Journal of Offshore Mechanics and Arctic Engineering: Recent submissions
Now showing items 981-1000 of 2185
-
The Effect of Third Order Nonlinearities on the Statistical Distributions of Wave Heights, Crests and Troughs in Bimodal Crossing Seas
(The American Society of Mechanical Engineers (ASME), 2013)This paper investigates the effect of thirdorder nonlinearities on the statistical distributions of wave heights, crests, and troughs of waves mechanically generated in a deepwater basin and simulating two crossing systems ... -
Experimental Investigation of Tsunami Bore Forces on Vertical Walls
(The American Society of Mechanical Engineers (ASME), 2013)A series of experiments have been carried out in the large wave flume (LWF) at Oregon State University to quantify tsunami bore forces on structures. These tests included “offshore†solitary waves, with heights up to ... -
Extremes of Nonlinear Vibration: Comparing Models Based on Moments, L Moments, and Maximum Entropy
(The American Society of Mechanical Engineers (ASME), 2013)Wind and wave loads on offshore structures show nonlinear effects, which require nonGaussian statistical models. Here we critically review the behavior of various nonGaussian models. We first survey momentbased models; in ... -
The Sensitivity of Overall Collapse of Damaged Submarine Pressure Hulls to Material Strength
(The American Society of Mechanical Engineers (ASME), 2013)Budget and schedule restrictions sometimes require naval submarines to be operated with unrepaired corrosion damage to the pressure hull. It is important to understand the effects of corrosion wastage on the structural ... -
Experimental Study on the Collapse Strength of Narrow Stiffened Panels
(The American Society of Mechanical Engineers (ASME), 2013)The results of five tests on narrow stiffened panels under axial compression until collapse and beyond are presented to investigate the collapse behaviors of stiffened panels. Tension tests were used to evaluate the material ... -
An Efficient Three Dimensional FNPF Numerical Wave Tank for Large Scale Wave Basin Experiment Simulation
(The American Society of Mechanical Engineers (ASME), 2013)This paper presents a parallel implementation and validation of an accurate and efficient threedimensional computational model (3D numerical wave tank), based on fully nonlinear potential flow (FNPF) theory, and its extension ... -
Ultimate Compressive Capacity of Rectangular Plates With Partial Depth Pits
(The American Society of Mechanical Engineers (ASME), 2013)Pitting corrosion has been one of the main corrosion types of immersed ship hulls, which can bring heavy damage and even accidents to inservice ships, particularly to aged ships. The aim of the present paper was to investigate ... -
At Sea Experiment of a Hybrid Spar for Floating Offshore Wind Turbine Using 1/10 Scale Model
(The American Society of Mechanical Engineers (ASME), 2013)This study aims at development of a costeffective, floating offshore wind turbine. The prototype model considered herein is composed of (1) 2MW horizontalaxis wind turbine (HAWT) of downwind type, (2) steel monotower with ... -
Model Test of Influence of Propeller Arrangements Aboard a Four Propeller Boat
(The American Society of Mechanical Engineers (ASME), 2013)Although it is not uncommon to employ four propellers on a high speed displacement vessel, there is a lack of literature on this subject. This paper presents the propulsive performance of a fourpropeller craft and gives ... -
Effects of Sand Clay Mixtures on Scour Around Vertical Piles Due to Long Crested and Short Crested Nonlinear Random Waves
(The American Society of Mechanical Engineers (ASME), 2013)This note provides a practical stochastic method by which the effects of sandclay mixtures on the maximum equilibrium scour depth around vertical piles exposed to longcrested (2D) and shortcrested (3D) nonlinear random ... -
Hydroelasticity of Four Flexible Cylinders in Square Arrangement Subjected to Uniform Cross Flow
(The American Society of Mechanical Engineers (ASME), 2013)Groups of cylinders can be found in many engineering fields such as marine and civil applications. The behavior of the group cylinders can be very complex because it undergoes the mutual effects of adjacent cylinders ... -
A Novel Method for Generating Continuously Surfable Waves—Comparison of Predictions With Experimental Results
(The American Society of Mechanical Engineers (ASME), 2013)In this paper, a novel idea to produce continuous breaking waves is discussed, whereby a pressure source is rotated within an annular wave pool, with the inner ring of the annulus having a sloping bathymetry to induce wave ... -
Behavior of a Pontoon Supported by a Mooring Dolphin in a Tsunami (First Report)
(The American Society of Mechanical Engineers (ASME), 2013)In recent years, a number of floating facilities for the utilization of ocean space, such as a marine disaster prevention base, floating restaurant, or floating container terminal, are planned, and some of them are actually ... -
Preliminary Assessment of the Importance of Platform–Tendon Coupling in a Tension Leg Platform
(The American Society of Mechanical Engineers (ASME), 2013)This paper presents performance metrics that can be used to evaluate the response sensitivity of a tension leg platform (TLP) to its tendons. An uncoupled TLP model ignores the intrinsic dynamics and environmental loads ... -
Analysis of a Two Body Floating Wave Energy Converter With Particular Focus on the Effects of Power Take Off and Mooring Systems on Energy Capture
(The American Society of Mechanical Engineers (ASME), 2013)The present paper summarizes analyses of a twobody floating wave energy converter (WEC) to determine the mooring tension and the effect of the mooring system on energy capture. Also, the effect of the power takeoff (PTO) ... -
Study of a Floating Foundation for Wind Turbines
(The American Society of Mechanical Engineers (ASME), 2013)Offshore wind farms are currently located predominantly in shallow water as it is possible to cost effectively install bottom fixed offshore turbines. Where shallow water sites are not available, floating offshore turbines ... -
Euler–Lagrange Two Phase Model for Simulating Live Bed Scour Beneath Marine Pipelines
(The American Society of Mechanical Engineers (ASME), 2013)In this study, an Euler–Lagrange coupling twophase flow model, namely movable bed simulator (MBS)twodimensional (2D) model was employed to explore the currentinduced livebed scour beneath marine pipelines. The fluid phase ... -
Evaluation of Slug Flow Induced Flexural Loading in Pipelines Using a Surrogate Model
(The American Society of Mechanical Engineers (ASME), 2013)Slug flow induces vibration in pipelines, which may, in some cases, result in fatigue failure. This can result from dynamic stresses, induced by the deflection and bending moment in the pipe span, growing to levels above ... -
Postbuckling Analysis of Snaked Lay Pipelines Based on a New Deformation Shape
(The American Society of Mechanical Engineers (ASME), 2013)Lateral buckling must be considered in exposed HP/HT pipeline design. The snakedlay method is an effective lateral buckling control method, a new deformation shape of snakedlay pipeline is presented, and a control criterion ... -
Application of Statistical Analysis Techniques to Pipeline On Bottom Stability Analysis
(The American Society of Mechanical Engineers (ASME), 2013)Offshore pipelines are increasingly being employed to transport offshore hydrocarbons to onshore processing facilities. Pipelines laid directly on the seabed are subject to a considerable hydrodynamic loading from waves ...