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Propeller model construction method based on ship test

A construction method and propeller technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of cumbersome modification and long time for propeller modeling, avoiding the cumbersome manual operation and avoiding cumbersomeness. , the effect of simple and quick operation

Pending Publication Date: 2020-11-10
智慧航海(青岛)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a method for constructing a propeller model based on a ship test, which solves the technical problems of long time spent on propeller modeling and cumbersome modifications

Method used

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  • Propeller model construction method based on ship test
  • Propeller model construction method based on ship test
  • Propeller model construction method based on ship test

Examples

Experimental program
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Effect test

Embodiment 1

[0051] Such as figure 1 As shown, the flow chart of the propeller model construction method based on the ship test provided in this embodiment, in this embodiment, constructing the propeller model in the ship hydrodynamic simulation test system includes the following steps:

[0052] S1. Obtain each control point of the propeller blade section in the blade coordinate system O 2 x 2 Y 2 Z 2 The two-dimensional value points below, and the three-dimensional conversion of the two-dimensional value points to obtain the three-dimensional value points in the global coordinate system.

[0053] Step S1 specifically includes:

[0054] S11. Obtain each control point of the propeller blade section in the blade coordinate system O 2 x 2 Y 2 Z 2 The two-dimensional value point under (Y 2 ,Z 2 ), the two-dimensional value points of each control point on the propeller blade section (Y 2 ,Z 2 ) is an approximation obtained through complex projection of the helical surface intersecte...

Embodiment 2

[0084] Based on the propeller model construction method proposed in Embodiment 1, this embodiment provides a propeller test model generation and application process, including the following steps:

[0085] A1. According to the test requirements, determine the type of propeller, based on the ship hydrodynamic simulation test system, convert the two-dimensional value points of each control point of the propeller blade section, and save it as a txt format file;

[0086] A2. Select the txt format file to be imported, and generate three-dimensional discrete data points on the model creation interface of the ship hydrodynamic simulation test system, and the corresponding lines and surfaces are also drawn successfully at the same time, and the error accuracy is controlled within one thousandth;

[0087] A3. Save the drawn propeller model in the database model library for calling by the ship hydrodynamic simulation test system;

[0088] A4. Input the basic parameters of the propeller ...

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Abstract

The invention relates to the technical field of ship hydrodynamic performance tests, in particular to a propeller model construction method based on a ship test. A propeller model is constructed in aship hydrodynamic simulation test system, and the method comprises the following steps: S1, obtaining two-dimensional type value points of each control point of a propeller blade section under a bladecoordinate system O2X2Y2Z2, and performing three-dimensional conversion on the two-dimensional type value points to obtain three-dimensional type value points under a global coordinate system; S2, inputting the three-dimensional type value points under the global coordinate system and preset propeller parameter information into a ship hydrodynamic performance test system; and S3, based on the three-dimensional type value points under the global coordinate system and preset propeller parameter information, utilizing a three-dimensional tool to create a propeller model. The technical problems that existing propeller modeling is long in consumed time and complicated in modification are solved.

Description

technical field [0001] The invention relates to the technical field of ship hydrodynamic performance tests, in particular to a method for constructing a propeller model based on ship tests. Background technique [0002] In the research and development of intelligent ships, not only the motion analysis of the virtual simulation of the hull is required, but also the hydrodynamic performance of some components of the ship, such as propellers, rudders and other mechanical equipment components that have a greater impact on ship motion. performance studies. As the most commonly used propulsion device for ships, propellers have complex geometric shapes and phenomena such as fluid splitting and vortices, which make the flow structure in the flow field very complicated, and the analysis of the hydrodynamic performance of propellers is essential in ship tests means. The analysis of the performance of the propeller is based on the propeller model, so the creation of the model is an i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/28G06F113/08G06F119/14
CPCG06F30/15G06F30/28G06F2113/08G06F2119/14Y02T90/00
Inventor 王晓原夏媛媛姜雨函朱慎超王曼曼赵新越张金磊
Owner 智慧航海(青岛)科技有限公司
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