Journal of Offshore Mechanics and Arctic Engineering: Recent submissions
Now showing items 521-540 of 2185
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Breaking Wave Interaction With a Group of Four Vertical Slender Cylinders in Two Square Arrangements
(American Society of Mechanical Engineers (ASME), 2019)The main purpose of the study is to investigate the breaking wave interaction with a group of four circular cylinders. The physical process of wave breaking involves many parameters, and an accurate numerical modeling of ... -
Analytical and Experimental Analysis of Static Friction Forces of Moving Cables Inside Curved Pipes
(The American Society of Mechanical Engineers (ASME), 2019)In-pipe robots are a powerful tool for hydrate plug removal inside ultradeepwater pipes. Most of these robots operate with the energy supplied by umbilical cables. The present work focuses on the development of a general ... -
Composite Patch Repair for Underwater Aluminum Structures
(The American Society of Mechanical Engineers (ASME), 2019)Both experimental and numerical studies were conducted to investigate the effectiveness of composite patch repair on underwater structures, especially aluminum alloy structures. Physical samples were prepared using 5XXX ... -
Basic Characteristics of the Primary Conversion of an Oscillating Water Column Type Wave Energy Converter Installed on a Wave-Dissipating Double Caisson
(The American Society of Mechanical Engineers (ASME), 2019)Several types of oscillating water column (OWC) type wave energy converters (WECs) are researched and developed in the world. They are floating types and fixed types. In case of a fixed type, wave-dissipating caissons could ... -
Wind Turbine Controller to Mitigate Structural Loads on a Floating Wind Turbine Platform
(The American Society of Mechanical Engineers (ASME), 2019)This paper summarizes the control design work that was performed to optimize the controller of a wind turbine on the WindFloat structure. The WindFloat is a semisubmersible floating platform designed to be a support structure ... -
Fatigue Analysis of a Jacket Structure to Linear and Weakly Nonlinear Random Waves
(The American Society of Mechanical Engineers (ASME), 2019)Jacket structures have been widely used in oil and gas industry and are increasingly becoming competitive as a support structure of wind turbines at different water depths. These types of structures usually fix in transition ... -
Finite Element Analysis of Flexible Pipes Under Compression: Influence of the Friction Coefficient
(The American Society of Mechanical Engineers (ASME), 2019)In order to study the compressive behavior of flexible pipes, a nonlinear finite element model was developed. This fully tridimensional model recreates a five-layer flexible pipe with two tensile armor layers, an external ... -
Application of Boundary Element Method for Determination of the Wavemaker Driving Signal
(The American Society of Mechanical Engineers (ASME), 2019)A method for the generation of steep nonlinear broad-banded wave trains having an arbitrary prescribed shape is developed. It is shown that the second-order contributions to the velocity field are negligible in deep water, ... -
Effect of Surface Wave on Development of Turbulent Boundary Layer Over a Train of Rib Roughness
(The American Society of Mechanical Engineers (ASME), 2019)In this paper, detailed experimental results are reported to study the effect of the surface wave of different frequencies on unidirectional current over the bed-mounted train of rib roughness. The model roughness used in ... -
Discussion: “Unsteady RANS Simulations of Wells Turbine Under Transient Flow Conditions” (Hu and Li, ASME J. Offshore Mech. Arct. Eng., 140(1), p. 011901)
(The American Society of Mechanical Engineers (ASME), 2019)The work by Hu and Li (2018, “Unsteady RANS Simulations of Wells Turbine Under Transient Flow Conditions,” ASME J. Offshore Mech. Arct. Eng., 140(1), p. 011901) presents the numerical simulation of a high-solidity Wells ... -
Special Issue Honoring Professor Torgeir Moan
(The American Society of Mechanical Engineers (ASME), 2019) -
Study on the Effect of Climate Change on Ship Responses Based on Nonlinear Simulations
(The American Society of Mechanical Engineers (ASME), 2019)Hull girder ultimate strength governs sagging and hogging failures, which is one of the most critical failure modes for a ship hull. The structural reliability analysis methodology has been used to develop common structural ... -
Theoretical and Applied Insights on Pistons Buckling According to DNV Regulation
(The American Society of Mechanical Engineers (ASME), 2019)Pistons are fundamental structural elements in any engineering practices such as mechanical, civil, aerospace, and offshore engineering. Their strength strongly depends on buckling load, and such information is a major ... -
Ship-to-Ship State Observer Using Sensor Fusion and the Extended Kalman Filter
(The American Society of Mechanical Engineers (ASME), 2019)In this paper, a solution for estimating the relative position and orientation between two ships in six degrees-of-freedom (6DOF) using sensor fusion and an extended Kalman filter (EKF) approach is presented. Two different ... -
Structural Safety Analyses for Offshore Platforms Under Explosion Loadings
(The American Society of Mechanical Engineers (ASME), 2019)A gas explosion in an offshore platform may result in loss of life, pollution, and critical damage to facilities. Safety critical structural elements of these facilities have to be designed to withstand high explosion ... -
Extreme Response Prediction of Steel Risers Using a Four Parameter Distribution
(The American Society of Mechanical Engineers (ASME), 2019)Short-term extreme response estimates are required in many areas of ocean and offshore engineering, such as steel risers design. As in many cases, the response in non-Gaussian, a theoretical solution, is usually not readily ... -
Investigating the Influence of Bridge Officer Experience on Ice Management Effectiveness Using a Marine Simulator Experiment
(The American Society of Mechanical Engineers (ASME), 2019)The research investigates the influence of human expertise on the effectiveness of ice management operations. The key contribution is an experimental method for investigating human factor issues in an operational setting. ... -
Simulation of Wave Interaction With a Circular Ice Floe
(The American Society of Mechanical Engineers (ASME), 2019)Global warming is inducing sea ice retreat, which is opening new shipping routes and extending the accessible area for resource exploration. This encourages an increasing research interest in sea ice behavior. With the sea ... -
Experimental Analysis on the Velocity of Oil Drops in Oil–Water Two-Phase Flows in Electrical Submersible Pump Impellers
(The American Society of Mechanical Engineers (ASME), 2019)The objective of this research is to investigate the velocity of oil drops within the impeller of an electrical submersible pump (ESP) working with oil-in-water dispersion flows at different operational conditions. An ... -
Vertical Wind Profiles in Non-Neutral Conditions: Comparison of Models and Measurements From Frøya
(The American Society of Mechanical Engineers (ASME), 2019)This paper presents an analysis of stratification-dependent mean velocity profiles measured in a Norwegian coastal wind climate, and its comparison with models available in the literature. For this purpose, we use 3 years ...