Journal of Marine Science and Application最新文献_第9页

Time-Varying Channel Estimation and Symbol Detection for Underwater Acoustic FBMC-OQAM Communications 水声FBMC-OQAM通信时变信道估计与符号检测

4区工程技术

Journal of Marine Science and Application Pub Date : 2023-09-01 DOI: 10.1007/s11804-023-00358-2

Xuesong Lu, Yulin Jiang, Jingxuan Li, Wei Yan, Xingbin Tu, Fengzhong Qu

引用次数: 0

Influence of the Blocking Effect of Circulating Water Channels on Hydrodynamic Coefficient Estimation for Autonomous Underwater Vehicles 循环水通道阻塞效应对自主水下航行器水动力系数估算的影响

4区工程技术

Journal of Marine Science and Application Pub Date : 2023-09-01 DOI: 10.1007/s11804-023-00354-6

Lingyu Li, Hongde Qin, Peng Li, Xiangqian Wang

引用次数: 0

Application of CRITIC–EDAS-Based Approach in Structural Health Monitoring and Maintenance of Offshore Wind Turbine Systems 基于critical - edas的方法在海上风电系统结构健康监测与维护中的应用

4区工程技术

Journal of Marine Science and Application Pub Date : 2023-09-01 DOI: 10.1007/s11804-023-00355-5

J. A. Agbakwuru, T. C. Nwaoha, N. E. Udosoh

引用次数: 0

Lateral Loading Capacity of Jacket Foundation with Three Helical Piles for Offshore Wind Turbines 海上风电机组三螺旋桩夹套基础横向承载力研究

4区工程技术

Journal of Marine Science and Application Pub Date : 2023-09-01 DOI: 10.1007/s11804-023-00366-2

Hongyan Ding, Jianhua Luo, Puyang Zhang, Conghuan Le

引用次数: 0

Comparative Study of Numerical Methods for Predicting Wave-Induced Motions and Loads on a Semisubmersible 半潜船波浪运动与载荷预测数值方法的比较研究

4区工程技术

Journal of Marine Science and Application Pub Date : 2023-09-01 DOI: 10.1007/s11804-023-00345-7

Qian Gao, Changqing Jiang, Youjun Yang, Uwe Ritschel

{"title":"Comparative Study of Numerical Methods for Predicting Wave-Induced Motions and Loads on a Semisubmersible","authors":"Qian Gao, Changqing Jiang, Youjun Yang, Uwe Ritschel","doi":"10.1007/s11804-023-00345-7","DOIUrl":"https://doi.org/10.1007/s11804-023-00345-7","url":null,"abstract":"Abstract Numerical simulation tools based on potential-flow theory and/or Morison’s equation are widely used for predicting the hydrodynamic responses of floating offshore wind platforms. In general, these simplified approaches are used for the analysis under operational conditions, albeit with a carefully selected approach to account for viscous effects. Nevertheless, due to the limit hydrodynamic modelling to linear and weakly nonlinear models, these approaches severely underpredict the low-frequency nonlinear wave loads and dynamic responses of a semisubmersible. They may not capture important nonlinearities in severe sea states. For the prediction of wave-induced motions and loads on a semisubmersible, this work systematically compares a fully nonlinear viscous-flow solver and a hybrid model combining the potential-flow theory with Morison-drag loads in steep waves. Results show that when nonlinear phenomena are not dominant, the results obtained by the hybrid model and the high-fidelity method show reasonable agreement, while larger discrepancies occur for highly nonlinear regular waves. Specifically, regular waves with various steepness over different frequencies are focused in the present study, which supplements the understanding in applicability of these two groups of method.","PeriodicalId":46687,"journal":{"name":"Journal of Marine Science and Application","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134916523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Research on the Hydrodynamic and Cavitation Performance of Semi-Balanced Twisted Rudders 半平衡扭曲舵的水动力及空化性能研究

4区工程技术

Journal of Marine Science and Application Pub Date : 2023-09-01 DOI: 10.1007/s11804-023-00350-w

Jinming Ye, Di Zhang, Xianfeng Zhang, Xiaoyu Zou

引用次数: 0

Optimisation of a Multi-Body Three Floats Wave Energy Converter in Irregular Waves 不规则波中多体三浮波能量转换器的优化设计

4区工程技术

Journal of Marine Science and Application Pub Date : 2023-09-01 DOI: 10.1007/s11804-023-00353-7

T. M. Ahmed, A. R. Bassiouny, K. A. Geba, Y. Welaya

引用次数: 0

Scale Effect of a Kappel Tip-Rake Propeller Kappel前倾螺旋桨的尺度效应

4区工程技术

Journal of Marine Science and Application Pub Date : 2023-09-01 DOI: 10.1007/s11804-023-00359-1

Chen-Wei Chen, Xupeng Chen, Zhaoye Zhou, Liwan Chen

{"title":"Scale Effect of a Kappel Tip-Rake Propeller","authors":"Chen-Wei Chen, Xupeng Chen, Zhaoye Zhou, Liwan Chen","doi":"10.1007/s11804-023-00359-1","DOIUrl":"https://doi.org/10.1007/s11804-023-00359-1","url":null,"abstract":"Abstract In this paper, the scale effect of Kappel tip-rake propellers with different end plate designs was studied using computational fluid dynamics. Given the base size of the mesh and the appropriate numerical model for the determined simulation, the open-water performance of three Kappel propellers with different bending degrees of the end plate at different scales was calculated. Comparing the scale effect of these propellers, the scale effect of the torque coefficient of a Kappel propeller is more intense than that of the conventional propeller. In addition, the scale effect of the torque coefficient is strong when the bending degree of the end plate increases, dwarfing the scale effect on the thrust coefficient. Following the research on the scale effect of the wake field for the Kappel propeller, the laws that reveal the influence of the scale on the wake field were summarized; that is, the high-speed zone in the wake relatively expands with the increase of the scale in company with a trend of tip cross flow. The research reveals the basic variation trend and rule of the open-water performance and wake distribution for the Kappel propeller under different scales within the Reynolds number range of 4.665×10 5 −8.666×10 7 considering γ transition, as well as the characteristic differences between the Kappel propellers with different end plate designs, which will be of great significance to its optimization design and application to marine vehicles of different scales.","PeriodicalId":46687,"journal":{"name":"Journal of Marine Science and Application","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134916568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Energy Damping due to Coupled Porous Structure and Submerged Porous Plate 多孔结构与水下多孔板耦合的波浪能阻尼

4区工程技术

Journal of Marine Science and Application Pub Date : 2023-09-01 DOI: 10.1007/s11804-023-00346-6

K. R. Athul Krishna, Khansa Abdulla, D. Karmakar

引用次数: 0

Safety-Certificated Line-of-Sight Guidance of Unmanned Surface Vehicles for Straight-Line Following in a Constrained Water Region Subject to Ocean Currents 受洋流约束的受限水域中无人驾驶水面车辆直线跟随的安全认证视线引导

4区工程技术

Journal of Marine Science and Application Pub Date : 2023-09-01 DOI: 10.1007/s11804-023-00351-9

Zhouhua Peng, Jianzhong Li, Bing Han, Nan Gu

引用次数: 0