Multi-objective optimal thrust allocation strategy for automatic berthing of surface ships using adaptive non-dominated sorting genetic algorithm III
J Mou, Q Zhu, Y Liu, Y Bai - Ocean Engineering, 2024 - Elsevier
The automated berthing of vessels constitutes a high-risk operation. Equip** ships with
azimuth and lateral thrusters enhances manoeuvrability, although it poses challenges in …
azimuth and lateral thrusters enhances manoeuvrability, although it poses challenges in …
Ship dynamic positioning output feedback control with position constraint considering thruster system dynamics
In order to simultaneously address the issues of ship operating area limitation, unknown
time-varying disturbances, immeasurable ship speed, unknown dynamics, and input …
time-varying disturbances, immeasurable ship speed, unknown dynamics, and input …
[HTML][HTML] Constrained control allocation for dynamic ship positioning using deep neural network
Dynamic positioning (DP) is one of the key technologies towards ship autonomy. Ships in
DP mode use thruster devices to maintain position and perform low-speed maneuvering …
DP mode use thruster devices to maintain position and perform low-speed maneuvering …
[HTML][HTML] Experimental Study on Adaptive Backstep** Synchronous following Control and Thrust Allocation for a Dynamic Positioning Vessel
C Liu, Y Zhang, M Gu, L Zhang, Y Teng… - Journal of Marine Science …, 2024 - mdpi.com
Cargo transfer vessels (CTVs) are designed to transfer cargo from a floating production
storage and offloading (FPSO) unit into conventional tankers. The dynamic positioning …
storage and offloading (FPSO) unit into conventional tankers. The dynamic positioning …
Constrained fault-tolerant thrust allocation of ship DP system based on a novel quantum-behaved squirrel search algorithm
Z Yu, J Du - Ocean Engineering, 2022 - Elsevier
The thrust allocation (TA) of ship dynamic positioning (DP) systems is to determine the
desired thrust force and direction of each thruster of a ship such that all the thrusters jointly …
desired thrust force and direction of each thruster of a ship such that all the thrusters jointly …
Optimizing fuel consumption in thrust allocation for marine dynamic positioning systems
In offshore maritime operations, automated systems capable of maintaining the vessel's
position and heading using its own propellers and thrusters to compensate exogenous …
position and heading using its own propellers and thrusters to compensate exogenous …
Robust thrust allocation algorithm considering hydrodynamic interactions and actuator physical limitations
F Arditti, H Cozijn, E Van Daalen… - Journal of Marine Science …, 2019 - Springer
The dynamic positioning (DP) system is responsible for the station kee** of vessels in
several offshore operations. The forces required by the DP system are distributed among the …
several offshore operations. The forces required by the DP system are distributed among the …
Determination of a DP operability index for an offshore vessel in early design stage
For an offshore vessel, it is common practice to evaluate the ship's operability considering
working criteria inherent to motions/accelerations in several operative conditions. However …
working criteria inherent to motions/accelerations in several operative conditions. However …
[HTML][HTML] A probabilistic approach for Dynamic Positioning capability and operability predictions
Abstract Determining Dynamic Positioning capability for an offshore vessel is mandatory to
identify the environmental forces the system can counteract, together with the operability in a …
identify the environmental forces the system can counteract, together with the operability in a …
Probabilistic operability and greenhouse gas assessment during dynamic positioning operations
A Dynamic Positioning system automatically maintains both the position and heading of a
vessel by using its thrusters in the presence of external disturbances. This goal is ensured …
vessel by using its thrusters in the presence of external disturbances. This goal is ensured …