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

A technology of radius of gyration and sailing, which is applied in ship construction, ship propulsion, and ship components, etc., and can solve the problems of affecting the detection effect and large gyration radius

Active Publication Date: 2020-12-04
DALIAN MARITIME UNIVERSITY
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  • Application Information

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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 i...

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

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Embodiment Construction

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0052] Such as figure 1 As shown, the present embodiment provides a method for determining the minimum radius of gyration based on the sail angle of attack of a sailboat, including:

[0053] Step 101, setting the target sailboat and the parameters of the target sailboat; establishing a sailboat model of the target sailboat according to the parame...

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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 ...

Claims

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Application Information

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Owner DALIAN MARITIME UNIVERSITY
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