A ship power distribution method that can be used in different speed modes

Abstract

The invention relates to a ship thrust distribution method that can be used in different speed modes, comprising the following steps: (1), establishing mathematical models for calculating the thrust of various propellers of the ship; (2), establishing mathematical models for calculating the rudder force of the ship (3), based on various propeller thrust calculation mathematical models and rudder force calculation mathematical models of the ship to establish a ship force model; (4), based on the optimal power consumption and distribution effect of various propellers to establish an optimization objective function , based on the mechanical properties of various propellers and the ship force model to establish corresponding constraint conditions; (5), use the optimization algorithm to solve the optimization objective function, and obtain the actual thrust value of each propeller. It can use the combination of two propellers and two rudders + lateral thrusters to realize the optimization of thrust distribution in low-speed and medium-high speed modes.

Description

technical field [0001] The invention belongs to the technical field of ship thrust distribution, and relates to a ship thrust distribution method, in particular to a ship power distribution method that can be used in different speed modes. Background technique [0002] With the emergence of ships of different purposes and the continuous increase in the number of ships, the ability to control the position of the ship itself during navigation has become more and more important. A ship with good dynamic positioning technology can not only complete various tasks efficiently, but also ensure that the ship is in a safe environment at any time. With the continuous advancement of science and technology, ship dynamic positioning technology has become more and more advanced. [0003] In the dynamic positioning technology, the thrust distribution system is an important part of the technology. Its function is to distribute the command force and moment calculated by the control system t...

AI Technical Summary

Problems solved by technology

[0004] At this stage, due to the limitation of ship types and uses, most researches are based on the thrust distribution optimization strategy of azimuth propellers and lateral propellers, and there are few studies on the optimization of thrust distribution methods for ships with propeller-rudder combinations and lateral propellers.

Moreover, in the existing research, for the thrust distribution method based on two propellers and two rudders, only the situation of the propeller front vehicle is used to realize the thrust distribution at medium and high speeds, and the thrust distribution in the low speed process is not realized.

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