Method for determining minimum turning radius based on sailboat sail attack angle

Abstract

The invention discloses a method for determining a minimum turning radius based on a sailboat sail attack angle, and the method comprises the steps: building a sailboat model based on the internal relation between a sail acting force coefficient and the sail attack angle through the comprehensive consideration of sail boosting force and side thrust in combination with the parameters of a target sailboat; integrating rudder stress factors, and establishing a rudder stress model. A sailboat motion model is established by using a response type three-degree-of-freedom ship manipulation separation(MMG) method, the common influence of a sail and a rudder on the rotation performance of the sailboat is comprehensively considered, and a relative wind direction angle and a sail attack angle range capable of assisting the target sailboat to rotate are selected, so that a sail attack angle strategy for realizing the minimum rotation radius of the target sailboat is obtained, and quantitative dataare provided for virtual anchoring of the unmanned sailing ship under the condition of the minimum turning radius.

Description

technical field [0001] The invention relates to the technical field of ship navigation, in particular to a method for determining the minimum radius of gyration based on the angle of attack of the sail of a sailboat. Background technique [0002] The unmanned sailing ship is a new type of multi-purpose dynamic observation platform driven by clean ocean energy (wind energy). It is capable of remote sea operations, has the advantages of real-time data transmission, and low operating costs. The main difference between the unmanned sailing boat and the traditional unmanned boat is that it has no internal power system, and only relies on the force of the wind on the sail as the driving force for sailing. [0003] When using an unmanned sailboat for water quality detection offshore operations, it is necessary to stay at a fixed position at sea for a long enough time to obtain accurate and effective data, but the sailboat cannot stop on the working water surface, otherwise it will ...

AI Technical Summary

Problems solved by technology

At present, the virtual anchoring of unmanned sails usually adopts the maximum boost method, which only relies on turning the rudder to turn the unmanned sailing ship. The turning radius is relatively large, and it is difficult to achieve the effect of virtual anchoring in a fundamental sense. The position of the human sailboat is not fixed, which will affect the detection effect

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