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Ship simulation method and system

A simulation method and ship technology, applied in the field of simulation, can solve problems such as large simulation errors

Inactive Publication Date: 2017-05-31
北京捷安申谋军工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a ship simulation method and system, aiming to solve the problem of large error in conventional simulation,

Method used

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  • Ship simulation method and system

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Embodiment Construction

[0076]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. 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.

[0077] Such as figure 1 As shown, the present invention provides a kind of ship simulation method, comprising:

[0078] S101. Obtain the initial position and motion parameters of the ship;

[0079] S102. Obtain the actual six-degree-of-freedom parameters of the ship obtained through experiments;

[0080] S103. Input the initial position and motion parameters of the ship into the six-degree-of-freedom ship motion mathematical model, and determine the s...

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Abstract

The invention discloses a ship simulation method and system and belongs to the technical field of simulation. The method comprises: acquiring initial position and motion parameters of a ship; acquiring actual six-DOF (six degrees of freedom) parameters of the ship acquired via experimentation; inputting the initial position and motion parameters of the ship to a six-DOF ship motion mathematical model, and determining simulation six-DOF parameters of the ship; adjusting model parameters of the six-DOF ship motion mathematical model when errors between the simulation six-DOF parameters and the actual six-DOF parameters exceed a preset threshold range, re-determining simulation DOF parameters of the ship; outputting simulation DOF parameters having errors within the preset threshold range. The six-DOF ship motion mathematical model used in the method has a full consideration on the coupled effect of a ship heaving and pitching in non-still state, optimal six-DOF parameters can be acquired, ship simulation calculation precision is improved, and experimental errors are decreased.

Description

technical field [0001] The invention relates to the technical field of simulation, in particular to a ship simulation method and system. Background technique [0002] For surface navigation simulation, it is necessary to simulate aircraft or ship models. These simulated objects usually include the simulation of the translation process of the center of mass and the simulation of the rotation process around the center of mass. The translation process of the center of mass needs to be simulated through three degrees of freedom. The rotation process of the center of mass needs to be simulated through another three degrees of freedom, so it is necessary to describe the motion process of the simulated object through six degrees of freedom. [0003] In simulated voyage, the mathematical model of ship motion determines the state of ship motion, and its accuracy directly affects the fidelity of ship simulator simulation. Most of the simulators in the prior art use the MMG three-degr...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 冯坤白晓亮张玉柱徐明亮吕培
Owner 北京捷安申谋军工科技有限公司
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