A submarine motion model simplification method and device

A motion model and submarine technology, applied in character and pattern recognition, special data processing applications, instruments, etc., can solve problems such as increased workload, lack of rationality in threshold selection, and increased difficulty in data screening, achieving high accuracy and reducing Effects of Operational Difficulty and Complexity

Pending Publication Date: 2019-05-17
NO 719 RES INST CHINA SHIPBUILDING IND
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Problems solved by technology

[0004] However, the threshold method needs to manually screen the hydrodynamic coefficients. When the amount of data is relatively large, it will increase the difficulty o

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  • A submarine motion model simplification method and device
  • A submarine motion model simplification method and device
  • A submarine motion model simplification method and device

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Embodiment Construction

[0023] 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.

[0024] In order to overcome the problems existing in the prior art, an embodiment of the present invention provides a method for simplifying the motion model of a submarine. The inventive idea is that the ability of the submarine to respond to the operation of the operator in motion is called the maneuverability of the submarine. When the submarin...

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Abstract

The embodiment of the invention provides a submarine motion model simplification method and device. The method comprises the steps of constructing a six-degree-of-freedom motion model of a submarine;selecting a maneuvering motion performance index corresponding to a certain operation condition, and calculating a sensitivity index of the maneuvering motion performance index to each hydrodynamic coefficient in the six-degree-of-freedom motion model of the submarine; clustering each hydrodynamic coefficient in the six-degree-of-freedom motion model of the submarine by using an unsupervised learning algorithm according to the sensitivity index to obtain a clustering result of each hydrodynamic coefficient; and carrying out hydrodynamic coefficient simplification on the six-degree-of-freedom motion model of the submarine according to the clustering result to obtain a submarine motion simplification model. According to the embodiment of the invention, the unsupervised learning algorithm isadopted to cluster each hydrodynamic coefficient in the submarine motion model, and the simplification of the submarine motion model is realized based on the clustering result, so that the operation difficulty and complexity of measurement of the hydrodynamic coefficients can be reduced, and the simplified model has higher accuracy.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of submarine motion control, and more particularly, relate to a method and device for simplifying a submarine motion model. Background technique [0002] When a submarine is navigating underwater, it is vulnerable to a short and large reverse impact force, its attitude will be greatly affected, and the stern rudder is likely to be in a state of reverse speed. In order to ensure the safety and stability of the submarine, the depth of the submarine Precise control of attitude and attitude requires motion and control modeling of the submarine. [0003] When a submarine sails underwater, it is essentially a space moving body with six degrees of freedom. According to the relevant knowledge of fluid mechanics, kinematics and dynamics, the six-degree-of-freedom motion equation of the submarine's underwater motion can be derived. The key to determining the submarine motion model is to determi...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06K9/62
Inventor 佘莹莹张伟赵寅刘承何晋秋王磊万涛郭嵩徐侃唐一夫
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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