Results 21 to 30 of about 21,038 (76)

The Coupling Effect on Torsional and Longitudinal Vibrations of Marine Propulsion Shaft System

open access: yesJournal of Eta Maritime Science, 2021
The propulsion shaft system is one of the essential parts of the ships due to its reliability and stabilization directly affecting the safety in operation.
Akile Neşe Halilbeşe   +1 more
doaj   +1 more source

Ship heading and trajectory control method based on L1-GPR

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesIntelligent ships at sea are influenced by environmental interference, and the influence of the uncertainty of model parameters leads to the problem of low ship motion control accuracy, so it is necessary to improve the resistance of the ship's
Shijie LI   +4 more
doaj   +1 more source

A neural dynamics model prediction-based adaptive control system for AUV formation control

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesThis paper seeks to provide a solution for the formation control issue that arises when autonomous underwater vehicles (AUVs) are subjected to interference from obstacles and complex ocean currents. Methods To tackle the issue of AUV hysteresis
Jiwen ZHANG   +3 more
doaj   +1 more source

Near-surface motion modeling and wave-following control of AUVs

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveTo address the covert communication requirements of autonomous underwater vehicles (AUVs), this study proposes a near-surface communication mode equipped with a foldable antenna.MethodsUtilizing strip theory to predict the wave forces of regular
Yi WANG   +3 more
doaj   +1 more source

Gemiler için Yalpa Dengeleyici Sistem Seçim Kriterleri ve Hibrit Bulanık Ahp-Topsis Uygulaması [PDF]

open access: yesJournal of Eta Maritime Science, 2018
Yalpa dengeleyici sistemler mürettebatın verimli çalışmasını sağlamak ve kargo emniyeti açısından birçok gemi türünde tercih edilmektedir. Özellikle büyük açılı yalpa hareketleri, denizde yorgunluk ve kusma gibi etkileri artıracağından gemide çalışan ...
Hakan DEMİREL
doaj   +1 more source

Risk Assessment for Transporting Ammonium Nitrate-Based Fertilizers with Bulk Carriers

open access: yesJournal of Eta Maritime Science, 2021
Population growth has enhanced the need for agricultural products. Ammonium nitrate (AN)-based fertilizers are well known to increase product yield.
Mehmet Kaptan
doaj   +1 more source

Design of AUV controller based on improved PPO algorithm

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveIn order to improve the robustness of autonomous underwater vehicle (AUV) controllers to environment modeling errors, this paper proposes a reinforcement learning control strategy that introduces contextual information and a course-learning ...
Desheng XU, Chunhui XU
doaj   +1 more source

Distributed three-dimensional affine formation maneuver control for multiple autonomous underwater vehicles

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesTo improve the ability of autonomous underwater vehicle (AUV) formations to perform tasks in complex obstacle scenarios, a distributed three-dimensional affine formation shape maneuver control method is proposed for multi-AUV formations ...
Mingqi YAO   +4 more
doaj   +1 more source

Multi-objective Path Planning for AUVs Based on Improved Whale Optimization Algorithms and Fluid Disturbance Algorithms

open access: yes水下无人系统学报
To address the challenges of low path planning efficiency for autonomous undersea vehicle(AUV) in multi-target environments, as well as the limitations of the traditional whale optimization algorithm(WOA) in terms of susceptibility to local optima and ...
Yuhong MA, Wen PANG, Daqi ZHU
doaj   +1 more source

Fixed Depth Control Strategy for Remotely Operated Vehicle Based on Improved Model Predictive Control Algorithm

open access: yes水下无人系统学报
To address the issue of poor depth control stability in remotely operated vehicles(ROVs) with cables due to external disturbances in complex marine environments, a composite control strategy based on an improved model predictive control(MPC) was proposed.
Shuo YANG   +5 more
doaj   +1 more source

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