Results 11 to 20 of about 3,098 (253)
Simulation analysis of multi-mode thrust allocation strategy based on genetic algorithm
Zhongguo Jianchuan Yanjiu, 2020 [Objectives] In order to improve the positioning ability of the semi-submersible platforms under different sea conditions,three optimal thrust allocation modes based on genetic algorithm were proposed for their dynamic positioning system.[Methods] By ...
ZHAO Wei, LIU Huanwei
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ROBOMECH Journal, 2021 Long robotic arms are useful for many applications such as nuclear plant decommissioning, inspection, and firefighting. A major problem for designing and operating long robotic arms is that even small end effector reaction forces and arm gravity can ...
Siyi Pan, Gen Endo
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Thrust Allocation With Dynamic Power Consumption Modulation for Diesel-Electric Ships [PDF]
IEEE Transactions on Control Systems Technology, 2015 Modern ships and offshore units built for dynamic positioning (DP) are often powered by an electric power plant consisting of two or more diesel-electric generators. Actuation in any desired direction is achieved by placing electrical thrusters at suitable points on the hull. Usually, such ships also have other large electrical loads. Operations in the
Aleksander Veksler +3 more
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Dynamic Positioning Capability Assessment Based on Optimal Thrust Allocation
Polish Maritime Research, 2023 The article presents an efficient method of optimal thrust allocation over the actuators in a dynamically positioned ship, according to the DNV-ST-0111 standard, Level 1.
Piekło Agnieszka +2 more
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Energy Savings by Optimization of Thrusters Allocation during Complex Ship Manoeuvres
Energies, 2021 The International Maritime Organization adopted a strategy to reduce the total annual GHG emissions from international shipping by at least 50% by 2050, compared to 2008 levels.
Jarosław Artyszuk, Paweł Zalewski
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Energies, 2018 This research, a new thrust-allocation algorithm based on penalty programming is developed to minimize the fuel consumption of offshore vessels/platforms with dynamic positioning system.
Se Won Kim, Moo Hyun Kim
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Fault-Tolerant Thrust Allocation with Thruster Dynamics for a Twin-Waterjet Propelled Vessel
Journal of Marine Science and Engineering, 2022 The availability of the propulsion system is of primary importance to ensure safe and stable operations of marine crafts, both during transit and station keeping. Diminished propulsion efficiency could impair the ability of a vessel to maintain speed and
Zijing Xu, Roberto Galeazzi, Jingqi Yuan
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A Unified Approach for Underwater Homing and Docking of over-Actuated AUV
Journal of Marine Science and Engineering, 2021 During the implementation of time-consuming tasks such as underwater observation or detection, AUV has to face a difficult and urgent problem that its working duration is greatly shortened by the limited energy stored in the battery device.
Mingjiu Zuo +3 more
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Design and Verification of Deep Submergence Rescue Vehicle Motion Control System
Sensors, 2023 A six degree-of-freedom (DOF) motion control system for docking with a deep submergence rescue vehicle (DSRV) test platform was the focus of this study.
Chunmeng Jiang +7 more
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Journal of Marine Science and Engineering, 2023 The composition characteristics and working principle of the hydraulic rotary system of the azimuth thruster were analyzed. The mathematical model of the rotary dynamic system of the pump-controlled hydraulic motor driving the gear reduction mechanism ...
Ruiqi Liu +3 more
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