... ABSTRACT In this research, the vertical bending moment in the mid-ship when a ship encounters nonlinear waves is investigated. To calculate the nonlinear structural response, a 3D Computational Fluid Dynamics (CFD) simulation of the ship, based on the Smoothed Particle Hydrodynamics (SPH...

... time-consuming when low probability events are sought. The key element of the proposed approach is the use of the nonlinear wave propagation model HOS-NWT, which allows for the direct and accurate reproduction of those wave episodes in experiments or with high-fidelity numerical simulations. Under...

... ABSTRACT Parametric resonance, rather than a risk, can be leveraged to broaden the response bandwidth of a wave energy converter, potentially increasing energy availability at the power take-off shaft. Using a nonlinear Froude-Krylov force model, particularly suitable for axisymmetric...

... and complex design constraints related to the nonlinear behavior of the floating systems. Consequently, the computational time is quite expensive. In this paper, surrogate models (e.g. Kriging model, ANN model, polynomial response surface model) are employed to establish the correlation between design...

... the impact of axial and lateral soil-pile interaction behaviour on the response of a marine jetty, with particular focus on soil and steel nonlinearities. Three-dimensional push-over simulations are conducted for a fixed-end marine jetty structure. The soil-pile structure interaction is considered through...

... three-wave components resonances of capillary-gravity waves in deep water systematically. Weakly nonlinear solutions and harmonic resonance solutions are numerically obtained by solving the fully nonlinear capillary-gravity water wave equations using the Galerkin's method. The changes in wave profiles...

...Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16 21, 2024 Copyright © 2024 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-78-4; ISSN 1098-6189 www.isope.org Effects of Nonlinearity...

... upstream oil & gas wave height calculation simulation marine transportation resistance oblique wave sea condition asia government irregular wave oblique irregular wave nonlinearity artificial intelligence wave steepness wave period ship wave spectrum coefficient probability...

... panel method is introduced, where nonlinear free surface boundary condition considering both the influence of steady ship wave and incident wave. In the outer domain, free surface Green's function method is used, where the free surface boundary condition is satisfied automatically. On the control...

... wave direction, we present and validate deterministic WRP algorithms, based on fast nonlinear and dispersive Lagrangian wave models, and integrate their predictions with in-the-loop hardware and a real time control system that is informed by computations with a digital twin (DT) model of the floating...

... oil & gas anchor trajectory mohr-coulomb strength theory trajectory assumption analysis step aubeny stress state anchor reservoir simulation body force seabed model nonlinearity cel method deformation shear strength anchor model grid stress distribution installation euler body...

... analysis result fatigue analysis tower platform 8-leg cpt water depth wave period nonlinearity 12-leg cpt subsea system natural period cpt stress check compliant tower platform platform south china sea foundation pile configuration use moses Compliant Piled Tower Technology and its...

... of nonlinearity on the resonant wave patterns is investigated. It is found that, if the steepness is large enough, the crestlines would curve and even split into two shorter crests. Its curvature extent is proportional to the primary waves' steepness and the propagation distance. By contrast, the nonresonant...

... of nonlinearity on steady-state resonance waves in water of finite depth is also discussed. INTRODUCTION When studying the interaction between waves, Philips (1960) first discovered the conditions under which four surface traveling waves resonate in deep water: (equation) (equation) where (equation...

... reinforced layers made of thermoplastic composite pipe (TCP) laminates and an outer HDPE cover. In this paper, numerical study considering material nonlinearities of HDPE and TCP laminate is simulated in ABAQUS. Moreover, the TCP laminate shows obvious material anisotropy because of the different...

... by the nonlinearities of the actuator, such as the input saturation, and actuator efficiency. In this paper, the anti-saturation compensator is employed to reduce the transient response caused by input saturation, and it is integrated into RMRAC. According to the application purpose of underwater vehicle...

... loads and fatigue analysis. In this paper, a 3D nonlinear hydroelasticity theory was introduced which is fit for time history simulation in irregular wave conditions. The numerical analysis method utilizes a 3D Green function method and a 2-D momentum model, which are coupled in the time domain...

... ABSTRACT In this paper, a numerical algorithm for a fully coupled simulation of a cable and a tow-body system is presented. The nodal position finite element method was applied to analyze the nonlinear cable dynamics, and 6DOF nonlinear equations of motion were utilized for describing the 3D...

... Abstract The research on ultimate strength of SWATH under combined loads is important to ensure its safety. In the present research, nonlinear finite element method is adopted to investigate progressive collapse behaviour of a SWATH model under transverse bending moment, longitudinal torsional...

... oscillatory motion artificial intelligence triantafyllou neural network national technical university heave identification upstream oil & gas approximator architecture machine learning oscillation active flow control application data series application nonlinearity amplitude flapper fin...