Journal of Offshore Mechanics and Arctic Engineering: Recent submissions
Now showing items 421-440 of 2185
-
Structural and Hydrodynamic Aspects of Steel Lazy Wave Riser in Deepwater
(The American Society of Mechanical Engineers (ASME), 2020)Exploration of oil and gas in deep and ultra-deepwater under harsh weather condition is challenging. A steel lazy wave riser (SLWR) is considered to be a cost-effective alternative to get the gas or oil flow up to the ... -
Numerical Simulation of the Resistance and Self-Propulsion Model Tests1
(The American Society of Mechanical Engineers (ASME), 2020)The paper proposes a series of numerical investigations performed to test and demonstrate the capabilities of a Reynolds-averaged Navier–Stokes equation (RANSE) solver in the area of complex ship flow simulations. The focus ... -
K-Factor Solution for Combined Braced–Unbraced Offshore Jacket Frames
(The American Society of Mechanical Engineers (ASME), 2020)Many offshore jackets have no braces between the top of jacket and the bottom of topsides deck. This can be either due to the installation requirement and/or an effort to reduce wave loads. This kind of jacket bay is a ... -
Punch-Through Risk of Jack-Up Under the Dual Uncertainty of Structure and Foundation
(The American Society of Mechanical Engineers (ASME), 2020)The preload operation of Jack-up in complex multi-layered foundation requires an enhanced understanding of its behavior in punch-through accident and suitable safety analysis tools for the assessment of their reliability ... -
Experimental Comparison of an Annular Floating Offshore Wind Turbine Hull Against Past Model Test Data
(The American Society of Mechanical Engineers (ASME), 2020)Floating offshore wind turbine (FOWT) hull technologies are evolving rapidly with many technically viable designs. However, a commercially dominant architecture has yet to emerge. Early hull designs including semisubmersible, ... -
Force Measurements of the Flow Around Arrays of Three and Four Columns With Different Geometry Sections, Spacing Ratios, and Incidence Angles
(The American Society of Mechanical Engineers (ASME), 2020)An experimental campaign for the flow around a stationary array of three and four columns with low aspect ratio, H/L = 1.5, piercing the water free surface, was carried out in a towing tank. These numbers of columns ... -
A Framework for Offshore Load Environment Modeling1
(The American Society of Mechanical Engineers (ASME), 2020)This paper presents a novel decision analytical framework for systems modeling in the context of the risk-informed integrity management of offshore facilities. Our focus concerns the development of system models representing ... -
Development of Coupled Program fast-simdyn and Study of Non-Linear Hydrodynamics, Coupled With Negative Damping and Aerodynamics of Floating Offshore Wind Turbines
(The American Society of Mechanical Engineers (ASME), 2020)Non-linear hydrostatic and wave forces on floating structures are very important during large amplitude waves. The computer program simdyn is a blended time domain program developed by Marine Dynamics Laboratory at TAMU ... -
Computational Fluid Dynamics Investigations of Breaking Focused Wave-Induced Loads on a Monopile and the Effect of Breaker Location
(The American Society of Mechanical Engineers (ASME), 2020)The design of new offshore structures requires the calculation of the wave-induced loads. In this regard, the computational fluid dynamics (CFD) methodology has shown to be a reliable tool, in the case of breaking waves ... -
Numerical Evaluation of Ship Turning Performance in Regular and Irregular Waves
(The American Society of Mechanical Engineers (ASME), 2020)In this study, ship's maneuvering performance in waves is evaluated using numerical computation. To this end, three degrees-of-freedom (3DOF) planar motions are considered, and modular-type maneuvering model (maneuvering ... -
Numerical Analysis on Mathieu Instability of a Top-Tensioned Riser in a Dry-Tree Semisubmersible
(The American Society of Mechanical Engineers (ASME), 2020)The development of a dry-tree semisubmersible (DTS), a new type offshore hydrocarbon production system, is facing unconventional challenges in the issues of dynamic stability, structural integrity, and parametric resonance. ... -
Collapse Experiments and Reliability Analyses of Corroded Pipes for Offshore Applications
(The American Society of Mechanical Engineers (ASME), 2020)The collapse pressure of subsea pipelines containing corrosion defects is usually predicted by deterministic methods, either numerically or through empirical formulations. A simple deterministic procedure for estimating ... -
A Multi-Layer Perceptron With a Hierarchical Prior for Operating State Recognition of Ship Propulsion Systems
(The American Society of Mechanical Engineers (ASME), 2020)To define more clearly vibration-related problems of ship propulsion systems, a procedure incorporating operating state recognition into conventional vibration analysis is proposed in this paper. Emphasis is placed on ... -
A Numerical Prediction on the Transient Response of a Spar-Type Floating Offshore Wind Turbine in Freak Waves
(The American Society of Mechanical Engineers (ASME), 2020)Simulations are conducted in time domain to investigate the dynamic response of a spar-type floating offshore wind turbine (FOWT) under the freak wave scenarios. Toward this end, a coupled aero-hydro-mooring in-house ... -
Influence of Viscosity and Non-Linearities in Predicting Motions of a Wind Energy Offshore Platform in Regular Waves
(The American Society of Mechanical Engineers (ASME), 2020)Motion predictions of floating bodies in extreme waves represent a challenging problem in naval hydrodynamics. The solution of the seakeeping problem involves the study of complex non-linear wave-body interactions that ... -
Propeller Performance Penalty of Biofouling: Computational Fluid Dynamics Prediction
(The American Society of Mechanical Engineers (ASME), 2020)The negative effect of biofouling on ship resistance has been investigated since the early days of naval architecture. However, for more precise prediction of fuel consumption of ships, understanding the effect of biofouling ... -
Hydrodynamic Forces on a Cylinder With a Flexible Splitter Plate Near the Free Surface
(The American Society of Mechanical Engineers (ASME), 2020)Experiments were conducted on two splitter plates of different structural rigidities, attached to a rigid cylinder and exposed to cross-flow at different submergence depths in order to study the influence of free surface. ... -
Gravity Wave Trapping by Series of Horizontally Stratified Wave Absorbers Away From Seawall
(The American Society of Mechanical Engineers (ASME), 2020)The fluid oscillation between the rigid wall and stratified wave absorber is analyzed in the context of the linearized water wave theory. The stratified wave absorber is composed of multiple horizontal layers considering ... -
Nonlinear Span Assessment by Amplitude-Dependent Linearization
(The American Society of Mechanical Engineers (ASME), 2020)Although it has long been recognized that vortex-induced vibrations of subsea pipeline spans involve nonlinear and inelastic behavior, the current practice to assess such spans for fatigue and ultimate loading conditions ... -
A Continuing Series on the Journal's Associate Editors
(The American Society of Mechanical Engineers (ASME), 2020)In an Editorial [1] that appeared in the April 2020 issue of the journal, I noted that it is the dedication of an international team of Associate Editors, each with his or her own individual expertise in different areas, ...