Journal of Offshore Mechanics and Arctic Engineering: Recent submissions
Now showing items 721-740 of 2185
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An Analytical Treatment of Buckling and Instability of Tensile Armors in Flexible Pipes
(The American Society of Mechanical Engineers (ASME), 2017)The present paper addresses aspects related to local buckling and instability of tensile armors in flexible pipes. Analytical models for evaluating the tensile armor buckling capacity in both transverse (radial and lateral) ... -
Finite Element Analysis of the Ultimate Strength of Aluminum-Stiffened Panels With Fixed and Floating Transverse Frames
(The American Society of Mechanical Engineers (ASME), 2017)The aim of this study was to analyze the ultimate strength of stiffened aluminum panels by the nonlinear finite element method. A new type of stiffened aluminum alloy panel has been designed, which has fixed longitudinal ... -
Study on the Sloshing of Nickel Ore Slurries With Three Different Moisture Contents
(The American Society of Mechanical Engineers (ASME), 2017)A combination of the moisture content, dynamic energy produced by the waves and the vessel engines along with the characteristics of the bulk cargo itself may lead the mixture to liquefy. When the liquefaction of the ... -
Investigation Into the Performance of a Dual-Layer Thin-Film Organic Coating During Accelerated Low-Temperature Offshore Testing
(The American Society of Mechanical Engineers (ASME), 2017)The application of thin-film coatings is a method to protect armatures, accessories, and control elements on offshore facilities against corrosion and mechanical damages. The performance of a dual-layer thin-film (30 μm) ... -
On the Flexural Failure of Thick Ice Against Sloping Structures
(The American Society of Mechanical Engineers (ASME), 2017)This paper investigates the breaking load of ice sheets up to 6 m thick, against a sloping structure. The reference model by Croasdale, which the design code is based on, neglects the edge moment arising from the loading ... -
Cross-Flow Vortex-Induced Vibration Simulation of Flexible Risers Employing Structural Systems of Different Nonlinearities With a Wake Oscillator
(The American Society of Mechanical Engineers (ASME), 2017)To achieve a reliable structural model for vortex-induced vibration (VIV) the prediction of flexible risers, this paper employs structural systems with different geometrical nonlinearities (including a linear structure, a ... -
Analysis of Impact Loads on a Self-Elevating Unit During Jacking Operation
(The American Society of Mechanical Engineers (ASME), 2017)A method is presented that enables the analysis of weather window assessments for the installation and retrieval phases of a self-elevating unit (SEU). The method takes site-specific parameters, defined as soil type and ... -
Study of Water Impact and Entry of a Free Falling Wedge Using Computational Fluid Dynamics Simulations
(The American Society of Mechanical Engineers (ASME), 2017)Many offshore constructions and operations involve water impact problems such as water slamming onto a structure or free fall of objects with subsequent water entry and emergence. Wave slamming on semisubmersibles, vertical ... -
Phase Angles of the Vibrations and Hydrodynamic Forces of the Flexible Risers Undergoing Vortex-Induced Vibration
(The American Society of Mechanical Engineers (ASME), 2017)This paper investigates the phase angles of the vibrations and hydrodynamic forces by the model testing of a flexible riser's vortex-induced vibration (VIV) under uniform flow. The VIV displacement of the riser is derived ... -
Model Test and Numerical Analysis of a Multi-Pile Offshore Wind Turbine Under Seismic, Wind, Wave, and Current Loads
(The American Society of Mechanical Engineers (ASME), 2017)Offshore wind turbines (OWTs) might be subjected to seismic loads with different peak accelerations during operation in the actively seismic regions. The earthquakes might be a potential risk for the OWTs due to its ... -
Criticality Analysis for Maintenance Purposes of Platform Supply Vessels in Remote Areas
(The American Society of Mechanical Engineers (ASME), 2017)The oil and gas industry is pushing toward new unexplored remote areas, potentially rich in resources but with limited industry presence, infrastructure, and emergency preparedness. Maintenance support is very important ... -
An Empirical Procedure for Fatigue Damage Estimation in Instrumented Risers
(The American Society of Mechanical Engineers (ASME), 2017)In order to assess the effects of vortex-induced vibration (VIV) and to ensure riser integrity, field monitoring campaigns are often conducted wherein the riser response is recorded by a few data sensors distributed along ... -
Parameters Affecting the Local Buckling Response of High Strength Linepipe
(The American Society of Mechanical Engineers (ASME), 2017)The local buckling response and post-buckling mechanical performance of high strength linepipe subject to combined loading state was evaluated using the finite element (FE) simulator abaqus/standard v6.12. The constitutive ... -
Prediction of Turbulent Flow Around a Square Cylinder With Rounded Corners
(The American Society of Mechanical Engineers (ASME), 2017)Predictions are reported of the two-dimensional turbulent flow around a square cylinder with rounded corners at high Reynolds numbers. The effects of rounded corners have proved difficult to predict with conventional ... -
Influence of Impact Location on the Plastic Response and Failure of Rectangular Cross Section Tubes Struck Transversely by a Hemispherical Indenter1
(The American Society of Mechanical Engineers (ASME), 2017)Drop weight impact tests and numerical simulations have been performed to examine the plastic behavior and failure of clamped rectangular cross section tubes subjected to transverse loads. The selected indenter is a ... -
Optimal Arc Welding Process Parameter Combination Design and Metallographic Examination for SDSS Butt Welds
(The American Society of Mechanical Engineers (ASME), 2017)Although novel techniques and high performance material open the way for generation of high-performance welded joints, the welding operations are inherently quite complex and expensive. This has been the case, especially ... -
Velocity-Dependent Soil Resistance in Finite Element Analysis of Pipeline Walking
(The American Society of Mechanical Engineers (ASME), 2017)Soil resistance to pipeline axial displacement plays a key role in the ratcheting process known as “pipeline walking.” Still, it is not yet fully understood. New frameworks to address the different geotechnical aspects ... -
Numerical Study on the Effect of Tandem Spacing on Flow-Induced Motions of Two Cylinders With Passive Turbulence Control
(The American Society of Mechanical Engineers (ASME), 2017)The effect of tandem spacing on the flow-induced motions (FIM) of two circular cylinders with passive turbulence control is investigated using two-dimensional (2D) unsteady Reynolds-averaged Navier–Stokes equations with ... -
New Methodology for the Determination of the Vertical Center of Gravity of In-service Semisubmersibles: Experimental Assessment
(The American Society of Mechanical Engineers (ASME), 2017)Recently, the authors have proposed a new methodology for the vertical position of the center of gravity (KG) estimation of semisubmersibles at its production location. The procedure, called the Zero GM method, is based ... -
Fatigue Crack Growth at Electrical Resistance Welding Seam of API 5L X-70 Steel Line Pipe at Varied Orientations
(The American Society of Mechanical Engineers (ASME), 2017)Very few studies have been conducted concerning fatigue in steel line pipe and fewer using full-scale testing. Further, at the time of this study, no research on full-scale testing was available in open literature regarding ...