are performed to ensure convergence. The proposed approach is applied to the DTU 10 MW monopile-supported OWT subjected to extreme water slamming and ship collisions, respectively as example applications of soft and hard contact scenarios. The results are verified against nonlinear finite element analysis using USFOS and discussed with respect to the turbine natural frequencies and eigenmodes, contact forces and dynamic responses. A parametric analysis is conducted for ship-OWT collisions, exploring different impact scenarios by varying ship sizes, contact stiffnesses, and initial impact velocities. The proposed approach can serve as a promising tool for accidental load response analysis and the design of monopile OWTs.</div></div>","PeriodicalId":8261,"journal":{"name":"Applied Ocean Research","volume":"153 ","pages":"Article 104251"},"PeriodicalIF":4.3,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Approximation of sea surface velocity field by fitting surrogate two-dimensional flow to scattered measurements 用散射测量拟合代用二维流来近似海面速度场
IF 4.3 2区 工程技术
Applied Ocean Research Pub Date : 2024-09-28 DOI: 10.1016/j.apor.2024.104246
Karlo Jakac , Luka Lanča , Ante Sikirica , Stefan Ivić
{"title":"Approximation of sea surface velocity field by fitting surrogate two-dimensional flow to scattered measurements","authors":"Karlo Jakac ,&nbsp;Luka Lanča ,&nbsp;Ante Sikirica ,&nbsp;Stefan Ivić","doi":"10.1016/j.apor.2024.104246","DOIUrl":"10.1016/j.apor.2024.104246","url":null,"abstract":"<div><div>In this paper, a rapid approximation method is introduced to estimate the sea surface velocity field based on scattered measurements. The method uses a simplified two-dimensional flow model as a surrogate model, which mimics the real submesoscale flow. The proposed approach treats the interpolation of the flow velocities as an optimization problem, aiming to fit the flow model to the scattered measurements. To ensure consistency between the simulated velocity field and the measured values, the boundary conditions in the numerical simulations are adjusted during the optimization process. Additionally, the relevance of quantity and quality of the scattered measurements is assessed, emphasizing the importance of the measurement locations within the domain as well as explaining how these measurements contribute to the accuracy and reliability of the sea surface velocity field approximation. The proposed methodology has been successfully tested in both synthetic and real-world scenarios, leveraging measurements obtained from Global Positioning System (GPS) drifters and high-frequency (HF) radar systems. The adaptability of this approach for different domains, measurement types and conditions implies that it is suitable for real-world submesoscale scenarios where only an approximation of the sea surface velocity field is sufficient.</div></div>","PeriodicalId":8261,"journal":{"name":"Applied Ocean Research","volume":"153 ","pages":"Article 104246"},"PeriodicalIF":4.3,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357802","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
YOLO-MRS: An efficient deep learning-based maritime object detection method for unmanned surface vehicles YOLO-MRS:基于深度学习的高效无人水面飞行器海洋物体检测方法
IF 4.3 2区 工程技术
Applied Ocean Research Pub Date : 2024-09-28 DOI: 10.1016/j.apor.2024.104240
Changdong Yu , Haoke Yin , Chenyi Rong , Jiayi Zhao , Xiao Liang , Ruijie Li , Xinrong Mo
{"title":"YOLO-MRS: An efficient deep learning-based maritime object detection method for unmanned surface vehicles","authors":"Changdong Yu ,&nbsp;Haoke Yin ,&nbsp;Chenyi Rong ,&nbsp;Jiayi Zhao ,&nbsp;Xiao Liang ,&nbsp;Ruijie Li ,&nbsp;Xinrong Mo","doi":"10.1016/j.apor.2024.104240","DOIUrl":"10.1016/j.apor.2024.104240","url":null,"abstract":"<div><div>Deep learning-based object detection for an unmanned surface vehicle (USV) is an important way of visual perception. However, current methods perform poorly when performing complex maritime object detection tasks. It also lacks available datasets of complex maritime objects for visual perception system of USVs. In order to solve these problems, we propose an improved maritime object detection method, called YOLO-MRS, based on lightweight YOLOv8 model in this paper. Specifically, we introduce a multi-scale cross-axis attention (MCA) mechanism into the backbone network of the model to establish long-distance dependencies between pixels to capture global feature information. In addition, we introduce Simplified Spatial Pyramid Pooling-Fast (SimSPPF) to the backbone to enhance prediction accuracy. Also, considering computational efficiency, we replace the ordinary convolutional layers in the backbone network and neck network with refocused convolutional (RefConv) layers to reduce model parameters. Especially, we construct a maritime object detection dataset, termed MODD-13, which contains over 9000 precisely annotated images. The proposed MODD-13 sufficiently considers the characteristics of object categories (13 types), image diversity, sample independence, and background confusion, and can be used as a benchmark dataset for maritime object detection. The final experimental results show that compared with the representative YOLO series models, YOLO-MRS improves the average mAP50 accuracy by 1.8%–7% and mAP50-95 by 1.1%–11.5%, and effectively balances detection accuracy and computational efficiency, thereby effectively achieving fast and accurate detection of maritime objects.</div></div>","PeriodicalId":8261,"journal":{"name":"Applied Ocean Research","volume":"153 ","pages":"Article 104240"},"PeriodicalIF":4.3,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357803","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
Bayesian modeling and mechanical simulations for fragility curve estimation of the mooring system of marine hydrokinetic devices 贝叶斯建模和机械模拟用于估算海洋水动力装置系泊系统的脆性曲线
IF 4.3 2区 工程技术
Applied Ocean Research Pub Date : 2024-09-28 DOI: 10.1016/j.apor.2024.104243
Victor Augusto Durães de Faria , Neda Jamaleddin , Anderson Rodrigo de Queiroz , Mohammed Gabr
{"title":"Bayesian modeling and mechanical simulations for fragility curve estimation of the mooring system of marine hydrokinetic devices","authors":"Victor Augusto Durães de Faria ,&nbsp;Neda Jamaleddin ,&nbsp;Anderson Rodrigo de Queiroz ,&nbsp;Mohammed Gabr","doi":"10.1016/j.apor.2024.104243","DOIUrl":"10.1016/j.apor.2024.104243","url":null,"abstract":"<div><div>This work uses Bayesian modeling and mechanical model simulations through the Ansys-AQWA software to construct fragility curve estimates for marine hydrokinetic devices, more specifically, their mooring system. The fragility curves proposed here associate wind speed levels with the risk of damage to the equipment and could be used to better understand the susceptibility of these devices to damage from hurricanes. Our proposed modeling framework uses acoustic Doppler current profiler measurements from a site located off the North Carolina coast and the RM4 conversion device from the Sandia National Laboratory. By evaluating different scenarios with and without dynamic tension in mooring lines due to changes in current velocities caused by extreme wind speeds, our results indicate that the risks of damage may be significant depending not only on the average current velocity but also on the velocity variation.</div></div>","PeriodicalId":8261,"journal":{"name":"Applied Ocean Research","volume":"153 ","pages":"Article 104243"},"PeriodicalIF":4.3,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357800","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信