... is elastically supported. Section 4 is the conclusion. THE ONE-DIMENSIONAL THEORETICAL MODEL Water-Backed Freestanding Plate Model As shown in Fig. 1, supposing an infinite freestanding plate is submerged in water and a plane underwater shock wave impinges normally on it, an approximation of total reflection...

... hummock thickness configuration correspond experiment keel fragment rubble polygon hopkin approximation porosity aquarium bedstead simulator modeling floe cavity Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June...

... ABSTRACT In the presence of external environmental perturbations and model uncertainty, this paper proposes a motion control method combining RBF neural network and terminal sliding mode, which utilizes the RBF neural network for online approximation of model uncertainty and external...

... geology pore pressure wave cycle reservoir simulation geological subdiscipline soil response approximation jeng upstream oil & gas reservoir characterization mechanism coupling model geologist reservoir geomechanics liquefaction residual pore pressure seabed liquefaction...

... ABSTRACT The problem of non-linear radiated waves generated by a submerged circular cylinder undergoing a forced heaving oscillation is studied. The Linear Potential Flow (LPF) theory approximation is used as a reference to the solution. A Computational Fluid Dynamics (CFD) commercial software...

... Abstract The article describes the morphometric particularities of first-year ice ridges, comprehensively studied in the Kara and Laptev seas. The distributions of the main morphometric characteristics of ice ridges are given, and the corresponding theoretical approximations are proposed...

... system calculation crane structure fatigue analysis offshore crane lifting system total load cycle stress range bearing upstream oil & gas load spectrum factor pedestal horizontal axis approximation crane cargo load spectrum model load cycle Load spectrum models for offshore...

... ABSTRACT This paper presents an investigation on the interaction between extreme waves and monopile support structures. A time-domain nonlinear potential flow model is developed based on the weak-scatterer approximation. On the free surface, the 4th-order Runge-Kutta scheme with an arbitrary...

... of wave breaking phenomena. upstream oil & gas approximation steepness velocity field surface elevation reservoir simulation wave breaking energy dissipation boundary energy flux cfd model deviation energy loss wave steepness fluid dynamics cfd simulation wave train bem model...

... of combing the VAWT with a floater produces an improved case. amplitude motion response hull mooring system pitch rao approximation wind energy coefficient sustainable development experimental model upstream oil & gas turbine fpso toroidal hull structure sustainability renewable...

... obtained with approximation by theoretical distribution functions. Analysis of data of sonar and tachometric surveys shows the average values of stamukha volume/mass to be more than 5 times greater than the average values of ice ridge volume/mass. Analysis of threedimensional pictures of the lower surface...

... ABSTRACT This paper is concerned about the high-frequency wave loads and induced ringing response of offshore wind turbine foundations exposed to steep waves. A time-domain nonlinear potential flow model based on the weak-scatterer approximation is developed. On the free surface, an arbitrary...

...' equation. Such an approximation process is required for several reasons: firstly, to obtain a mathematical representation that requires low computational effort and, secondly, to ease the model-based control/estimation design procedures. Recently, a new Matlab toolbox has been released to obtain...

... in searching for optimum solutions for complex design problems. For this and similar reasons, utilizing metamodels to replace the expensive numerical models is in turn becoming vital. In this article, a complex implicit-numerical simulation-based optimization problem is approximated using a machine learning...

... for a parametric approximation of this radiation force subsystem in terms of a linear time-invariant dynamical representation, making explicit use of the corresponding hydrodynamic characteristics of the device obtained from BEM solvers. By way of example, in the case of control applications, studies that consider...

... & Ghadimi (2014), Sasson et al. (2016) and Bonfiglio et al. (2017). structural fem computation equation wedge pressure distribution interface sensitivity analysis computation engineering solver time step artificial intelligence faltinsen particle hydrodynamic mesh approximation...

... simply via the classical Fourier-Kochin approach; e.g. Noblesse et al (2013a), Huang et al (2013), Zhu et al (2017). correspond noblesse expression approximation froude number cylindrical midship region marine transportation amplitude function relation hogner approximation hull...

... to computational mesh size is introduced for each approximation function of ship shape. INTRODUCTION On harbor tranquility analysis, a distribution of wave height inside a harbor is usually estimated with a numerical wave transformation model, considering wave diffraction around breakwaters and wave reflection...

... ABSTRACT For the purpose of engineering application in the design of offshore structure, an analytical approximation is presented. The solution is based on a Fourier series expansion and contains some dimensionless constants determined by regression analysis. For the regression analysis, all...

... that represents the radiation force convolution term in Cummins equation. The reason behind such an approximation is twofold: obtaining a model with less computational (effort) requirements, and easing model-based control design procedures. In this paper, a case study on the paramet- ric approximation...