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学者姓名：徐普
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Abstract ：
Floating photovoltaics (PVs) are progressively constructed in the ocean sea; therefore, the effect that freak waves have on their structural design needs to be considered. This paper developed a dedicated numerical model coupling the floating PV platform and mooring line structures to investigate their dynamic responses under freak waves. A feasible superposition approach is presented to generate freak wave sequences via the combination of transient waves and random waves. A large floating PV platform moored by twenty lines for a water depth of 45 m was designed in detail according to the actually measured ocean environmental and geological conditions. The global time domain analyses of the floating PV mooring structures were implemented to obtain dynamic responses, including PV platform motions and the mooring line configuration and tension under freak waves. A comparison of the response results with those caused by random waves was conducted to illustrate the intuitive evidence of the freak wave effects, which offer a significant reference for the preliminary design of the floating PV platform and mooring line structures.
Keyword ：
dynamic response dynamic response floating photovoltaic (PV) platform floating photovoltaic (PV) platform freak waves freak waves mooring line structure mooring line structure
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| GB/T 7714 | Xu, Pu , Zhang, Zirui , Li, Siliang et al. Numerical Investigation into the Dynamic Responses of Floating Photovoltaic Platform and Mooring Line Structures under Freak Waves [J]. | JOURNAL OF MARINE SCIENCE AND ENGINEERING , 2024 , 12 (1) . |
| MLA | Xu, Pu et al. "Numerical Investigation into the Dynamic Responses of Floating Photovoltaic Platform and Mooring Line Structures under Freak Waves" . | JOURNAL OF MARINE SCIENCE AND ENGINEERING 12 . 1 (2024) . |
| APA | Xu, Pu , Zhang, Zirui , Li, Siliang , Song, Qiming , Liu, Wei . Numerical Investigation into the Dynamic Responses of Floating Photovoltaic Platform and Mooring Line Structures under Freak Waves . | JOURNAL OF MARINE SCIENCE AND ENGINEERING , 2024 , 12 (1) . |
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Based on the new pile-plate bridge structure project of the coastal national highway in Fujian Province, the hydrodynamic experiments of the pile-plate bridge structure under the impact of plunging waves were conducted in the wave flume. The wave climbing height and the wave forces of the pile-plate bridge structure under the impact of three stages of plunging waves were investigated, and compared to those under the impact of regular waves. The influence laws of the incident wave height, wave period, and depth of the water on the wave climbing height and the wave force were analyzed. The results show that the hydrodynamic characteristics of the new pile-plate bridge structure impacted by the three stages of plunging waves are significantly different, there is evident wave climbing phenomenon in the about breaking and breaking stages, and the wave surface elevation after the climb of the plunging wave in the about breaking stage attains 1. 99 times of the regular wave; the horizontal wave force of the plunging wave at the about breaking stage is the strongest, which is 4. 48 times of the amplitude of the vertical wave force in the same stage, and can be 3.08 times of the horizontal wave force of the regular wave. The wave parameters and water depth significantly influence the hydrodynamic characteristics in three stages of plunging waves. With the increase of the incident wave height and water depth,the wave surface elevation and vertical wave force in the breaking stage exceed other stages. The increase of wave period makes the wave surface elevation in the complete breaking stage and the vertical wave force in the about breaking stage exceed those in the breaking stage. © 2024 Chinese Vibration Engineering Society. All rights reserved.
Keyword ：
Hydrodynamics Hydrodynamics Piles Piles Plates (structural components) Plates (structural components) Water waves Water waves
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| GB/T 7714 | Xu, Pu , Zhang, Shengyu , Zheng, Zhongkai et al. Experimental study on hydrodynamic characteristics of new pile-plate bridge structures impacted by plunging waves [J]. | Journal of Vibration and Shock , 2024 , 43 (7) : 355-364 . |
| MLA | Xu, Pu et al. "Experimental study on hydrodynamic characteristics of new pile-plate bridge structures impacted by plunging waves" . | Journal of Vibration and Shock 43 . 7 (2024) : 355-364 . |
| APA | Xu, Pu , Zhang, Shengyu , Zheng, Zhongkai , Liu, Qiujiang , Qui, Junfeng . Experimental study on hydrodynamic characteristics of new pile-plate bridge structures impacted by plunging waves . | Journal of Vibration and Shock , 2024 , 43 (7) , 355-364 . |
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Abstract ：
依托福建省滨海国道涉海浅滩段新型桩板桥梁结构工程，通过波浪水槽开展卷破波冲击桩板桥梁结构水动力特性试验，研究了三个阶段卷破波冲击作用下波浪爬高和桩板桥梁结构所受波浪力水动力特征，并与规则波冲击作用试验结果进行对比，分析了入射波高、波浪周期、水深对波浪爬高和波浪力的影响规律。结果表明：三个阶段卷破波冲击新型桩板桥梁结构的水动力特性显著不同，破碎前阶段和破碎中阶段卷破波会出现明显的波浪爬高现象，破碎前阶段卷破波爬高后的波面高程可达规则波的1.99倍；破碎前阶段的水平波浪力最强，是同阶段竖向波浪力幅值的4.48倍，可达规则波水平波浪力的3.08倍。波浪特征参数和水深对三个阶段卷破波冲击水动力特性影响显著，入射波高和水深的增加会使破碎中阶段卷破波的波面高程和竖向波浪力超过其他阶段；波浪周期的增加会使破碎后阶段卷破波冲击前波面高程和破碎前阶段的竖向波浪力超过破碎中阶段卷破波。
Keyword ：
卷破波 卷破波 桩板桥梁结构 桩板桥梁结构 水动力特性 水动力特性 波浪力 波浪力 波浪爬高 波浪爬高
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| GB/T 7714 | 徐普 , 张晟宇 , 郑中凯 et al. 卷破波冲击新型桩板桥梁结构水动力特性试验研究 [J]. | 振动与冲击 , 2024 , 43 (07) : 355-364 . |
| MLA | 徐普 et al. "卷破波冲击新型桩板桥梁结构水动力特性试验研究" . | 振动与冲击 43 . 07 (2024) : 355-364 . |
| APA | 徐普 , 张晟宇 , 郑中凯 , 刘秋江 , 邱俊峰 . 卷破波冲击新型桩板桥梁结构水动力特性试验研究 . | 振动与冲击 , 2024 , 43 (07) , 355-364 . |
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As the most adequate configuration, steel lazy wave risers (SLWRs) are developed for deep-sea oil and gas exploitation projects. However, SLWRs are very sensitive to ocean currents and internal solitary wave (ISW). Based on a 3D modified slender rod theory, a nonlinear dynamic model for the SLWR suffering from vessel motions (VMs), surface waves (SWs), ocean currents and ISW is established. According to the equivalence principle, equivalent parameters for the buoyancy section are introduced in the dynamic model. Besides, the applicability and formulas for different ISW theories are described. Finally, the nonlinear SLWR dynamic responses under four cases are compared to investigate the influence of the ISW and ocean currents. The results show that the ISW can significantly induce the oscillation displacements of the SLWR, especially along the horizontal direction near the ISW interface. The dynamic bending moments between the hang-off point and interface significantly intensify due to the ISW. The ISW affects the dynamic effective tension of the SLWR in the lower layer fluid more markedly than that in the upper layer fluid. In addition to the interface zone, the impact of ocean currents on the SLWR dynamic response seems to be more significant than that of the ISW.
Keyword ：
Internal solitary wave Internal solitary wave Ocean current Ocean current Slender rod theory Slender rod theory SLWR SLWR
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| GB/T 7714 | Ruan, Weidong , Chen, Miaoyi , Nie, Qinglin et al. Dynamic response of steel lazy wave riser considering the excitation of internal solitary wave and ocean currents [J]. | OCEAN ENGINEERING , 2024 , 294 . |
| MLA | Ruan, Weidong et al. "Dynamic response of steel lazy wave riser considering the excitation of internal solitary wave and ocean currents" . | OCEAN ENGINEERING 294 (2024) . |
| APA | Ruan, Weidong , Chen, Miaoyi , Nie, Qinglin , Xu, Pu , Li, Jiantao , Wang, Xuwei . Dynamic response of steel lazy wave riser considering the excitation of internal solitary wave and ocean currents . | OCEAN ENGINEERING , 2024 , 294 . |
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Integral buckle arrestors are regarded as the most effective arresting devices, which can provide an obstruction to a propagating buckle thereby protecting downstream pipelines. In the present study, numerical frameworks were established to reproduce the phenomenon of buckling propagating and crossing under hydrostatic pressure, and a strong consistency between measurements and predictions was achieved. The stress levels and deformation configurations of the assembly were carefully examined for two different failure modes. Then, broad parametric analyses on the crossover pressure were performed covering key material properties and geometries. After that, machine learning techniques were developed and used for predictions of failure modes, crossover pressure, and arresting efficiency, respectively. Four algorithms, including Random Forest, Multilayer Perceptron, K-Nearest Neighbors, and Support Vector Machine, were implemented using a dataset with seven variables. The prediction performance was evaluated by standard statistical metrics, and it was found that Multi-layer Perceptron model exhibited the better prediction accuracy for both classification and regression problems. Additionally, the existing experimental results were also used to verify the reliability of the machine learning model. The results demonstrate that the machine learning techniques can offer relatively accurate predictions for both flattening and flipping failure modes.
Keyword ：
Buckling failure Buckling failure External pressure External pressure Finite elements analysis Finite elements analysis Integral buckle arrestor Integral buckle arrestor Offshore pipeline Offshore pipeline Oil and gas engineering Oil and gas engineering Steel Steel
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| GB/T 7714 | Wang, Xipeng , Wang, Chuangyi , Yuan, Lin et al. Predictions of failure mode and arresting efficiency of integral buckle arrestors using FEM and machine learning methods [J]. | ENGINEERING FAILURE ANALYSIS , 2024 , 159 . |
| MLA | Wang, Xipeng et al. "Predictions of failure mode and arresting efficiency of integral buckle arrestors using FEM and machine learning methods" . | ENGINEERING FAILURE ANALYSIS 159 (2024) . |
| APA | Wang, Xipeng , Wang, Chuangyi , Yuan, Lin , Xu, Pu , Ding, Zhi . Predictions of failure mode and arresting efficiency of integral buckle arrestors using FEM and machine learning methods . | ENGINEERING FAILURE ANALYSIS , 2024 , 159 . |
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The deepwater S-lay pipeline maintains high tension, bending moment, and stress in the overbend section, exhibiting substantially dynamic responses due to pipe-stinger roller interactions. This paper presents a refined Slay pipeline model capable of accurately describing the forces and deformations on the pipeline section. In this model, the pipeline is discretized into beam particles and beam elements using the vector form intrinsic finite element (VFIFE) method. Meanwhile, the equivalent beam particle technique is developed to account for both the local forces and deformations of the pipeline as well as its overall static and dynamic responses. Through program coding, a dynamic time-domain simulation was accomplished for a 12-inch pipeline being laid to a water depth of 1000 m to provide a detailed illustration of the S-lay modeling process. Furthermore, dynamic behaviours of the pipeline in the overbend were systematically investigated under various groups of the pipe diameter and the stinger roller spacing. The results indicate that the stress and deformation on the upper section of the pipeline are more significant than those on the lower section. The equivalent beam particle method extends the capabilities of the VFIFE for the detailed analyses of local dynamic behaviours of deepwater S-lay pipelines.
Keyword ：
Deepwater S -Lay Deepwater S -Lay Equivalent beam particle method Equivalent beam particle method Overbend section Overbend section Subsea pipeline Subsea pipeline Vector form intrinsic finite element (VFIFE) Vector form intrinsic finite element (VFIFE)
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| GB/T 7714 | Xu, Pu , Hu, Yiming , Wang, Xipeng et al. Refined VFIFE modeling on dynamic behaviours of deepwater S-lay pipeline in overbend section [J]. | OCEAN ENGINEERING , 2024 , 302 . |
| MLA | Xu, Pu et al. "Refined VFIFE modeling on dynamic behaviours of deepwater S-lay pipeline in overbend section" . | OCEAN ENGINEERING 302 (2024) . |
| APA | Xu, Pu , Hu, Yiming , Wang, Xipeng , Zheng, Jixiang , Han, Bo . Refined VFIFE modeling on dynamic behaviours of deepwater S-lay pipeline in overbend section . | OCEAN ENGINEERING , 2024 , 302 . |
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该文根据闽江流域历史观测资料，利用线性回归、Mann-Kendall趋势检验和Morlet小波分析等方法分析研究闽江流域水文要素时空变化特征及其演变规律。结果表明：1960-2022年，闽江流域降雨量无显著变化趋势，年降雨量和汛期降雨量的显著准周期具有高度同步性，均分别为29 a和7 a; 1973-2022年，闽江流域典型测站松溪站和清水壑站的汛期蒸发量和年蒸发量均呈现上升变化趋势，松溪站蒸发量上升趋势更显著，年蒸发量存在25 a和14 a的准周期变化，清水壑站年蒸发量存在28 a和13 a的准周期变化；1950-2022年，闽江下游控制测站竹岐站汛期平均径流量和年平均径流量均呈现下降变化趋势，前者存在17 a、6 a和3 a的准周期变化，后者存在18 a、13 a和6 a的准周期变化。研究结果可为闽江流域洪水管理和水资源调度提供数据支撑和科学依据。
Keyword ：
Mann-Kendall趋势检验 Mann-Kendall趋势检验 Morlet小波 Morlet小波 水文要素 水文要素 闽江流域 闽江流域
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| GB/T 7714 | 孙浩岩 , 贺茜 , 徐普 et al. 闽江流域水文要素时间序列特征分析 [J]. | 水利科技 , 2024 , PageCount-页数: 9 (02) : 1-9 . |
| MLA | 孙浩岩 et al. "闽江流域水文要素时间序列特征分析" . | 水利科技 PageCount-页数: 9 . 02 (2024) : 1-9 . |
| APA | 孙浩岩 , 贺茜 , 徐普 , 余志明 , 邹清水 . 闽江流域水文要素时间序列特征分析 . | 水利科技 , 2024 , PageCount-页数: 9 (02) , 1-9 . |
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卷破波是近海环境中常见的破碎波浪，对近海结构物具有较大的破坏性。基于CFD软件FLOW-3D建立二维波浪水槽，对比5种形态的卷破波冲击下透空式面板的受力特性和波浪爬高情况，并讨论了面板相对净空高度、相对水深和迎浪面倾角的影响。研究表明：5个形态的卷破波中，P2形态卷破波的水平波浪力最大，P3形态卷破波的爬高最显著，P1至P3形态卷破波的竖向波浪力趋于相等；面板相对净空高度、相对水深和迎浪面倾角对卷破波冲击作用力和爬高有较大影响，相对净空高度的增大能有效削减卷破波冲击力和爬高，而相对水深的增加将导致透空式面板受到的卷破波水平、竖向波浪力和波浪爬高增大；随着迎浪面倾角从0°增大到60°,波浪爬高逐渐减小，卷破波作用力先增大后减小，P1形态卷破波的水平、竖向波浪力的变化幅度最大，P4形态卷破波的竖向波浪力减小幅度最大，P3形态卷破波的爬高减小最显著。
Keyword ：
净空高度 净空高度 卷破波 卷破波 迎浪面倾角 迎浪面倾角 透空式面板 透空式面板
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| GB/T 7714 | 肖宇 , 邱俊峰 , 张必胜 et al. 卷破波冲击下透空式面板受力特性数值模拟 [J]. | 水道港口 , 2023 , 44 (01) : 39-46 . |
| MLA | 肖宇 et al. "卷破波冲击下透空式面板受力特性数值模拟" . | 水道港口 44 . 01 (2023) : 39-46 . |
| APA | 肖宇 , 邱俊峰 , 张必胜 , 郑中凯 , 徐普 . 卷破波冲击下透空式面板受力特性数值模拟 . | 水道港口 , 2023 , 44 (01) , 39-46 . |
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双层管结构是深海油气输运最为有效的方式之一。本文建立深海J型铺设双层管整体力学模型，充分考虑内外管耦合连接以及外管与海床土的动力相互作用，通过对比验证数值模型的有效性；在深海环境随机波浪、海流和铺管船运动共同作用下进行J型铺设双层管整体动力响应分析，得到双层管外管和内管的动力响应特性，进一步探究扶正器刚度、外管和内管径厚比对双层管受力与变形响应的影响。结果表明：扶正器刚度的增大导致外管与内管张力响应幅值比值显著增大，外管和内管径厚比对相应张力、弯矩、应力和应变响应幅值的比值也有较大影响。分析结果可为深海J型铺设双层管设计与施工提供理论依据。
Keyword ：
J型铺设 J型铺设 动力响应 动力响应 双层管 双层管 扶正器 扶正器 深海 深海
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| GB/T 7714 | 徐普 , 谢靖 , 杜志新 . 深海J型铺设双层管动力响应影响分析 [J]. | 船舶力学 , 2023 , 27 (04) : 548-557 . |
| MLA | 徐普 et al. "深海J型铺设双层管动力响应影响分析" . | 船舶力学 27 . 04 (2023) : 548-557 . |
| APA | 徐普 , 谢靖 , 杜志新 . 深海J型铺设双层管动力响应影响分析 . | 船舶力学 , 2023 , 27 (04) , 548-557 . |
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该文利用线性回归法、Mann-Kendall法和Morlet小波分析法研究九龙江流域水文要素趋势特征及演变规律，结果表明：九龙江流域降雨量除最大3日降雨量有一定下降趋势外，其余变量均呈现上升趋势，各变量趋势变化均不显著；北溪代表站浦南水文站径流量各变量均呈现下降趋势，其中年最大1日和年最小1日径流量下降趋势显著；西溪代表站郑店水文站年、汛期和年最大1日径流量均呈现下降趋势，年最小1日径流量呈现上升趋势，其中年最大1日径流量下降趋势非常显著；石码潮位站年最高潮位在年际上存在非常显著的增长趋势；年降雨量存在14 a左右的周期，浦南水文站和郑店水文站年径流量分别存在18 a和13 a左右的周期，石码潮位站年最高潮位存在8 a和34 a左右的周期。
Keyword ：
Mann-Kendall Mann-Kendall Morlet小波 Morlet小波 九龙江 九龙江 时间序列 时间序列 水文要素 水文要素
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| GB/T 7714 | 余志明 , 邹清水 , 徐普 et al. 九龙江流域水文要素时间序列特征分析 [J]. | 水利科技 , 2023 , 6 (03) : 60-65 . |
| MLA | 余志明 et al. "九龙江流域水文要素时间序列特征分析" . | 水利科技 6 . 03 (2023) : 60-65 . |
| APA | 余志明 , 邹清水 , 徐普 , 贺茜 , 江勇 . 九龙江流域水文要素时间序列特征分析 . | 水利科技 , 2023 , 6 (03) , 60-65 . |
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