Similar Journals
|
Journal of Ocean Engineering and Marine Energy
Journal Prestige (SJR): 0.913  Citation Impact (citeScore): 2 Number of Followers: 3  Hybrid journal (It can contain Open Access articles)ISSN (Print) 2198-6444 - ISSN (Online) 2198-6452 Published by Springer-Verlag  [2468 journals]
|
- Aerodynamic and aeroelastic analyses of a split-winglet blade for
horizontal axis wind turbine-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: The horizontal axis wind turbine is a technologically advanced energy extraction device that can capture the power of wind energy, which is one of the renewable energy sources that is growing exponentially. This study focuses on analysing the performance of HAWTs for offshore wind conditions. Computational fluid dynamics is used to measure the effect of the blade tip devices, specifically split-winglets at varying wind speeds. It is concluded that adding a split-winglet to the blade increased its performance by 7% at wind speeds of 6, 8, and 10 m/s. The influence of varying the split-winglet cant angles is also investigated and found that a cant angle of 45° is optimal. The performance of the blade is decreased on increasing the cant from 45° to 60°. The study further investigated the aeroelastic effect of the blade after tip addition using the one-way FSI methodology. The aeroelasticity involves the study of the mutual interaction between the aerodynamics and structural dynamics, where structural deformation alters the airflow around the blade, and the resulting aerodynamic forces further influence the structural response, creating a continuous feedback loop. This is performed for varying wind speeds for the base blade and optimum split-winglet configuration of 45° for two material properties. The results showed that adding split-winglet to the base blade increased the maximum deformation of the blade. The study indicates that split winglet blades have the potential to enhance the aerodynamic and aeroelastic performance of HAWTs under offshore wind conditions. However, it is important to limit the deformation of the blade to prevent collisions of the blade with the tower.
PubDate: 2025-04-16
-
- Simulation of nonlinear progressive and standing waves interaction with an
array of fixed-submerged cylinders by meshless numerical wave tank-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: In this paper, a meshless numerical wave tank (MNWT) is developed to study the wave–structure interactions. The potential flow theory is used to describe the physical model of wave propagation, and boundary value problems are solved using the proposed meshless method. To reduce the condition number of the interpolation matrix, a strategy based on the variable shape parameters and stencil size is proposed. Also, an effective memory storage strategy is adapted to enhance the computing capability of the developed FORTRAN program. The influence of numerical parameters, such as shape parameter, stencil size, number of nodes in the computational domain, and time step on the numerical results, is investigated by modeling the first- and second-order Stokes waves. The established fully nonlinear MNWT is applied to simulate the wave interaction with a single cylinder, and the results are compared with available numerical results and experimental data. After confirming the validity of MNWT for the simulation of the wave–body interactions, the progressive and standing wave interactions with an array of fixed-submerged cylinders are investigated.
PubDate: 2025-04-12
-
- How do ballast water, pitch angle, and tower material impact the
optimization of a concrete semisubmersible floating offshore wind turbine'
-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: Despite significant progress in floating offshore wind turbine (FOWT) technology, there are still several challenges, including the design of a cost-effective system. Considerable research has been dedicated to optimizing the floating platform geometry, layout, dimensions, and weight over the past few years, with some focusing on semisubmersible platforms, where steel is often used for both the platform and the tower. However, concrete FOWTs may be more cost-effective and reduce carbon footprint. Other areas requiring further research include the impact of the tower material, the maximum inclination angle, and confining ballast water within dimensionally variable compartments during optimization. The study aims to address these points through a hydrostatic optimization of a novel 15 MW concrete semisubmersible FOWT using a genetic algorithm method. The results show that the platform mass reduction for pitch angles larger than $$6^{\circ }$$ is lower compared to that for angles smaller than $$6^{\circ }$$ regardless of the tower material. Moreover, confining the ballast water inside dimensionally variable compartments leads to a lower semisubmersible platform weight. Finally, an initial comparison of raw material costs shows that a concrete platform with a steel tower offers the most cost-effective solution compared to a FOWT entirely made from steel or concrete.
PubDate: 2025-04-04
-
- Site identification and power production for floating photovoltaics in The
Bahamas-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: Potential sites for floating photovoltaic (FPV) plants are identified in The Bahamas using a modified HydroLAKES database supplemented by satellite imagery and numerical wave model output. The results illustrate that across 38 inland waterbodies, creeks, and semi-enclosed coastal areas, there is a potential installed capacity and total photovoltaic power output of 3061 megawatts (MW) and ~ 6974 gigawatt hours (GWh) per year, respectively. This accounts for a tripling of the current potential installed capacity (~ 845 MW) and a quadrupling of electricity production (1930 GWh). It is possible to construct a 370 MW FPV array on a single lake within close proximity to major population centres. This array can provide an installed capacity larger than what would be required in 2030. For many waterbodies, the sizes, possible user conflicts, or status as protected areas limit their potentials for FPV arrays. FPV array migration into the nearshore can offset these disadvantages but comes at higher costs. Mild wave climates and shallow water allow for marine FPV arrays can increase power output even further. Electricity production can satisfy domestic energy needs and serve as an export product. Continued research into the socioeconomic and environmental effects of FPVs is highly encouraged to support renewable energy generation.
PubDate: 2025-04-01
-
- Identifying the optimal gap separation of national physics laboratory
(NPL) catamaran model using machine learning algorithms-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: The selection of the optimum transverse separation gap between the two demi-hulls of a catamaran plays a crucial role, alongside its design features, in reducing ship resistance. Seven machine learning algorithms are implemented to predict the residual resistance coefficient of the National Physical Laboratory (NPL) catamaran models, which are employed as the study's reference models. This study presented a comparison of these algorithms in terms of their prediction accuracy. A dataset derived from experimental results acquired from NPL models is used to train and test the algorithms. The inputs for training and testing data are selected based on feature selection, including Fn, L/∇1/3, L/B, B/T, WSA, ∇, and S/L, with the output being the residual resistance coefficient (CR). The optimum machine learning algorithm is selected based on the highest determination coefficient. Subsequently, the optimum machine learning algorithm is used with the brute force approach to calculate the residual resistance coefficient over the chosen range for each design feature across the specified speed range. Finally, by obtaining the lowest residual resistance coefficient, the optimum transverse separation gap and the optimum design features of the catamaran model are identified.
PubDate: 2025-03-29
-
- Benchmark study of the DTU OWC chamber with both two-way and one-way
absorption-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: This paper reports on a benchmark study based on small-scale (1:50) measurements of a single, oscillating water column chamber mounted sideways in a long flume. The geometry of the OWC chamber is extracted from a barge-like, attenuator-type floating concept “KNSwing” with 40 chambers targeted for deployment in the Danish part of the North Sea. In addition to traditional two-way energy extraction we also consider one-way energy extraction with passive venting and compare chamber response, pressures and total absorbed energy between the two methods. A blind study was established for the numerical modeling, with participants applying several implementations of weakly nonlinear potential flow theory and commercial Navier–Stokes solvers (CFD). Both compressible and incompressible models were used for the air phase. Potential flow calculations predict more energy absorption near the chamber resonance for one-way absorption than for two-way absorption, but the opposite is found from the experimental measurements. This outcome is mainly attributed to energy losses in the experimental passive valve system, but this conclusion must be confirmed by better experimental measurements. Modeling the one-way valve in CFD proved to be very challenging and only one team was able to provide results which were generally closer to the experiments. The study illustrates the challenges associated with both numerical and experimental analysis of OWC chambers. Air compressibility effects were not found to be important at this scale, even with the large volume of additional air used for the one-way case.
PubDate: 2025-03-24
-
- Study on the weakening of vertical bearing capacity of offshore monopile
wind turbine foundation caused by continuous piling-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: In recent years, as the development of marine resources continues to develop in deep sea areas, offshore wind turbine pile foundations have been driven to create in the direction of larger diameters and bearing capacities. As a result, during pile driving, the soil around the piles is disturbed and weakened, thus affecting the vertical bearing capacity of the piles. To investigate the weakening phenomenon of pile-soil interaction in soft clay under continuous vertical loading, a series of indoor model tests were conducted using a self-made loading device. The distribution of pile-side friction and variation of pile-top reaction force with pile displacement were obtained. The experiments verified that the exponential formula is more suitable for describing the vertical soil weakening effect. Subsequently, the exponential formula was used to correct the pile-soil vertical hyperbolic model, and a vertical pile foundation weakening model was established. The vertical pile foundation weakening model was implemented using the FRIC subroutine in ABAQUS, providing a reference for the design analysis of weakened bearing capacity caused by the piling of offshore wind turbine foundations.
PubDate: 2025-03-14
-
- Enhancing reduced-order modeling using dynamic mode decomposition for
two-phase flows through level set functions-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: This paper focuses on the issue of accuracy degradation when directly constructing a reduced-order model (ROM) using dynamic mode decomposition for a volume of fluid (VOF) field of two-phase flow simulations, and proposes a improved method that utilizes the signed distance function (SDF), also known as the level set function, with respect to the gas–liquid interface. The effectiveness of the proposed method was demonstrated by applying it to sloshing tank problems under two different conditions. The oscillation modes were observed to appear only near the interface when using the VOF field directly; however, the influence of the interface is alleviated over a larger distance, resulting in smoother oscillation and improved performance of the ROM when employing the level set function. The results show that ROM for a level set function in cases with small oscillation was shown to be effectively equivalent to that for one-dimensionalized interface. Moreover, the ROM of the level set function could reproduce the physics of this phenomenon with higher accuracy than that of the VOF fields in the cases where one dimensionalization is not possible, such as when the liquid inside the tank surges and climbs up to the ceiling.
PubDate: 2025-03-05
-
- Concentrated photovoltaics combined with multi-stage flash distillation
systems for seawater desalination-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: In the coastal areas of Indonesia, access to clean water remains a significant problem, particularly during the dry season. Therefore, despite their continuous need for energy sources, seawater desalination methods such as multi-stage flash distillation (MSF) are important for resolving the scarcity of drinking water in these regions. To address the energy requirements, the MSF system has been integrated with a photovoltaic system in which concentrated light from a parabolic concentrator is used to increase the power output. The aim of this study was to develop and evaluate the performance of an integrated concentrator photovoltaic (CPV) with water-based cooling and MSF system for seawater desalination. The system consisted of a parabolic concentrator, solar photovoltaic cell, cooling system, and heating tank. The results showed that the CPV system increased power generation by 52%, with a 5% increase in voltage and 47% increase in current compared with those of normal photovoltaic systems. However, because the CPV panel temperature increased by 25%, peaking at 89 °C, a water-based cooling system was applied, which successfully maintained the panel temperature at under 75 °C. Moreover, the use of seawater as the cooling agent also assisted the desalination process by increasing the initial temperature of the system and led to extra desalinated water output. A 1.8 kW power consumption could produce 1.35 L of desalination water per day. The integrated CPV and MSF system performed well, with the level of total dissolved solids in the distilled water being almost equal to that of clear water. This integrated system can be used to sustainably produce clean water in coastal areas.
PubDate: 2025-03-03
-
- Computational and experimental investigation of the hydrodynamics of
moonpool oscillations in large floating production storage and offloading
vessels-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: Hydrodynamic behaviour of moonpool oscillations in large FPSO (floating production storage and offloading) vessels is investigated through computational analysis and scale-model laboratory experiments. The computational analysis is carried out using the STAR-CCM + software. The scale-model experiments were carried out in (90.0 m × 4.0 m × 3.0 m) wave flume with a flap wavemaker and in (88.0 m × 3.2 m × 2.6 m) towing tank in the Ocean Engineering Department of IIT Madras. Of particular focus of the study has been on the generation of moonpool oscillations by ambient waves and ship motion and the influence of moonpool oscillations on the FPSO ship resistance. Geometrically, the moonpool is modelled as the annular gap between concentric cylinders and is located at the front of a large FPSO platform. The computational and experimental analyses are carried for a range of parameters, such as amplitude, frequency of wave motion, and forward speed. The numerical and experimental results compare reasonably well, though not quantitatively exactly, as elaborated in the paper. Several interesting flow physics, for example, the excitation of moonpool oscillations by the vortices shed at the edge of moonpool entry are revealed in the study. Flow visualisation from CFD reveals complex vortex and flow interactions resulting from the water column motions in moonpool. Experiments were conducted both with and without moonpool, and the results confirm that moonpool oscillation augments the resistance of the FPSO. Ongoing and future studies on the topic are also discussed.
PubDate: 2025-03-01
-
- Dynamic response analysis of liquefiable offshore foundation reinforced by
lattice-type cement-mixed soil countermeasure-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: Offshore foundations are crucial for supporting marine structures like wind turbines, oil platforms, and bridges. However, when constructed in areas with liquefiable soils, liquefaction often occurs when saturated soils lose strength and stiffness due to dynamic loading, such as waves, tidal action, or seismic events. This study investigates the seismic response of liquefiable offshore foundations reinforced with lattice-type cement-mixed soil countermeasure (simplified referring to as lattice walls), focusing on the effects of spacing-to-depth ratio (L/H) of lattice walls on excess pore pressure ratio, acceleration, displacement, and settlement through numerical simulations. The results demonstrate that lattice walls effectively enhance the liquefaction resistance of near-field soils, particularly in shallow layers, by suppressing pore pressure accumulation and reducing acceleration amplification. The anti-liquefaction effect diminishes with increasing depth and distance from the lattice walls. A lower L/H ratio, achieved through denser spacing or deeper embedment, significantly improves performance, with embedment depth playing a more critical role. Settlement analyses further reveal that lattice walls effectively constrain soil deformation, reduce settlement of soils enclosed by lattice walls, and enhance seismic stability. These findings provide theoretical guidance for optimizing lattice wall configurations to mitigate liquefaction risks in seismic-prone areas.
PubDate: 2025-02-17
-
- Prof. M. Cengiz Dökmeci
-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
PubDate: 2025-02-08
-
- Influence of the channel bed geometry on the discharge capacity and
resultant electricity generation of a tidal range power plant-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: The aim of the present study was to investigate the influence of channel bed geometry (i.e., width $$B$$, slope $$S$$, bottom length $$L$$, and height $$H$$ of upstream and downstream apron sections) on the discharge capacity and resultant electricity generation of a tidal range power plant. The CFD results showed that the apron width and height significantly affected the discharge capability of sluice passage, while the effects of apron slope and bottom length can be negligible. The mean discharge coefficients for $${B \mathord{\left/ {\vphantom {B {B_{t} }}} \right. \kern-0pt} {B_{t} }}$$ = 1, 3 and 5 (where $$B_{t}$$ is the sluice passage width) were 0.77, 0.71 and 0.66, respectively, while 0.79, 0.77 and 0.69 for $$H$$/$$B_{t}$$ = 0, 0.25 and 0.5, respectively, indicating significant decreases in the discharge capability with increasing $${B \mathord{\left/ {\vphantom {B {B_{t} }}} \right. \kern-0pt} {B_{t} }}$$ and $$H$$/$$B_{t}$$. From the results of 0-D modelling in the case study of the Taedong Bay barrage, the DPR Korea, it is shown that the reduction in the discharge capability of sluice passage resulted in the decrease in the electricity production. The annual power output for the Taedong barrage decreased significantly from 476.6 to 457.9 GWh with increasing $$H$$/$$B_{t}$$, showing the largest reduction of about 4.1% for the condition of $$H$$/$$B_{t}$$ = 0.5. It can be concluded that the present results will help engineers and scientists to propose an optimal shape for apron section to enhance the discharge capability of sluice passage (and the resultant power output) of tidal range power plants.
PubDate: 2025-01-18
-
- Weather-driven variations in optimum trim of a refrigerated cargo carrier:
insights from ocean crossing voyage-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: This study explores the impact of weather-driven variations on the optimum trim of a refrigerated cargo carrier during a single ocean-crossing voyage. Analysis of operational data from onboard monitoring systems shows that trim adjustments, responsive to real-time weather conditions, can yield significant fuel savings, with potential reductions of up to 4.6% in fuel consumption per distance travelled. Compared to model test results obtained in calm conditions, the findings highlight the impact of varying weather on the vessel’s performance and underscore the operational importance of adaptive trim adjustments. This research aims to fill a critical gap in the existing literature by examining trim optimization under real weather conditions. Limitations include the focus on a single vessel and voyage. However, this study provides an essential starting point for future investigations across different vessel types and voyage conditions to enhance energy efficiency in maritime operations.
PubDate: 2025-01-07
-
- Experimental investigation of TSUSUCA DOLPHIN under regular waves
-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: Offshore floating platforms are increasingly being examined for their possibilities of harvesting wave and wind energy in addition to oil and gas exploration functions. The current experimental studies are focused on the design and development of the TSUSUCA DOLPHIN. TSUSUCA is a coined word that is abbreviated as Tsunami Protection Solar Power Utilization and coastal applications. This new multi-purpose floating device can be a wave energy convertor and a tsunami barrier. A bio-inspired dolphin-shaped body is combined with a linear motion electricity generator (LMEG) that is hinged at the top of the base block. The proposed design distinguishes it from the other wave energy converters that operate in normal sea states. TSUSUCA DOLPHIN, designed for the near-shore conditions, is experimentally investigated under regular waves to compare its performance under different inputs. In a few cases considered in the study, hydropower obtained from the device recorded an efficiency of about 32% and the electrical power efficiency of LMEG is about 30.07%. The proof of concept is successfully demonstrated by the bio-inspired device’s performance. This research lays the groundwork for future developments in this area by facilitating the creation of further devices that target the use of wave energy.
PubDate: 2025-01-07
-
- Motion responses with hydrodynamic factors in designing a floating
breakwater and wave energy converter: a review-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: The increasing demand for sustainable coastal protection and renewable energy solutions has driven significant interest in developing multi-functional offshore structures. This review examines the motion responses of offshore structures, with a particular focus on hydrodynamic factors influencing the design and efficiency of floating structures and wave energy converters. By integrating these dual-purpose systems, coastal regions can benefit from enhanced shoreline protection and renewable energy generation. This comprehensive review critically examines the motion responses of offshore floating breakwaters and wave energy converters, focusing on key variables such as wave height, draft depth, and wave number. The interactions between these parameters and various factors, including wave regimes, bottom topography, and hydrodynamic conditions, are thoroughly analyzed. A study of theoretical, computational, and experimental modeling methods for offshore floating breakwaters and wave energy converters is then presented. The findings aim to guide future research and engineering practices towards more efficient and resilient offshore infrastructure, contributing to the sustainability and economic viability of coastal management strategies.
PubDate: 2025-01-05
-
- Structural optimization applied to submarine pressure hulls
-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: Submarine pressure hulls are designed in such a way that the total buoyancy is balanced by the total weight to maintain a specific desired water depth. Structural efficiency is, therefore, translated directly into a better payload and deeper operational range. This paper presents a study of the effectiveness of three optimization tools for the problem of minimizing the weight of pressure hulls: differential evolution (DE), particle swarm (PS) and simulated annealing (SA). Their convergence rate and final resulting structure were compared using an analytical model. The influence of the primary dimensions, design pressure and variations in the partial safety factors is also factored into the evaluation of the optimization tools. Once optimal structures according to different partial safety factors are attained, these are verified with finite elements analysis (FEA) models considering an initial imperfection and with hydrostatic external pressure applied using the path-following Riks method. The results of this study indicate that the DE is the most effective method for the proposed problem among the tools evaluated and that the implementation of optimization tools in early design stages could potentially reduce the weight and improve the payload of submarines.
PubDate: 2025-01-04
-
- Projections of wind and wave climate on the main routes of the
Mediterranean and Black Seas-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: Shipping is one of the key drivers of Europe’s economy. Climate change, one of the most important research issues of our century, is unfortunately affecting maritime traffic and shipping conditions. Some of the most vulnerable areas in Europe in terms of the consequences of climate change are the Mediterranean and Black Seas, which are semi-enclosed basins and wave conditions react faster to changes in wind fields. Both seas are important for Central European countries as they provide a link to the Atlantic Ocean, Asia, and Africa. Routes along these European seas have been known and used since ancient times, and in this area, we find some of the busiest shipping corridors where one-third of the world’s world shipping passes each year. This paper aims to study how the wind and wave climate will evolve in the mid-term for this region under two emission scenarios. Wind fields provided by Regional Climate Models under two Representative Concentration Pathways are used for wind climate analysis and also to force the SWAN model to simulate the sea state conditions.
PubDate: 2025-01-04
-
- An exact NtD artificial boundary condition for three-dimensional water
wave interaction with bottom-fixed bodies-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: Recently, Rim (2023a) proposed an exact artificial DtN (Dirichlet-to-Neumann) artificial boundary condition for three-dimensional water wave interaction with bottom-fixed bodies over an undulated seafloor. This paper suggests another type of artificial boundary condition, so-called Neumann-to-Dirichlet (NtD) boundary condition to solve the same problem as above. A virtual circular cylindrical surface which envelopes the bodies and undulated seafloor region is chosen as an artificial boundary by which the entire water domain is separated into an interior subregion and an exterior subregion. An exact Neumann-to-Dirichlet (NtD) map on the virtual cylindrical surface is derived analytically from a solution for the exterior subregion, which is chosen as an NtD boundary condition to focus on wave–structure interaction in the interior subregion. Based on comparison with the DtN approach in case of a rounded-rectangular cylinder, the present NtD approach is escalated to the cases of four cylinders bottom-fixed on a flat seafloor and two cylinders bottom-fixed on an undulated seafloor with a paraboloidal shoal.
PubDate: 2024-12-31
-
- Parameter correlations of multi-planar DKT-joint under axial loadings
-
Free pre-print version: Loading...Rate this result: What is this?Please help us test our new pre-print finding feature by giving the pre-print link a rating.
A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Abstract: The study investigates the correlations between parameters of multi-planar DKT-connections under both compression and tension stresses. Using ANSYS, different models were generated with varying dimensionless parameters (β, γ, τ, and θ). After running these models, the data collected was used to create potential samples. To analyze the relationships among these parameters and reduce the number of variables, the Pearson correlation coefficient, along with the hierarchical and non-hierarchical classification techniques, were employed. This approach allows for a comprehensive examination of how these parameters interact and influence each other. By applying these statistical methods, the study aims to identify key patterns and reduce complexity in datasets, ultimately enhancing the understanding of the performance parameters in DKT-connections.
PubDate: 2024-12-26
-
