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Showing 1 to 12 of 12 for “"Hydrodynamic Loads"”.
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Computation of nonlinear hydrodynamic loads on floating wind turbines using fluid-impulse theory
… installed on offshore platforms and the study of hydrodynamic loads on these offshore platforms becomes a critical issue for the design of offshore wind turbine systems. A versatile and efficient hydrodynamics module was developed to evaluate the linear and nonlinear loads on floating wind …
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An Analysis on Hydrodynamic Loads for Surface-Piercing Propellers Using Computational Fluid Dynamics
… Dynamics has had problems accurately solving the hydrodynamic loads for an SPP as recently as a few years ago. Accurately predicting these loads is of great importance because it will allow future simulations to add more effects such as cavitation, shaft inclination effects, multiple propellers, …
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Frequency-domain modelling of floating wind turbines
… linearised models of the structural dynamics, hydrodynamics, aerodynamics and control system dynamics are brought together to find the overall response of the floating wind turbine to harmonic wind and wave loading. Initially, a nonlinear flexible multibody dynamics code is developed and …
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Comportamento hidrodinâmico de quebra-mares flutuantes
… under regular wave conditions. To solve the hydrodynamic problem one distributes sources on the body contour and then formulates an integral equation which is solved numerically. Our goal is to obtain the most important parameters in the analysis of a wavebreaker, that are the transmission …
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Fracture of aluminum naval structures
… failure of naval vessels due to extreme loads such as underwater or air explosion, high velocity impact (torpedoes), or hydrodynamic loads (high speed vessels) is primarily caused by fracture. Traditionally, naval structures have been designed to resist yielding, buckling and fatigue, but …
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A numerical study on the effect of bow flare angle on green water loading on FPSO
… bow flare angle above the free surface on the hydrodynamic loads associated with the green water phenomenon.;When designing the bow flare angle of the FPSO considering the influence of the green water, it is very important to understand the amount of the green water and the impact load on the …
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Slamming of High Speed Craft: A Parametric Study of Severe Cases
… in waves. This allowed a deeper study of the hydrodynamic loads that occur during slamming. A planing hull model was subjected to controlled motions in the vertical plane to replicate the types of slamming motions that a vessel may experience in the ocean. The slamming events investigated were …
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Load measurement of in-service marine structures to influence their design.
Current methods to predict hydrodynamic loads rely either on oversimplified and semiempirical methods or the use of numerical simulation and analysis techniques such as Finite Element Analysis (FEA) or Boundary Element Analysis (BEA). These methods are conservative which results in the over-design …
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A higher-order method for large-amplitude simulations of bodies in waves
… is separated from the discretization of the hydrodynamic solution. Traditional formulations of the wave-body problem assume small-amplitude waves and body motions, and perturbation expansion about the mean position of the body and free surface leads to a completely linearized system. In the …
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Design of paired column semisubmersible hull
… ocean depths and support systems, series of hydrodynamic models were developed in ANSYS AQWA with weather conditions as recommended by API, DNV, and ABS. The AQWA model was validated with results recorded by Imetrum system from the wave tank experimental test. The wave forces and moments were …
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An Experimental Study of the Fluid- Structure Interactions of Water Entry of Compliant Structures
… with different flexural rigidities. Kinematics, hydrodynamics, spray root propagation, and structural response of the model are measured during the experiments. Results are interpreted to evaluate the effect of flexural rigidity on the slamming characteristics. The comparison between the rigid …
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Computational fluid dynamics modelling of pipeline on-bottom stability.
… are subjected to wave and steady current loads which cause pipeline stability problems. Current knowledge and understanding on the pipeline on-bottom stability is based on the research programmes from the 1980s such as the Pipeline Stability Design Project (PIPESTAB) and American Gas …