An iceberg forecast approach based on a statistical ocean current model
Sign Up to like & getrecommendations! Published in 2019 at "Cold Regions Science and Technology"
DOI: 10.1016/j.coldregions.2018.11.016
Abstract: Abstract This article proposes a statistical model for short-term iceberg drift forecasts by transforming the problem of forecasting the iceberg velocity into a problem of forecasting the ocean current velocity. A Vector-autoregression model is identified… read more here.
Keywords: forecast approach; iceberg forecast; ocean current; model ... See more keywords
Modeling, simulation, and equilibrium analysis of tethered coaxial dual-rotor ocean current turbines
Sign Up to like & getrecommendations! Published in 2021 at "Energy Conversion and Management"
DOI: 10.1016/j.enconman.2021.113929
Abstract: Abstract Tethered multirotor axial flow turbines have been proposed to overcome the many challenges associated with extracting ocean current energy where deep waters render seabed mounting strategies infeasible. However, flexible systems are inherently more susceptible… read more here.
Keywords: dual rotor; tethered coaxial; turbine; ocean current ... See more keywords
Neural-network estimators based fault-tolerant tracking control for AUV via ADP with rudders faults and ocean current disturbance
Sign Up to like & getrecommendations! Published in 2020 at "Neurocomputing"
DOI: 10.1016/j.neucom.2020.06.026
Abstract: Abstract This paper investigates fault-tolerant tracking control problem for autonomous underwater vehicle (AUV) with rudders faults and ocean current disturbance. The adaptive dynamic programming (ADP) method is adopted to transform the fault-tolerant tracking control problem… read more here.
Keywords: rudders faults; ocean current; control; current disturbance ... See more keywords
Moment loads acting on a blade of an ocean current turbine in shear flow
Sign Up to like & getrecommendations! Published in 2019 at "Ocean Engineering"
DOI: 10.1016/j.oceaneng.2018.12.026
Abstract: Abstract The Kuroshio flowing near Japan is one of the largest ocean currents and it is considered that this energy possibly be an important energy source for Japan. A full-scale generator with twin 40m turbine… read more here.
Keywords: moment; moment loads; turbine; shear flow ... See more keywords
Switching LOS guidance with speed allocation and vertical course control for path-following of unmanned underwater vehicles under ocean current disturbances
Sign Up to like & getrecommendations! Published in 2019 at "Ocean Engineering"
DOI: 10.1016/j.oceaneng.2019.04.021
Abstract: Abstract This paper presents an application and stability result of a modified line-of-sight (LOS) guidance law for 3-D path-following (PF) of an unmanned underactuated underwater vehicle subject to environmental disturbances. The PF problem is solved… read more here.
Keywords: speed; course; los guidance; course control ... See more keywords
Experimental and numerical analysis of a multilayer composite ocean current turbine blade
Sign Up to like & getrecommendations! Published in 2020 at "Ocean Engineering"
DOI: 10.1016/j.oceaneng.2020.106977
Abstract: Abstract Ocean environmental corrosion and mechanical load vibration introduce considerable negative effects caused by the fluid-structure-environment interaction. A new design scheme for a blade with salinity corrosion resistance and mechanical fatigue resistance is proposed, based… read more here.
Keywords: blade; multilayer composite; ocean current; current turbine ... See more keywords
The inclusion of ocean-current effects in a tidal-current model as forcing in the convection term and its application to the mesoscale fate of CO 2 seeping from the seafloor
Sign Up to like & getrecommendations! Published in 2018 at "Ocean Modelling"
DOI: 10.1016/j.ocemod.2018.01.001
Abstract: Abstract The target seas of tidal-current models are usually semi-closed bays, minimally affected by ocean currents. For these models, tidal currents are simulated in computational domains with a spatial scale of a couple hundred kilometers… read more here.
Keywords: tidal current; ocean current; current model; effects tidal ... See more keywords
Influence of surface waves on the hydrodynamic performance of a horizontal axis ocean current turbine
Sign Up to like & getrecommendations! Published in 2020 at "Renewable Energy"
DOI: 10.1016/j.renene.2020.04.127
Abstract: Abstract It is known that surface waves have significant influence on the hydrodynamic performance of ocean current turbines which locate near the water surface. In order to quantitatively analyze the wave influence and reveal the… read more here.
Keywords: turbine; ocean current; hydrodynamic performance; surface ... See more keywords
A Time-Saving Path Planning Scheme for Autonomous Underwater Vehicles With Complex Underwater Conditions
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2022.3205685
Abstract: Autonomous underwater vehicle (AUV) shows great potential in the Internet of Underwater Things (IoUT) system, in which the path planning algorithm plays a fundamental role. However, the complex underwater environment brings greater challenges to AUV… read more here.
Keywords: complex underwater; ocean current; time; path planning ... See more keywords
Fault-Tolerant Trajectory Tracking Based on Improved Chaotic Firefly Algorithm Model Prediction Control for Human-Occupied Vehicle With Ocean Current
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Systems, Man, and Cybernetics: Systems"
DOI: 10.1109/tsmc.2022.3220641
Abstract: In this article, aiming at the characteristics of model uncertainty and low-speed of human-occupied vehicle (HOV) system, a cascaded controller in ocean current environment is proposed. First, the kinematics controller is designed by improved chaotic… read more here.
Keywords: ocean current; human occupied; control; algorithm ... See more keywords
Origin of Sustained Continuous Measurements of Surface Wind and Upper-Ocean Current and Temperature on the Pacific Equator: EQUA Project
Sign Up to like & getrecommendations! Published in 2021 at "Bulletin of the American Meteorological Society"
DOI: 10.1175/bams-d-20-0314.1
Abstract: In 1976, a pilot experiment, called first Equatorial Mooring (EQUA-1), tested an innovative technique for anchoring a taut-line surface mooring at 0°, 150°W where the water depth is 4.5 km. The 36-day deployment contained a… read more here.
Keywords: equa project; upper ocean; wind upper; ocean current ... See more keywords