Journal of Offshore Mechanics and Arctic Engineering: Recent submissions
Now showing items 941-960 of 2185
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Model Tests for a Floating Wind Turbine on Three Different Floaters
(The American Society of Mechanical Engineers (ASME), 2014)Wind energy is a promising alternate energy resource. However, the onland wind farms are limited by space, noise, and visual pollution and, therefore, many countries build wind farms near the shore. Until now, most offshore ... -
Dynamic Response of a Sphere Immersed in a Shallow Water Flow
(The American Society of Mechanical Engineers (ASME), 2014)This work analyzes the dynamic response of a sphere located close to the floor of a hydraulic channel within steady freesurface current flows. The sphere is free to move in transverse (y) and streamwise (x) directions, and ... -
Aero Hydro Elastic Simulation of a Semi Submersible Floating Wind Turbine
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents an aerohydroelastic model of a semisubmersible floating wind turbine. A specific attention is drawn to hydrodynamic modeling options and their effect on the dynamic response of the platform. The NREL ... -
Aero Elastic Control Floater Mooring Coupled Dynamic Analysis of Floating Offshore Wind Turbine in Maximum Operation and Survival Conditions
(The American Society of Mechanical Engineers (ASME), 2014)Increasing numbers of floating offshore wind turbines (FOWTs) are planned in the coming years due to their high potential in the massive generation of clean energy from ocean wind. In the present study, a numerical prediction ... -
A Review of Floating Platform Concepts for Offshore Wind Energy Generation
(The American Society of Mechanical Engineers (ASME), 2014)Literature relating to offshore wind energy generation is produced at a significant rate as research efforts are diverted to the emerging area of future clean energy. This paper presents an overview of recent research in ... -
Dynamic Analysis of a Floating Offshore Wind Turbine Under Extreme Environmental Conditions
(The American Society of Mechanical Engineers (ASME), 2014)This paper is concerned with the development of a floating offshore wind turbine (FOWT) utilizing spartype floating foundation. In order to design such a structure, it is essential to evaluate the dynamic response under ... -
Methodology for Wind/Wave Basin Testing of Floating Offshore Wind Turbines
(The American Society of Mechanical Engineers (ASME), 2014)Scalemodel wave basin testing is often employed in the development and validation of largescale offshore vessels and structures by the oil and gas, military, and marine industries. A basinmodel test requires less time, ... -
Preliminary Modeling and Analysis of a Horizontal Pressure Differential Wave Energy Converter
(The American Society of Mechanical Engineers (ASME), 2014)Wave energy converters (WECs) have been proposed that take advantage of spatially varying pressure differentials (PDs) in a wave field to drive a fluid flow. In order to accurately assess the pressure forcing on PD devices, ... -
Features of Vortex Induced Vibration in Oscillatory Flow
(The American Society of Mechanical Engineers (ASME), 2014)Vortexinduced vibration (VIV) in oscillatory flow is experimentally investigated in the ocean basin. The test flexible cylinder was forced to harmonically oscillate in various combinations of amplitude and period with ... -
Dynamic Ice Force Analysis on a Conical Structure Based on Direct Observation and Measurement
(The American Society of Mechanical Engineers (ASME), 2014)In order to study dynamic ice force induced by icestructure interaction, we adopted the most reliable method to directly measure ice force on fullscale structure. This paper mainly demonstrates the qualitative description ... -
Special Section on Offshore Wind Energy
(The American Society of Mechanical Engineers (ASME), 2014)The Ocean Renewable Energy Symposium at the 32nd International Ocean Offshore and Arctic Engineering (OMAE2012) conference held in Rio de Janeiro had a number of papers devoted to wind energy research and development. The ... -
Fully Coupled Three Dimensional Dynamic Response of a Tension Leg Platform Floating Wind Turbine in Waves and Wind
(The American Society of Mechanical Engineers (ASME), 2014)A dynamic model for a tensionleg platform (TLP) floating offshore wind turbine is proposed. The model includes threedimensional wind and wave loads and the associated structural response. The total system is formulated ... -
Some Further Studies on the Axial–Torsional Behavior of Flexible Risers
(The American Society of Mechanical Engineers (ASME), 2014)Flexible risers are complex structures composed of several concentric polymeric and steel armor layers that withstand static and dynamic loads applied by the floating production vessel and by the ocean environment. Determining ... -
Reconstruction of Extreme Events Through Numerical Simulations
(The American Society of Mechanical Engineers (ASME), 2014)In this paper, some abnormal or rogue wave events registered in the North Sea by means of the surface elevation measurements are reconstructed with the help of theoretical models for water waves and numerical simulations ... -
Study on Lateral Earth Pressure Coefficient at Rest for Frozen Soils
(The American Society of Mechanical Engineers (ASME), 2014)The lateral earth pressure coefficient at rest, K0, is an important parameter in geotechnical engineering. There have been many studies for unfrozen soils; however, this is not the case for frozen soils, which impedes ... -
Classification and Regression Trees Approach for Predicting Current Induced Scour Depth Under Pipelines
(The American Society of Mechanical Engineers (ASME), 2014)Reliable prediction of scour depth is important in engineering analysis concerned with pipeline stability. The aim of this study is to develop an accurate formula for prediction of the currentinduced scour depth under ... -
Seepage Induced Soil Failure and its Mitigation During Suction Caisson Installation in Silt
(The American Society of Mechanical Engineers (ASME), 2014)Suction caisson is an advantaged foundation option for offshore wind turbines in sandy and clayey soils. In this work, a series of model tests were conducted to investigate the installation behavior of a suction caisson ... -
The Nonlinear Roll Damping of a FPSO Hull
(The American Society of Mechanical Engineers (ASME), 2014)The shiprolling problem is a subject that has been studied for a long time. Since Froude's time (in the 19th century) to nowadays, this subject was revisited several times in order to adjust the theory to changes in ship ... -
Sediment Transport Calculation Considering Laminar and Turbulent Resistance Forces Caused by Infiltration/Exfiltration and Its Application to Tsunami Induced Local Scouring
(The American Society of Mechanical Engineers (ASME), 2014)A sediment transport calculation was proposed, which consistently considered the influence of laminar and turbulent resistance forces caused by infiltration/exfiltration. From a comparison of the nondimensional bed–load ... -
Sediment Characteristics as a Function of Variable Hydrodynamics in a Tidal Flat of the Yellow River Delta, China
(The American Society of Mechanical Engineers (ASME), 2014)The role of hydrodynamics in the secondary reworking of sediment in a tidal flat of the Yellow River delta was studied. Field hydrodynamic conditions were measured in the study area, and subsurface and surface samples at ...