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Keywords: element method
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Proceedings Papers
The Effect of Cargo Hold Shape on the Vertical Dynamic Load Due to Dry Bulk Cargo Based on 3D DEM-FEM
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-508
... ABSTRACT The DEM (Discrete Element Method) – FEM (Finite Element Method) coupling analyses were performed using vessels with elastic bottom plate which have various aspect ratio. In the results of the analyses whose aspect ratio of the inner bottom plate is greater than 1, the arch effect...
Proceedings Papers
A High-Order Spectral Element Based Time-Domain Simulation of a Model-Scale Floating Offshore Wind Turbine
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Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-044
... to offshore engineering applications. KEY WORDS: Spectral element method; high-order numerical scheme; wave-body interactions; 1st FOWT Comparative Study; water waves; marine hydrodynamics. INTRODUCTION Over the past decades, the importance and need for sustainable, renewable, and reliable energy resources...
Proceedings Papers
Nonlinear Simulation of a Ship Traveling in Oblique Wave with High Speed
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Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-511
... ship oblique wave nonlinear simulation wave direction simulation coarse mesh interaction problem element method velocity vector acceleration potential algorithm free surface equation body surface pressure distribution derivative term roll motion ABSTRACT Harsh sea...
Proceedings Papers
Numerical Calculation of Impact Vibration and Impact Noise in Ship Cabins by ISO Tapping Machine Excitation
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Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-468
... element method equation element model flexible body passenger transportation excitation element method coefficient deformation impact noise ship cabin hammer numerical prediction model virtual modal method iso frequency Proceedings of the Thirty-third (2023) International Ocean and Polar...
Proceedings Papers
Ice Resistance Calculation of a Polar Tanker Considering Ship/ice/water Coupling Effect
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Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-296
... process, and the motion of broken ice are simulated, and the ice resistances obtained by FEM/SPH coupling method and model test are compared to verify the effectiveness of this proposed coupling method. hydraulic fracturing ice resistance coupling effect ship ice water element method coupling...
Proceedings Papers
Wave Motion in a Frozen Harbour Based on the Domain Decomposition Method
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Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-215
... subdomains. In interior harbour, the velocity potential is expanded into series of eigenfunctions, while in exterior harbour with a free surface, the velocity potential is solved by boundary element method through a modified Green function. An inner product is introduced to impose the impermeable condition...
Proceedings Papers
Direct Integration of Green's Function Method in Wave-Structure Interaction
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Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-315
... romberg quadrature method calculation time panel method water depth free surface green function algorithm engineering newman velocity potential reservoir simulation wave-structure interaction problem program fluhan software wadam element method integration method ABSTRACT...
Proceedings Papers
Numerical Investigation of Filter Unit Deformation on Rubble Mound Under Wave Action
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Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-454
..., and the fiber particles are arranged like a string wrapping the rubbles. The deformation of the model on rubble structure under wave action is computed by a combination use of two numerical models: CADMAS-SURF and Discrete Element Method (DEM). The model input parameters are optimized for reproducing...
Proceedings Papers
Mechanism and Numerical Analysis of Rock Cutting by Cutterhead
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Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-005
... ABSTRACT Cutter suction dredger is one of the most widely used dredger types in Waterway Dredging Engineering, with the advantages of strong adaptability to complex environment and high efficiency. Based on DEM (discrete element method), this paper studies the cutting efficiency of rock cutter...
Proceedings Papers
Study of the Interactions Between Ice and Offshore Wind Turbine Using Cohesive Element Method
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Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-065
... ABSTRACT Ice bending fracturing is a major failure mode for sea ice act on offshore wind turbines (OWTs) with icebreaker. The cohesive element method (CEM) is applied to simulate the bending fracturing and fragmentation accumulation of the level ice in the presented study. The elastoplastic...
Proceedings Papers
Numerical Analysis on Ship-to-Ship Hydrodynamic Interaction in Waves by Using Taylor Expansion Boundary Element Method
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Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-533
... ABSTRACT A numerical model of ship-to-ship hydrodynamic interactions was established based on the Taylor Expansion Boundary Element Method (TEBEM), and the validity and accuracy of the proposed method were verified based on the published ship model test data. And the model was used...
Proceedings Papers
Simulation of NonlinearWaves Interacting with a Heaving Body using a p-Multigrid Spectral Element Method
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Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3137
..., 2020). Focusing on creating a model with high accuracy we have chosen to employ a high-order finite element method, namely the Spectral Element Method (SEM), see e.g. Kopriva (2009) for a general overview and Xu et al. (2018) for a recent review on SEM for water waves. Besides providing high accuracy...
Proceedings Papers
Steep focused wave interaction with a fixed vertical cylinder using a boundary element method
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Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3121
... with a xed vertical cylinder using a boundary element method Tian Geng1,2 and Frederic Dias1,2 1School of Mathematics and Statistics, University College Dublin, Bel eld, Dublin 4, Ireland 2Earth Insitute, University College Dublin, Bel eld, Dublin 4, Ireland ABSTRACT To develop a global understanding...
Proceedings Papers
Numerical Investigation of Three-Dimensional Shallow-Water Sloshing
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Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3243
... for researching sloshing phenomena. In Gedikli and Erguven (2003), a Variational Boundary Element Method (VBEM) based on the Hamilton's principle was presented to investigate the effect of a rigid baffle on the natural frequencies of the sloshing in a cylindrical container. Firouz et al. (2010) developed a modal...
Proceedings Papers
Simulation of Steep Focused Wave Interaction with a Fixed Cylinder using Fully Nonlinear Potential Flow and Navier-Stokes Solvers
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Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3204
.... engineering ns-vof model free surface fnpf model wave interaction element method wave tank eatock taylor free surface elevation equation cylinder openfoam wave generation interaction simulation wave-structure interaction experimental measurement boundary condition qian numerical result...
Proceedings Papers
Comparative Study on Focusing Wave Interaction with Cylinder using QALE-FEM and qaleFOAM
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Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3196
.... The former is solved by using the Quasi Lagrangian Eulerian Finite Element Method (QALE-FEM) and the latter is solved using the OpenFOAM by the finite volume method with the volume of fluid for identifying the free surface. In this paper, one-way coupling is used in qaleFOAM. For the purpose of comparison...
Proceedings Papers
Analysis of Ice Resistance in Ice-Structure Interaction Based on The Cohesive Element Method
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Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1252
... ABSTRACT Cohesive Element Method (CEM) is based on fracture mechanics and Finite Element Method (FEM) and it can describe the generation of cracks to a certain extent through the failure of cohesive elements and has good reliability and accuracy. Based on the CEM, a cone-ice collision model...
Proceedings Papers
Cohesive Element Method for Ice Load on Conical Structures
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Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1255
... ABSTRACT Simulating ice loads accurately will provide a powerful support for the design and manufacture of polar structures. The cohesive element method is highly effective to conduct ice load numerical simulation. In this paper, ice load is simulated based on finite element method and cohesive...
Proceedings Papers
A Simulation Study on the Ice Fracture Behaviors in Ice-Lighthouse Interaction Considering Initial Defects and Change of Elastic Modulus
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Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-097
... ABSTRACT The collision of ice-lighthouse was studied with defect ice sheet model and cohesive element method. The elastic modulus of ice model affected by initial defects was also considered. Firstly, several ice bulk elements labeled as initial defects were deleted from the ice model...
Proceedings Papers
Finite Element Frequency Analysis of Bridge Pier Under the Soil-Pile Interaction
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Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-536
... phenomenon single pile finite element method soil solid element pile foundation frequency engineering natural frequency element method bridge interaction reaction force scour depth loading Finite Element Frequency Analysis of Bridge Pier under the Soil-Pile Interaction H.-T. Hu, P.-J. Chen...
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