Marine Structures最新文献_第2页

Development of a coupled time-domain model for complexly moored multi-body system with application in catamaran float-over deck installation 复杂系泊多体系统耦合时域模型的建立及其在双体船浮式甲板安装中的应用

IF 4 2区工程技术

Marine Structures Pub Date : 2025-05-19 DOI: 10.1016/j.marstruc.2025.103849

Meiyan Zou , ChuanZheng Chen , Mingsheng Chen , Panpan Xiao , Mingjun Ouyang , Yichang Tang , Wenhua Zhao , Xinliang Tian

{"title":"Development of a coupled time-domain model for complexly moored multi-body system with application in catamaran float-over deck installation","authors":"Meiyan Zou , ChuanZheng Chen , Mingsheng Chen , Panpan Xiao , Mingjun Ouyang , Yichang Tang , Wenhua Zhao , Xinliang Tian","doi":"10.1016/j.marstruc.2025.103849","DOIUrl":"10.1016/j.marstruc.2025.103849","url":null,"abstract":"<div><div>Multiple floating structures offer a versatile solution for offshore engineering. However, these systems are inherently complex due to hydrodynamic interactions and intricate connections between structures and moorings. This study aims to develop a coupled time-domain model for multiple floating structures, and to demonstrate its application to catamaran float-over operations. The developed model is validated against AQWA using a catamaran float-over installation of a Spar platform as a benchmark case. Results indicate that adopting a state-space model enables fast and accurate predictions of multiple floating structures. Additionally, it is observed that iterative algorithms significantly influence the prediction of impact dynamics when impacts and separations occur alternately. The developed model exhibits good agreement with AQWA in forecasting the kinematics and impact forces of the catamaran float-over system, confirming its reliability for simulating multiple offshore structures.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103849"},"PeriodicalIF":4.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084018","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

Modal matrix reduction for fully coupled integrated load analysis of floating structures 浮式结构全耦合综合荷载分析的模态矩阵简化

IF 4 2区工程技术

Marine Structures Pub Date : 2025-05-17 DOI: 10.1016/j.marstruc.2025.103845

Borja Servan-Camas , Irene Berdugo-Parada , Julio Garcia-Espinosa , Andres Pastor-Sanchez

{"title":"Modal matrix reduction for fully coupled integrated load analysis of floating structures","authors":"Borja Servan-Camas , Irene Berdugo-Parada , Julio Garcia-Espinosa , Andres Pastor-Sanchez","doi":"10.1016/j.marstruc.2025.103845","DOIUrl":"10.1016/j.marstruc.2025.103845","url":null,"abstract":"<div><div>Structural elasticity of floating wind turbines in integrated load analysis (ILA) is typically addressed by modelling the substructure with simplified beam models. The main reason can be found in the computational cost of the structural solver when solving the fully coupled hydroelastic problems. In this work, a reduce order method based on modal matrix reduction is applied to reduce the computational cost of the structural solver. The main idea is to largely reduce the number of degrees of freedom of the structural system by retaining only those modes with significant energy.</div><div>The seakeeping hydrodynamics is solved using the finite element framework SeaFEM. The structural particulars are introduced into this framework to fully integrate the fluid-structure interaction. The hydroelastic model is also coupled with the wind turbine solver OpenFAST, resulting in a complete aero-hydro-servo-elastic tool for the ILA analysis of floating turbines.</div><div>A methodology is proposed to identify critical conditions and hotspots based on the structural energy. An application case of the present strategy is presented for a detailed structural design of the well-known OC4-DeepCwind. The consistency of the modal approximation and methodology is verified against the FE structural solution. The capabilities of the proposed ILA framework are demonstrated in a fully coupled and detailed structural analysis, instead of at component level, with a significant reduction of its computational time.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103845"},"PeriodicalIF":4.0,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070117","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

Theoretical modeling of simplified offshore wind turbines with monopile support under multiple environmental load coupling 多环境荷载耦合下简化单桩支撑海上风力机理论建模

IF 4 2区工程技术

Marine Structures Pub Date : 2025-05-13 DOI: 10.1016/j.marstruc.2025.103842

Yiming Huang , Qingzhi Wang , Jintao Jiang , Piguang Wang , Mi Zhao , Xiuli Du

{"title":"Theoretical modeling of simplified offshore wind turbines with monopile support under multiple environmental load coupling","authors":"Yiming Huang , Qingzhi Wang , Jintao Jiang , Piguang Wang , Mi Zhao , Xiuli Du","doi":"10.1016/j.marstruc.2025.103842","DOIUrl":"10.1016/j.marstruc.2025.103842","url":null,"abstract":"<div><div>A theoretical framework is formulated to examine the simplification methodology for monopile-supported offshore wind turbine systems (OWTs), where soil-monopile interactions are represented as a spring-damper mechanism under multi-hazard conditions involving earthquake, wave, and wind loads. The study begins by establishing an integrated OWTs model incorporating interdependent physical phenomena: three-dimensional spring-damping elements characterize soil-monopile dynamics, hydrodynamic impedance functions quantify water-monopile interactions in submerged conditions, linearized wave equations govern wave loads, while wind loads acting on rotor blades. The dynamic behavior of OWTs is subsequently analyzed through three methodological components: implementation of domain-specific boundary constraint formulations, decomposition of scalar potential fields, and application of state-space transfer matrix techniques. Comparative validation protocols demonstrate the computational precision of the proposed non-simplified analytical framework relative to established reference methodologies, while systematic benchmarking reveals critical distinctions between this rigorous solution and conventional spring-damper approximations. Parametric sensitivity investigations are subsequently conducted using the developed model to quantify influential design variables. These analytical advancements establish a theoretical foundation for optimized numerical modeling of offshore wind energy infrastructure, particularly in addressing the multi-physical coupling inherent in monopile-supported structural systems.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103842"},"PeriodicalIF":4.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941657","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 response of OWTs with scoured jacket foundation subjected to seismic and environmental loads 地震和环境荷载作用下带冲刷护套基础的水轮机动力响应

IF 4 2区工程技术

Marine Structures Pub Date : 2025-05-12 DOI: 10.1016/j.marstruc.2025.103839

Yikang Wang , Chen Wang , Hao Zhang , Fayun Liang , Zhouchi Yuan

{"title":"Dynamic response of OWTs with scoured jacket foundation subjected to seismic and environmental loads","authors":"Yikang Wang , Chen Wang , Hao Zhang , Fayun Liang , Zhouchi Yuan","doi":"10.1016/j.marstruc.2025.103839","DOIUrl":"10.1016/j.marstruc.2025.103839","url":null,"abstract":"<div><div>Tetrapod piled jacket (TPJ) foundations have been widely employed to support offshore wind turbines (OWTs). However, under the influence of environmental loads and wave-current-induced scouring phenomenon, there remains a notable research deficiency concerning the seismic response of TPJ supported OWT system. In these earthquake-prone areas, TPJ-supported OWT may encounter excessive overturning deformations and dynamic responses during its service life. To fill the gap in the current seismic design codes for TPJ foundations, this study comprehensively analyzed the seismic response of the TPJ system subjected to stochastic environmental loads at scoured sites, considering several potential influencing factors, such as the scour depth, soil strength, seismic frequency content and intensity. It is found that the high-stiffness steel framework of the TPJ system demonstrates a robust ability to withstand the lateral responses of acceleration and deformation. The development of scour depth alters the failure location of the TPJ structure and the pile-soil interaction mechanism, leading to an expansion in the acceleration and bending moment response, and an uplift trend in the pile foundation. Although higher soil strength improves the resistance of the TPJ system to vertical and horizontal deformations, it also amplifies the acceleration and bending moment responses of the TPJ system. Notably, the bending moments are greater in the leeward piles compared to the windward piles, necessitating additional protective measures in the design. These findings offer valuable insights into the seismic response of TPJ-supported OWTs in complex paralic environments.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103839"},"PeriodicalIF":4.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936017","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 compression behavior of circular high-strength self-compacting concrete-filled steel tubes with chloride corrosion 含氯腐蚀的圆形高强自密实钢管混凝土轴压特性研究

IF 4 2区工程技术

Marine Structures Pub Date : 2025-05-12 DOI: 10.1016/j.marstruc.2025.103844

Weiwei Wang , Xuetao Lyu , Zhiyuan Zheng , Ben Li , Jun Zheng , Fanghong Wu , Yang Yu

{"title":"Axial compression behavior of circular high-strength self-compacting concrete-filled steel tubes with chloride corrosion","authors":"Weiwei Wang , Xuetao Lyu , Zhiyuan Zheng , Ben Li , Jun Zheng , Fanghong Wu , Yang Yu","doi":"10.1016/j.marstruc.2025.103844","DOIUrl":"10.1016/j.marstruc.2025.103844","url":null,"abstract":"<div><div>Concrete-filled steel tubes (CFSTs) are widely used as bridge piers in marine environments, where the outer steel tubes are highly susceptible to chloride corrosion, which degrades the carrying capacity of structural elements. This paper presents an experimental investigation on the axial compressive behavior of high-strength self-compacting concrete-filled steel tubes (HSSCCFST) with chloride corrosion. The study aims to determine the effects of steel ratio and corrosion rate on the behavior of steel plate and HSSCCFST columns subjected to chloride corrosion. The failure modes, load-displacement curves, load-strain relationship, carrying capacity, stiffness, ductility, confinement effect coefficient, strength index, and strength reduction factor are analyzed. The results show that the thicker the wall thickness of steel coupon, the more normal fracture occurs in the steel tensile coupons, the mechanical properties of steel coupons decrease as the corrosion rate increases. The axial compressive stiffness, ductility, residual ultimate strength factor of HSSCCFST decrease with the increase of corrosion rate, however, the impact of chloride corrosion deceases with the increase of steel ratio. Besides, the increase in corrosion rate weakens the composite action between the steel tube and the concrete core. A simplified formula of ultimate strength reduction factor considering corrosion rate and steel ratio is proposed, and CECS 104–99 is recommended to predict the ultimate strength of HSSCCFST stub column affected by chloride corrosion.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103844"},"PeriodicalIF":4.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936016","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

Insight and prediction of spudcan elastic stiffness profile in stiff-over-soft clays 硬-软黏土中spudcan弹性刚度剖面的认识与预测

IF 4 2区工程技术

Marine Structures Pub Date : 2025-05-09 DOI: 10.1016/j.marstruc.2025.103840

Xiu Zhe Wang , Xin Tong Wang , Zhen Wang , Fei Liu , Qiang Qiang Gao , Jiang Tao Yi

{"title":"Insight and prediction of spudcan elastic stiffness profile in stiff-over-soft clays","authors":"Xiu Zhe Wang , Xin Tong Wang , Zhen Wang , Fei Liu , Qiang Qiang Gao , Jiang Tao Yi","doi":"10.1016/j.marstruc.2025.103840","DOIUrl":"10.1016/j.marstruc.2025.103840","url":null,"abstract":"<div><div>The elastic stiffness of spudcan foundations in stiff-over-soft clays exhibits changes similar to “punch-through” failure, creating significant uncertainty for jack-up platform operations. This study conducted a three-dimensional small-strain finite element analysis on this specific topic to discretely simulate the spudcan elastic stiffness profile in stiff-over-soft clay. The influence of the soil surface, layered interface, and their coupling effects were isolated and separately evaluated, and a simple semi-theoretical framework for the influence zone was proposed. The key parameters of layered soil (thickness ratio, shear modulus ratio, soil heterogeneity coefficient, and backflow) affecting the influence mechanism of spudcan elastic stiffness were evaluated and analyzed. It was found that the effects of the soil surface and layered interface competed with each other. The vertical deformation mechanism of the spudcan reduces the “punch-through” failure risk of elastic stiffness by transferring more of the soil deformation to the bottom soft clay layer. Based on the findings from the parameter study, a simplified profile is proposed to predict the variation of the spudcan elastic stiffness. The proposed prediction method provides a comprehensive view of elastic stiffness in stiff-over-soft clay for offshore in-site assessment.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103840"},"PeriodicalIF":4.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143928565","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

TMD suppresses 2-DOF vortex-induced vibration of a cylinder TMD抑制了圆柱体的二自由度涡激振动

IF 4 2区工程技术

Marine Structures Pub Date : 2025-05-05 DOI: 10.1016/j.marstruc.2025.103836

Jixiang Song , Fengjiao Zhao , Ye Yao

{"title":"TMD suppresses 2-DOF vortex-induced vibration of a cylinder","authors":"Jixiang Song , Fengjiao Zhao , Ye Yao","doi":"10.1016/j.marstruc.2025.103836","DOIUrl":"10.1016/j.marstruc.2025.103836","url":null,"abstract":"<div><div>Due to its simple structure, low cost, and convenient installation, using a Tuned Mass Damper (TMD) to suppress cylindrical vortex-induced vibration has good prospects. However, there are few literature reports on this aspect, so this paper uses TMD to suppress the 2-DOF vortex induced vibration of a cylinder based on the wake oscillator (Reynolds number <em>Re</em>=300∼1.5 × 10<sup>5</sup>). The theoretical equation for the bidirectional fluid-structure coupling vibration composed of TMD and cylinder is established. Then, numerical methods were used to verify the bidirectional vortex-induced vibration of the cylinder. Finally, the effects of TMD mass and damping on the amplitude, drag, Lift, and trajectory changes of vortex-induced vibration of a cylinder at different reduced velocities were studied. The results show that TMD effectively reduces the vibration amplitude of cylindrical vortex-induced vibration based on wake oscillators in most reduced velocity ranges. Under certain operating conditions, TMD cannot control the vortex-induced vibration of the cylinder, and even increases the amplitude of the vortex-induced vibration, providing the possibility of capturing the energy generated by the motion of the cylinder for power generation. The drag and lift coefficient curves change drastically from single or double-wave peaks to three or four-wave peaks. When the reduced velocity is (6, 9), TMD reduces cylindrical vortex-induced vibration's amplitude and displacement trajectory, decreasing 23.56 % to 82.41 % in the X and Y directions.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103836"},"PeriodicalIF":4.0,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906359","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

Analytical study and multi-objective optimization of low-frequency flexural vibration band gaps of periodic orthogonal stiffened meta-plates 周期正交加筋夹层板低频弯曲振动带隙的分析研究及多目标优化

IF 4 2区工程技术

Marine Structures Pub Date : 2025-05-03 DOI: 10.1016/j.marstruc.2025.103837

Xunyu Li , Yong Hu , Yinggang Li

{"title":"Analytical study and multi-objective optimization of low-frequency flexural vibration band gaps of periodic orthogonal stiffened meta-plates","authors":"Xunyu Li , Yong Hu , Yinggang Li","doi":"10.1016/j.marstruc.2025.103837","DOIUrl":"10.1016/j.marstruc.2025.103837","url":null,"abstract":"<div><div>In this paper, the low-frequency flexural vibration band gap characteristics of periodic orthogonal stiffened meta-plates with local resonators are analytically investigated. A theoretical model of periodic orthogonal stiffened meta-plate is established considering the coupling effect of Timoshenko beam and Kirchhoff plate. The flexural vibration band gaps of periodic orthogonal stiffened meta-plates are calculated by using the plane wave expansion method and Bloch theorem. In addition, numerical calculation and experimental tests were conducted to verify the proposed theoretical model. Results show that the proposed theoretical model of periodic orthogonal stiffened meta-plates can be effectively and efficiently applied to predict the low-frequency flexural wave band gaps and vibration isolation performance in a specific frequency range, which shows a good agreement with numerical simulation and experimental results. Furthermore, the multi-objective Non-dominated Sorting Genetic Algorithms-II combination with the theoretical model of periodic orthogonal stiffened meta-plates is utilized to achieve the optimization design of low-frequency broadband flexural vibration band gaps.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103837"},"PeriodicalIF":4.0,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902526","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

Wave scattering by an elastic plate in a viscous fluid of finite depth 弹性板在有限深度粘性流体中的波散射

IF 4 2区工程技术

Marine Structures Pub Date : 2025-05-02 DOI: 10.1016/j.marstruc.2025.103833

Saniya Suhail , Hima Manoj K. , Sunanda Saha

{"title":"Wave scattering by an elastic plate in a viscous fluid of finite depth","authors":"Saniya Suhail , Hima Manoj K. , Sunanda Saha","doi":"10.1016/j.marstruc.2025.103833","DOIUrl":"10.1016/j.marstruc.2025.103833","url":null,"abstract":"<div><div>This work examines a two-dimensional wave scattering problem in a viscous, incompressible fluid of finite depth over an impermeable bottom by a semi-infinite and finite floating elastic plate. Weakly viscous potential theory is utilized to frame the problem using the velocity potential and stream function. The paper addresses three main objectives: first, it analyzes the behavior of the distorted positive real root of the dispersion relation in both the water region and the region covered by the plate; second, the boundary value problem is solved separately for both semi-infinite and finite elastic plates using the matched eigenfunction expansion method; third, the impact of different parameters on various hydrodynamic coefficients is examined through several numerical plots. We find that the viscosity affects the low-frequency waves more than the high-frequency ones in the plane progressive wave analysis. Further, it seems that the effect of viscosity increases with a decreasing water depth. From the wave scattering problem with varying viscosity, it is noted that, at low viscosity levels, the wave energy absorption by the medium is minimal, resulting in a reflection coefficient close to 1. With an increase in the viscosity to moderate levels, more wave energy is dissipated due to viscous effects, reducing the reflection coefficient to nearly 0.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103833"},"PeriodicalIF":4.0,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143894450","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

Numerical investigation on wind loads of an offshore floating photovoltaic structure considering the pitch motion and photovoltaic panel-deck interaction effects 考虑俯仰运动和光伏板-甲板相互作用的海上浮式光伏结构风荷载数值研究

IF 4 2区工程技术

Marine Structures Pub Date : 2025-05-01 DOI: 10.1016/j.marstruc.2025.103835

Wenping Luo , Xiudi Ren , Xiantao Zhang , Xinliang Tian , Xin Li

{"title":"Numerical investigation on wind loads of an offshore floating photovoltaic structure considering the pitch motion and photovoltaic panel-deck interaction effects","authors":"Wenping Luo , Xiudi Ren , Xiantao Zhang , Xinliang Tian , Xin Li","doi":"10.1016/j.marstruc.2025.103835","DOIUrl":"10.1016/j.marstruc.2025.103835","url":null,"abstract":"<div><div>Offshore floating photovoltaic (OFPV) equipment is emerging for capturing offshore solar energy. Wind load, a significant environmental factor affecting OFPV systems, plays a crucial role in safety evaluation. While some scholars have investigated the photovoltaic (PV) array load, their focus has primarily been on fixed or coastal types, neglecting the unique characteristics of OFPV such as dynamic motion and deck effect. Therefore, this study aims to investigate the impact of dynamic pitch motion and PV-deck interaction on wind load. Firstly, a large eddy simulation (LES) model is developed and validated through time-step and grid convergence analyses as well as comparison with existing numerical studies and model tests. Subsequently, the dynamic pitch motion effect on PV units, PV arrays and PV arrays with decks is explored by assuming an ideal sine function for pitch motion. Additionally, the PV-deck interaction effect is uncovered through a comparison of PV array with and without decks. Further, a novel idea of formula modelling aiming at total wind loads is proposed and discussed. Results indicate the dynamic effect of pitch motion on OFPV is unremarkable, and the wind load could be evaluated through static results for engineering applications. Besides, the PV wind load is reduced by introducing deck but the deck load becomes dominant when wind flows through it first. The proposed idea of formula modelling has the potential to guide FPV wind load selection in engineering design.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103835"},"PeriodicalIF":4.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143894449","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