Results 31 to 40 of about 157,311 (159)
Thrust distribution of marine power system based on improved SHADE algorithm
Zhongguo Jianchuan Yanjiu, 2020 [Objectives] To solve the issue of thrust loss caused by the interaction between the ship thrusters and the excessive power fluctuation in the power system, an improved A success-history adaptive differential evolution(SHADE)algorithm is proposed ...
ZHU Yuwen, XIAO Jianmei, WANG Xihuai
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Analysis of Energy Storage Implementation on Dynamically Positioned Vessels
Energies, 2019 Blackout prevention on dynamically positioned vessels during closed bus bar operation, which allows more efficient and eco-friendly operation of main diesel generators, is the subject of numerous studies. Developed solutions rely mostly on the ability of
Aleksandar Cuculić +3 more
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Journal of Marine Science and Engineering, 2020 Various operations at sea, such as maintaining a constant ship position and direction, require a complex control system. Under such conditions, the ship needs an efficient positioning technique.
Denis Selimović +3 more
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Complete positivity and dissipative factorized dynamics [PDF]
Journal of Physics A: Mathematical and General, 2002 We show that any Hermiticity and trace preserving continuous semigroup gamma_t in d dimensions is completely positive if and only if the semigroup gamma_t otimes gamma_t is positivity preserving.
BENATTI, FABIO +2 more
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A Deep Learning Method for Short-Term Dynamic Positioning Load Forecasting in Maritime Microgrids
Applied Sciences, 2020 The dynamic positioning (DP) system is a progressive technology, which is used in marine vessels and maritime structures. To keep the ship position from displacement in operation mode, its thrusters are used automatically to control and stabilize the ...
Mojtaba Mehrzadi +8 more
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Dynamic Positive Equilibrium Problem [PDF]
SSRN Electronic Journal, 2001 The Dynamic Positive Equilibrium Problem (DPEP) is a methodology for dealing with time series about economic agents' decisions, regardless of the amount of available information. The approach is articulated in three phases, as in the static counterpart Symmetric Positive Equilibrium Problem (SPEP), with the variant that it must be preceded by the ...
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Intelligent control algorithm for ship dynamic positioning
Archives of Control Sciences, 2014 Ship motion in the sea is a complex nonlinear kinematics. The hydrodynamic coefficients of ship model are very difficult to accurately determine. Establishing accurate mathematical model of ship motion is difficult because of changing random factors in ...
Meng Wang +3 more
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Fractional Order Dynamic Positioning Controller [PDF]
TransNav, 2015 Improving the performance of Dynamic Positioning System in such applications as station keeping, position mooring and slow speed references tracking requires improving the position and heading control precision.
Anna Witkowska
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Dynamic Positioning With Model Predictive Control [PDF]
IEEE Transactions on Control Systems Technology, 2016 Marine vessels with dynamic positioning (DP) capability are typically equipped with sufficient number of thrusters to make them overactuated and with satellite navigation and other sensors to determine their position, heading, and velocity. An automatic control system is tasked with coordinating the thrusters to move the vessel in any desired direction
Aleksander Veksler +3 more
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DP CHALLENGES IN ANA PLATFORM JACKET INSTALLATION
Brodogradnja, 2022 Installation of jacket platforms requires simultaneous and combined operations of multiple assets. Once the whole process has to be planned, it is necessary to predict in a fast and reliable way the possible weather limitations that may occur during the ...
Kimon Ardavanis +2 more
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