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学者姓名：王丕光
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Abstract ：
Water-pile-soil interaction and the three-dimensional scattered wave effect play crucial roles in the seismic response of structures built on saturated seabed subjected to vertical P-wave incidents. This study proposes a fully coupled three-dimensional continuum model of water-pile-saturated media to investigate the seismic response of the system under vertical seismic excitation. By employing Helmholtz decomposition and the method of variable separation, the governing equations are decoupled based on assumed boundary and interface conditions, yielding the solution equation in the frequency domain. The effects of various pile and soil parameters on the seismic response are analyzed from multiple perspectives, along with the impact on the spatial distribution of three-dimensional scattered wave effects. Results indicate that the seismic response of piles and saturated soil is significantly influenced by the presence of water and the three-dimensional scattered wave effect.
Keyword ：
Water-pile-soil interaction Water-pile-soil interaction Analytical solution Analytical solution Saturated soil Saturated soil Vertical P wave Vertical P wave Three-dimensional continuum model Three-dimensional continuum model
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| GB/T 7714 | Wang, Baoxin , Wang, Piguang , Zhao, Mi et al. Three-dimensional fully coupled analytical solution for a water-pile-saturated soil system under vertical P-wave incident [J]. | APPLIED MATHEMATICAL MODELLING , 2025 , 138 . |
| MLA | Wang, Baoxin et al. "Three-dimensional fully coupled analytical solution for a water-pile-saturated soil system under vertical P-wave incident" . | APPLIED MATHEMATICAL MODELLING 138 (2025) . |
| APA | Wang, Baoxin , Wang, Piguang , Zhao, Mi , Du, Xiuli . Three-dimensional fully coupled analytical solution for a water-pile-saturated soil system under vertical P-wave incident . | APPLIED MATHEMATICAL MODELLING , 2025 , 138 . |
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Abstract ：
The dynamic responses of water-pile-soil system subjected to horizontal earthquakes considering seabed flexibility on hydrodynamic pressures is investigated in this paper. The hydrodynamic pressure on the pile is obtained by the inviscid compressible fluid theory and the absorption of pressure waves due to the seabed flexibility is modeled by using a reflection coefficient which is frequency independent. The horizontal resistance of the soil is obtained based on the viscoelastic dynamic continuum model. Based on the analytical solution for the seismic responses of the free-field soil, the numerical model for the seismic response of the pile is developed by using the finite element method. Parametric studies are further conducted to illustrate the influence of seabed flexibility on the seismic responses of the pile.
Keyword ：
Seabed flexibility Seabed flexibility Water-pile-soil interaction Water-pile-soil interaction Seismic response Seismic response Horizontal earthquakes Horizontal earthquakes Finite element method Finite element method
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| GB/T 7714 | Wang, Piguang , Wang, Baoxin , Cheng, Xinglei et al. Effects of seabed flexibility on the seismic responses of offshore piles considering water-pile-soil interaction [J]. | OCEAN ENGINEERING , 2024 , 308 . |
| MLA | Wang, Piguang et al. "Effects of seabed flexibility on the seismic responses of offshore piles considering water-pile-soil interaction" . | OCEAN ENGINEERING 308 (2024) . |
| APA | Wang, Piguang , Wang, Baoxin , Cheng, Xinglei , Dong, Zhenhua , Zhao, Mi , Du, Xiuli . Effects of seabed flexibility on the seismic responses of offshore piles considering water-pile-soil interaction . | OCEAN ENGINEERING , 2024 , 308 . |
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Abstract ：
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.
Keyword ：
Costal continuous beam bridge Costal continuous beam bridge Dynamic response Dynamic response Local scour Local scour Multiple hazards Multiple hazards Nonlinear wave Nonlinear wave
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| GB/T 7714 | Guo, Xuan , Zhang, Zheyu , Wang, PiGuang . Study of the dynamic response of an offshore continuous beam bridge under nonlinear wave and scour [J]. | APPLIED OCEAN RESEARCH , 2024 , 153 . |
| MLA | Guo, Xuan et al. "Study of the dynamic response of an offshore continuous beam bridge under nonlinear wave and scour" . | APPLIED OCEAN RESEARCH 153 (2024) . |
| APA | Guo, Xuan , Zhang, Zheyu , Wang, PiGuang . Study of the dynamic response of an offshore continuous beam bridge under nonlinear wave and scour . | APPLIED OCEAN RESEARCH , 2024 , 153 . |
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Abstract ：
The p-y curve method provides a relatively simple and efficient means for analyzing the cyclic response of horizontally loaded piles. This study proposes a p-y spring element based on a bounding surface p-y model, which can be readily implemented in Abaqus software using the user-defined element (UEL) interface. The performance of these p-y spring elements is validated by simulating field tests of laterally loaded piles documented in the literature. The developed spring element effectively replicates the nonlinear hysteresis, displacement accumulation, and stiffness degradation observed in soft clay. Subsequently, a finite element model of a large-diameter monopile is established using the proposed spring element. A comprehensive numerical investigation is conducted to explore both the monotonic and cyclic responses of large-diameter monopiles in soft clays. The results are presented and discussed in terms of pile head load-displacement curves, the evolution of rotation angles at the mud surface, and cyclic p-y curves. Additionally, empirical formulas are proposed to predict the evolution of cumulative rotation angles and peak bending moments under both one-way and two-way cyclic loading conditions. The results provide valuable insights into the mechanism of pile-soil interaction under lateral cyclic loading.
Keyword ：
soft clay soft clay p-y curve p-y curve lateral cyclic loading lateral cyclic loading bounding surface model bounding surface model monopile monopile
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| GB/T 7714 | Cheng, Xinglei , Yang, Jinhui , Wang, Piguang et al. Cyclic Lateral Response of Large-Diameter Monopiles in Soft Clays Using Bounding Surface-Based Analytical p-y Curves [J]. | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS , 2024 . |
| MLA | Cheng, Xinglei et al. "Cyclic Lateral Response of Large-Diameter Monopiles in Soft Clays Using Bounding Surface-Based Analytical p-y Curves" . | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS (2024) . |
| APA | Cheng, Xinglei , Yang, Jinhui , Wang, Piguang , El Naggar, Mohamed Hesham , Wang, Mingyuan , Lu, Qun et al. Cyclic Lateral Response of Large-Diameter Monopiles in Soft Clays Using Bounding Surface-Based Analytical p-y Curves . | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS , 2024 . |
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Abstract ：
基于有限元软件ABAQUS平台,建立了非匀质饱和黏土场地的海上风电桩–筒复合基础数值计算模型,对比研究竖向荷载V、水平荷载H和弯矩荷载M作用下不同筒结构尺寸的桩–筒复合基础的承载力系数,并采用正交试验法开展桩–筒复合基础的各向承载性能的影响因素研究.结果表明,饱和黏土的非匀质特性系数K对竖向承载力系数NcV影响较小;K对水平承载力系数NcH和抗弯承载力系数NcM的影响呈指数型递减.筒结构直径D和入土深度L对各向承载力系数的影响存在交互作用.D对桩–筒复合基础承载力系数的影响最大,可以通过增加筒结构直径从而有效地提高桩–筒复合基础的承载性能.研究结果为海上风电桩–筒复合基础的设计提供了依据.
Keyword ：
海上风电 海上风电 桩—筒复合基础 桩—筒复合基础 正交试验 正交试验 承载力系数 承载力系数 非匀质饱和黏土 非匀质饱和黏土
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| GB/T 7714 | 孙艳国 , 许成顺 , 杜修力 et al. 海上风电桩–筒复合基础承载性能研究 [J]. | 工程科学学报 , 2023 , 45 (3) : 489-498 . |
| MLA | 孙艳国 et al. "海上风电桩–筒复合基础承载性能研究" . | 工程科学学报 45 . 3 (2023) : 489-498 . |
| APA | 孙艳国 , 许成顺 , 杜修力 , 王丕光 , 席仁强 , 孙毅龙 . 海上风电桩–筒复合基础承载性能研究 . | 工程科学学报 , 2023 , 45 (3) , 489-498 . |
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Abstract ：
无限域吸收边界和爆炸波输入是水下爆炸载荷数值模拟的两个关键问题. 本文借鉴基于内部子结构的地震波动输入方法和爆源子结构多尺度分析方法, 考虑水下爆炸载荷与地震载荷同属于波动问题, 提出一种水下爆炸作用下爆源子结构的爆炸波输入方法, 该方法首先通过对爆源区域进行水下爆炸波自由场的波场分解, 并利用地震波的内部子结构输入方法, 将该自由波场运动转换为等效爆炸波输入载荷, 从而实现了水下爆炸问题中冲击波的输入; 本文采用圆形爆源子结构区域, 并采用AUTODYN软件中一维自由场模型计算水下爆炸作用下该区域的自由波场压力时程. 进一步, 基于连分式近似方法提出了一种模拟无限域水体辐射效应的高精度时域人工边界条件, 该吸收边界可设置于离结构和爆源子结构较近处. 本文提出的分析方法通过圆形爆源子结构进行水下爆炸载荷的转化, 并采用高精度吸收边界大大减少计算区域, 既保证了计算精度, 又降低了单元数量, 具有较高的计算效率和较强的实用性. 通过数值算例分析, 验证了本文模型与方法的准确性, 模拟了水下爆炸作用下的冲击波和气泡脉动阶段测点的压力时程曲线, 并研究了圆形结构对水下近场爆炸波散射效应的影响规律.
Keyword ：
水下爆炸 水下爆炸 水−结构相互作用 水−结构相互作用 人工边界条件 人工边界条件 爆源子结构 爆源子结构 散射 散射
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| GB/T 7714 | 王丕光 , 卢冉冉 , 闫秋实 et al. 水下爆炸作用下基于声学的爆源子结构输入方法 [J]. | 力学学报 , 2023 , 55 (4) : 915-924 . |
| MLA | 王丕光 et al. "水下爆炸作用下基于声学的爆源子结构输入方法" . | 力学学报 55 . 4 (2023) : 915-924 . |
| APA | 王丕光 , 卢冉冉 , 闫秋实 , 李述涛 , 杜修力 . 水下爆炸作用下基于声学的爆源子结构输入方法 . | 力学学报 , 2023 , 55 (4) , 915-924 . |
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Abstract ：
中国大多数海洋场地存在上覆软弱地层,这种海床特性对海上风电场建设十分不利.为研究上覆软黏土层对新型桩-筒复合基础承载性能的影响,基于有限元软件ABAQUS,建立不同厚度的上覆软黏土层场地中桩-筒复合基础数值分析模型,分别对桩-筒复合基础施加单向荷载(V、H、M)和复合荷载(H-M),研究上覆软黏土层厚度对各向极限承载力、桩-筒复合基础中各结构荷载分担比以及初始刚度kinit的影响.结果表明:桩-筒复合基础各向极限承载力随着上覆软黏土层厚度的增加而减小,当上覆软黏土层厚度等于筒结构入土深度(b=6 m)时,桩-筒复合基础的竖向极限承载力降低了12.86％,水平极限承载力降低了46.55％,抗弯极限承载力降低了34.86％;桩-筒复合基础的初始刚度kinit随着上覆软黏土层厚度的增加而减小.海上风电桩-筒复合基础的设计应充分考虑上覆软黏土层对承载特性的影响.
Keyword ：
上覆软黏土层 上覆软黏土层 桩-筒复合基础 桩-筒复合基础 降低率 降低率 海上风机 海上风机 荷载分担比 荷载分担比 初始刚度 初始刚度
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| GB/T 7714 | 孙艳国 , 许成顺 , 杜修力 et al. 上覆软黏土层对桩-筒复合基础承载性能的影响 [J]. | 哈尔滨工业大学学报 , 2023 , 55 (2) : 108-116 . |
| MLA | 孙艳国 et al. "上覆软黏土层对桩-筒复合基础承载性能的影响" . | 哈尔滨工业大学学报 55 . 2 (2023) : 108-116 . |
| APA | 孙艳国 , 许成顺 , 杜修力 , 豆鹏飞 , 王丕光 , 孙毅龙 . 上覆软黏土层对桩-筒复合基础承载性能的影响 . | 哈尔滨工业大学学报 , 2023 , 55 (2) , 108-116 . |
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Abstract ：
Vortex-induced vibrations (VIVs) of a top tensioned riser (TTR) subjected to flows with spanwise varying directions have been simulated and studied in this paper. The riser is simplified as an Euler-Bernoulli beam and its dynamics is described using the finite element method with the Absolute Nodal Coordinate Formulation (ANCF). The hydrodynamic forces due to vortex shedding are modelled with wake oscillators attached to nodes along the riser. The model has been firstly used to simulate an experiment and acceptable model results have been obtained in comparison with the measurements. Then, the VIVs of the TTR under two flow conditions, one with uniform and the other with linearly sheared velocity, have been simulated. In both cases, the direction of the flow varies linearly along the riser. Simulation results have shown different response characteristics at small and high flow velocities with respect to the frequency, amplitude and vibrating direction of the riser. In general, at a small flow velocity where the response of the riser is dominated by the standing wave, the variation in the flow direction has a major influence on the VIV of the riser. However, when the travelling wave is predominant at a high flow velocity, the effect of the spanwise varying flow direction is insignificant. The energy transfer between the structure and flow has been studied to reveal the possible mechanism that leads to these differences in the responses of the riser at small and high flow velocities. The results of the present paper suggest that the engineering simplification of ignoring the influence of flow direction variation on VIV may only be applicable at high flow velocities when the response of the riser is dominated by the travelling wave.
Keyword ：
Multi-directional flow Multi-directional flow Vortex-induced vibration Vortex-induced vibration Riser Riser Wake oscillator model Wake oscillator model Fluid-structure interaction Fluid-structure interaction
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| GB/T 7714 | Qu, Yang , Wang, Piguang , Fu, Shixiao et al. Vortex-induced vibrations of a top tensioned riser subjected to flows with spanwise varying directions [J]. | INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES , 2023 , 242 . |
| MLA | Qu, Yang et al. "Vortex-induced vibrations of a top tensioned riser subjected to flows with spanwise varying directions" . | INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 242 (2023) . |
| APA | Qu, Yang , Wang, Piguang , Fu, Shixiao , Zhao, Mi . Vortex-induced vibrations of a top tensioned riser subjected to flows with spanwise varying directions . | INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES , 2023 , 242 . |
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Abstract ：
In marine environment, the monopile offshore wind turbines (MOWTs) are subjected to long-term horizontal cyclic loads caused by wind, waves and currents, which will lead to the stiffness degradation and plastic cumulative deformation of clays. The decrease of clays bearing capacity caused by long-term cyclic degradation effect is a threat to the safe use of MOWTs in earthquake-prone countries (such as some countries in the circumPacific seismic belt). A three-dimensional finite element model is established to research the seismic response analysis of MOWT in clays considering the long-term cyclic degradation effect. The cumulative deformation of pile-soil system after long-term cycle are obtained by adopting the stiffness degradation of clays through the USDFLD subroutine. On this basis, the dynamic response analysis of MOWT system under the combined action of seismic and environmental loads is carried out. The influence of long-term horizontal cyclic load number, longterm horizontal cyclic load amplitude, seismic intensity, soil strength, environmental loads and cyclic degradation parameter on the dynamic response of MOWT is analyzed. In the seismic design of MOWTs, the effects of long-term degradation and random wind, waves and other environmental loads should be considered.
Keyword ：
Offshore wind turbine Offshore wind turbine Monopile Monopile Clays Clays Long -term cyclic loading Long -term cyclic loading Stiffness degradation Stiffness degradation Seismic response Seismic response
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| GB/T 7714 | Zhang, Xiao-ling , Li, Yun-qi , Cheng, Xing-lei et al. Seismic responses analysis of monopile offshore wind turbines in clays considering the long-term cyclic degradation effect [J]. | OCEAN ENGINEERING , 2023 , 285 . |
| MLA | Zhang, Xiao-ling et al. "Seismic responses analysis of monopile offshore wind turbines in clays considering the long-term cyclic degradation effect" . | OCEAN ENGINEERING 285 (2023) . |
| APA | Zhang, Xiao-ling , Li, Yun-qi , Cheng, Xing-lei , Wang, Pi-guang , Du, Xiu-li . Seismic responses analysis of monopile offshore wind turbines in clays considering the long-term cyclic degradation effect . | OCEAN ENGINEERING , 2023 , 285 . |
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Abstract ：
An analytical solution is developed to investigate the horizontal SV wave responses of end -bearing pile considering shear deformation of Timoshenko beam and soil free-field shear stress. Firstly, the beam used is a Timoshenko beam that is more in line with the ac-tual engineering project, in which taken into account the additional deflection caused by the bending and shear deformation of the pile. Meanwhile, the conditional transformation method is used to transform the coupled equation controlled by the two independent vari-ables of displacement and rotation angle in the beam model into the decoupled governing equation. Then, the impedance of the soil to the pile under horizontal SV wave is obtained based on the fixed bottom and free top boundaries of the soil, and the continuous bound-ary conditions of the pile-soil interface. Furthermore, the closed solution of the problem is obtained according to the relationship of the governing equation of Timoshenko beam, the interaction between pile and soil, and the fixed bottom and free top boundaries of the end -bearing pile. In addition, the free vibration and forced vibration of the present solution are compared with the commercial finite element software ABAQUS and the existing analytical solutions of Euler beam to verify the rationality of the present analytical solution. Finally, the influence of soil free-field shear stress and pile shear deformation are emphatically analyzed. The results have certain guiding significance for engineering structure design.(c) 2023 Elsevier Inc. All rights reserved.
Keyword ：
Horizontal SV wave Horizontal SV wave Analytical solution Analytical solution Timoshenko beam-soil interaction Timoshenko beam-soil interaction Soil free-field shear stress Soil free-field shear stress Shear deformation Shear deformation
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| GB/T 7714 | Huang, Yiming , Zhao, Mi , Wang, Piguang et al. Analytical solution of horizontal SV wave response considering pile shear deformation and soil free-field shear stress [J]. | APPLIED MATHEMATICAL MODELLING , 2023 , 119 : 295-315 . |
| MLA | Huang, Yiming et al. "Analytical solution of horizontal SV wave response considering pile shear deformation and soil free-field shear stress" . | APPLIED MATHEMATICAL MODELLING 119 (2023) : 295-315 . |
| APA | Huang, Yiming , Zhao, Mi , Wang, Piguang , Xu, Haibin , Du, Xiuli . Analytical solution of horizontal SV wave response considering pile shear deformation and soil free-field shear stress . | APPLIED MATHEMATICAL MODELLING , 2023 , 119 , 295-315 . |
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