... asia government riser united states government north america government upstream oil & gas sludge height platform oscillation period rotational stiffness flexible joint lower flexible joint subsea wellhead completion installation and operations china government wave period...

... modeling & simulation deformation shock wave load contribution reservoir simulation stiffness coupling surface flow-solid coupling surface united states government shock wave pressure-resistant shell pressure-resistant shell spring load transfer law contained water explosion...

... rectangular plate stiffness characteristic mode sequence finite element method china government frequency calculation result mode shape different position modeling & simulation boundary condition spring stiffness rectangular thin plate transverse vibration characteristic asia...

... a hybrid approach in that the equation of motion consists of (1) lumped inertia and hydrostatic stiffness matrices, (2) Finite Element (FE)-based structural stiffness, and (3) multi-body-based added inertia and radiation damping matrices and the exciting force vector. To remove the inconsistency...

... ABSTRACT Based on Bloch's theorem, the governing equations of an acoustic metamaterial lattice with negative stiffness elements are established by the harmonic method in this article. The dispersion relation of the acoustic metamaterial lattice with negative stiffness elements is derived...

... ABSTRACT The current study focuses on the application of the nonlinear negative stiffness mechanism to a Salter's duck, which is a well-known wave energy conversion (WEC) device known for its efficiency of 90% in 2D regular waves. Despite the proven efficiency of WEC devices, they face...

... artificial intelligence decay test stiffness lsqcurvefit function oscillation period ascertain hydrodynamic characteristic wave energy converter ABSTRACT Free decay tests are less onerous to carry out compared to experiments that include waves. These tests can also shed light on hydrodynamic...

... aero-hydro-servo-elastic simulation in time domain. The code is modified to enable ACS implementation and ease of communication between the controller and OpenFAST. After validating the model, an open-loop controller is designed to allow multiple stiffness and damping entries targeting first-order wave...

... and stiffness are presented in this paper. INTRODUCTION Polyester ropes have been used for many years in long term mooring of offshore installations, typically in deep waters with taut mooring lines. A particular challenge has been the increase in line length, referred to as permanent stretch, following...

... brazil government technology conference stiffness fatigue life riser fatigue damage unfactored fatigue life upstream oil & gas base case thickness upset-end pipe trench onepetro catenary riser tdz steel catenary riser offshore technology conference top connection fpso...

... and bending loads, and the solution is explicitly expressed using helix coil parameters. upstream oil & gas china government pitch length analytical method united states government europe government equation torsion helix coil stiffness curve length asia government helix flexible pipe...

... contradictory results with no coherent agreement on the beneficial or detrimental effect of the trench on fatigue life. The current study has been conducted to resolve existing challenges by proposing a reliable methodology by defining an equivalent stiffness to generate a consistent trench profile entirely...

...-section contact force stiffness cross section analysis social responsibility cable helical component configuration axial strain sustainability curvature cross section history dynamic cable geir skeie wind energy deformation complex cross-section proceedings expression evaluation...

... piping simulation piping design asia government offshore pipeline modal frequency upstream oil & gas europe government spool midstream oil & gas stiffness lift force slug force time history hybrid method slug flow force time history lift coefficient fiv analysis spool...

... velocity, model geometry, and system stiffness. Here we employ Physics-informed Neural Network (PINN) that embeds the physical equation to learn the VIV response under different stiffness. Several sets of VIV response data by adjusting the structural stiffness were used to train the model, and the learned...

.... container motion response envelope subfigure slideable container frequency numerical result irregular wave exciting force nonlinear europe government natural frequency stiffness equation time sery united kingdom government wave elevation fish cage upright circular container timokha...

... stiffness at the same time, and stiffness can be varied lengthwise. Both head wave and oblique wave are adopted in irregular wave tests. High-frequency wave loads, which have a significant effect on the springing phenomenon, are found in both head wave and oblique wave test conditions through frequency...

... wave-induced vertical and horizontal forces on coastal bridges by laboratory experiments as well as numerical simulations. upstream oil & gas bridge structural response ground transportation solitary wave load stiffness girder bridge solitary wave force deformation bridge deck tank...

... fiber particle upstream oil & gas model-ii fu model dem stiffness wave period filter unit armor model Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022 by the International Society of Offshore...

... into consideration. The ultimate strength characteristics of laser-welded web-core sandwich plates, especially under transverse compression, are investigated in this study, and the influence of lateral pressure is taken into account. Besides, the effect of laser weld rotation stiffness on the ultimate strength...