Journal of Offshore Mechanics and Arctic Engineering: Recent submissions
Now showing items 301-320 of 2185
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Time-Domain Simulation of Second-Order Diffracted Forces on Marine Structures in Multidirectional Irregular Seas
(The American Society of Mechanical Engineers (ASME), 2022)A new method for the accurate discrete technique of directional spectra is proposed for the simulation of the second-order incident potential of directional seas, and a second-order time-domain analysis program is developed ... -
New Tools to Generate Realistic Ice Floe Fields for Computational Models
(The American Society of Mechanical Engineers (ASME), 2022)Global warming has extensively transformed Arctic sea ice from continuous level-ice coverage to unconsolidated ice floe fields. Whilst the ice floes have a mixture of different sizes and their locations are randomly ... -
Three-Dimensional Effects on Slamming Loads on a Free-Falling Bow-Flare Cylinder Into Calm Water
(The American Society of Mechanical Engineers (ASME), 2022)Three-dimensional effects on slamming load predictions of a ship section are investigated numerically using the unsteady incompressible Reynolds-averaged Navier–Stokes (RANS) equations and volume of fluid (VOF) method, ... -
Tribo-Erosion Performance of GFRP Composite Panels in Both Offshore and Onshore Environmental Conditions
(The American Society of Mechanical Engineers (ASME), 2022)The erosion wear due to raindrop plays a vital role in the service life of wind turbine components, especially blades. Furthermore, the rain impact angle and the environmental conditions have a major impact on erosion wear. ... -
Strouhal Number for Vortex-Induced Vibration Excitation of Long Slender Structures
(The American Society of Mechanical Engineers (ASME), 2022)A variety of contemporary test data for elastically mounted cylinders, with the freedom to oscillate under one degree-of-freedom (1DOF, i.e., cross-flow) and 2DOF (i.e., cross-flow and in-line) were evaluated and compared ... -
Heave Motion Induced Vortex-Induced Vibrations of a Full-Scale Steel Lazy Wave Riser
(The American Society of Mechanical Engineers (ASME), 2022)Deepwater steel lazy wave risers (SLWR) subject to vessel motion will be exposed to time-varying oscillatory flow, vortices could be generated and the cyclic vortex-shedding force causes the structure vibrate, such ... -
Hydrodynamic Coupling of Viscous and Nonviscous Numerical Wave Solutions Within the Open-Source Hydrodynamics Framework reef3d
(The American Society of Mechanical Engineers (ASME), 2022)A comprehensive understanding of the marine environment in the offshore area requires phase-resolved wave information. For far-field wave propagation, computational efficiency is crucial, as large spatial and temporal ... -
Representation of 3-h Offshore Short-Crested Wave Field in the Fully Nonlinear Potential Flow Model REEF3D::FNPF
(The American Society of Mechanical Engineers (ASME), 2022)Stochastic wave properties are crucial for the design of offshore structures. Short-crested seas are commonly seen at the sites of offshore structures, especially during storm events. A long time duration is required in ... -
Active Absorption of Random Waves in Wave Flume Using Artificial Neural Networks
(The American Society of Mechanical Engineers (ASME), 2022)A wave flume is primarily intended to reproduce actual sea conditions in order to provide a reliable means of testing for small-scale models. The realization of scaled tests is extremely important for the validation of a ... -
Floating Wind Turbine Model Test to Verify a moordyn Modification for Nonlinear Elastic Materials
(The American Society of Mechanical Engineers (ASME), 2022)As the floating offshore wind industry matures, it has become increasingly important for researchers to determine the next-generation materials and processes that will allow platforms to be deployed in intermediate (50–85 ... -
Experimental and Numerical Assessment on Failure Pressure of Textured Pipelines
(The American Society of Mechanical Engineers (ASME), 2022)A series of physical tests and finite element (FE) analyses are conducted to evaluate the failure of smooth (conventional) and textured (proposed concept) pipes. To do so, hydrostatic pressure tests are performed on aluminum ... -
Assessing the Impact of Climate Change on the Fatigue Life of Offshore Structures
(The American Society of Mechanical Engineers (ASME), 2022)Design life of offshore structures is in general in the 20- to 30-year range, with some cases going up to 50 years. Fatigue is one of the major design criteria for such structures. Climate change may affect the fatigue ... -
Power Enhancement of Wave Energy Converter Array via Wave Runup in Channel
(The American Society of Mechanical Engineers (ASME), 2022)When waves pass through a channel, wave elevation is observed to increase, a phenomenon known as wave runup. Attempts are made to utilize the wave runup along a channel supported on a floating platform to enhance the energy ... -
Well Trajectory Optimization With an Emphasis on Anticollision Design
(The American Society of Mechanical Engineers (ASME), 2022)Well trajectory design and optimization are essential parts in well planning before drilling. The main objective of the design is to find an optimal trajectory for efficient and safe drilling. Meanwhile, the anticollision ... -
Numerical Modeling of Ice–Seabed Interaction in Clay by Incorporation of the Strain Rate and Strain-Softening Effects
(The American Society of Mechanical Engineers (ASME), 2022)Ice gouging is one of the main threats to the safety of the subsea pipelines buried in Arctic coastal regions. Determining the best pipeline burial depth relies on free-field ice gouging analysis and obtaining the resultant ... -
Roll–Yaw Lock: Aerodynamic Motion Instabilities of Floating Offshore Wind Turbines
(The American Society of Mechanical Engineers (ASME), 2022)This article presents an investigation of a newly discovered motion instability phenomenon for floating wind turbines, first observed in numerical aero-hydro-servo-elastic simulations. The source of instability is identified ... -
LiDAR Measurements of Wind Shear Exponents and Turbulence Intensity Offshore the Northeast United States
(The American Society of Mechanical Engineers (ASME), 2022)This paper presents wind speed shear exponents and turbulence intensity (TI) measurements collected from light imaging, detection, and ranging instruments (LiDARs) measuring wind speeds from 40 m to 200 m above sea level ... -
Scattering of Water Waves by Very Large Floating Structure in the Presence of a Porous Box
(The American Society of Mechanical Engineers (ASME), 2022)We investigate the effectiveness of a porous box in attenuating the structural response of a very large floating structure (VLFS). Assuming the water depth to be finite and small amplitude water wave theory, the physical ... -
Numerical Simulations of a Freely Falling Rigid Sphere in Bounded and Unbounded Water Domains
(The American Society of Mechanical Engineers (ASME), 2022)Numerical studies were conducted on the hydrodynamics of a freely falling rigid sphere in bounded and unbounded water domains to investigate the drag coefficient, normalized velocity, pressure coefficient, and skin friction ... -
Uncertainty in Collapse Strength Prediction of Sandwich Pipelines
(The American Society of Mechanical Engineers (ASME), 2022)This paper assesses the uncertainty in the collapse strength of sandwich pipelines (SPs) under external pressure predicted by various strength models in three categories based on interlayer adhesion conditions. First, the ...