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Simulation test system and method for ship wave resistance increasing performance analysis

A test system and test method technology, applied in the field of ship wave resistance increase performance analysis and simulation test system, can solve problems such as low reference value, increased ship resistance, poor stability, etc., to shorten the test period, reduce test costs, and improve efficiency. Effect

Pending Publication Date: 2021-01-05
智慧航海(青岛)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the increase of the resistance of the ship in the short wave, the test cost of the model test is high, the test period is long, and there are still shortcomings such as the limitation of the wave generator capacity of the physical pool for the simulation of the short wave environment and the poor stability of the short wave. The dispersion is relatively serious, which makes it difficult to simulate high-quality short waves in the pool. Integrating the influence of other factors, the uncertainty of the model test due to the increase of ship resistance in short waves is relatively large.
Theoretical calculation is a research method based on the potential flow theory, which cannot consider the influence of fluid viscosity. There are many assumptions, the reliability of the calculation results is poor, and the reference value is low; Non-linear phenomena such as rollover, potential flow theory cannot study such nonlinear phenomena

Method used

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  • Simulation test system and method for ship wave resistance increasing performance analysis
  • Simulation test system and method for ship wave resistance increasing performance analysis
  • Simulation test system and method for ship wave resistance increasing performance analysis

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Experimental program
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Effect test

Embodiment 1

[0060] figure 1 It shows a schematic diagram of the architecture of the simulation test system used for the analysis of the wave resistance increasing performance of the ship in the first embodiment of the present application. As shown in the figure, the simulation test system 100 used for the analysis of ship wave resistance increasing performance includes:

[0061] A model creation unit 101, configured to create a numerical wave pool model, and establish a ship model based on the main scale parameters of the target ship;

[0062] The grid division unit 102 is used to determine the calculation area based on the numerical wave pool model and the ship model, and perform grid division on the calculation area to generate discrete grids;

[0063] The wave manufacturing unit 103 is used to generate regular waves for the ship wave resistance test according to the preset wave load parameters in the numerical wave tank model;

[0064] The resistance-increasing test unit 104 is used ...

Embodiment 2

[0079] figure 2 It is a schematic diagram of the simulation test system architecture for the analysis of the ship's wave resistance increasing performance in the second embodiment of the application, such as figure 2 As shown, the system in this embodiment consists of seven parts: user management, event processing, test application, report statistics, data capture, data storage and monitoring assistance.

[0080] The user management layer mainly implements functions such as collecting, sorting, analyzing, and transmitting user accounts and operation information logged into the system. The specific functions are realized by two modules of file management and operation management.

[0081] The file management module can collect and organize new user registration information and usage habits and transfer them to the user information database for storage. It can also read and analyze user data stored in the user information database when old users log in, and restore the user's...

Embodiment 3

[0107] The second aspect of the present application proposes a simulation test method for analyzing the wave resistance-increasing performance of ships, which can be realized by the above-mentioned simulation test system for ship wave resistance-increasing performance analysis. Figure 5 It is a schematic flow chart of the simulation test method for analyzing the wave resistance increasing performance of ships in the third embodiment of the present application. As shown, the method includes:

[0108] S1. Create a numerical wave tank model, and establish a ship model based on the main scale parameters of the target ship;

[0109] S2. Determine the calculation area based on the numerical wave tank model and the ship model, and perform grid division on the calculation area to generate discrete grids;

[0110] S3. In the numerical wave tank model, generate regular waves for the ship wave resistance test according to the preset wave load parameters;

[0111] S4. In the preset tes...

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Abstract

The invention belongs to the technical field of virtual simulation, and particularly relates to a simulation test system and method for ship wave resistance increasing performance analysis. The systemcomprises a model creation unit used for creating a numerical wave pool model and establishing a ship model based on main scale parameters of a target ship; a grid division unit which is used for determining a calculation area and generating discrete grids; a wave making unit which is used for generating regular waves for the ship wave resistance increasing test according to preset wave load parameters; and a resistance increasing test unit which is used for calculating motion response and wave resistance increasing when the target ship sails at a preset navigation speed under the regular waves through CFD, and carrying out wave resistance increasing prediction on the target ship at different wavelengths and different navigation speeds. According to the system, the test cost is reduced, the test period is shortened, and the efficiency of research and development work is improved; compared with theoretical calculation, the system can consider the influence of fluid viscosity, the experimental result is high in reliability, and the reference value is higher.

Description

technical field [0001] The application belongs to the technical field of virtual simulation, and in particular relates to a simulation test system and method for analyzing the performance of ship wave resistance increase. Background technique [0002] Ships sail in wave environments in most cases, especially ocean-going transport ships, which will encounter various sea conditions during the voyage, and the sea wave environment has become the most important external factor affecting the operational efficiency of ships. Therefore, the sailing performance of a ship in waves can more truly reflect the operational efficiency of the ship. Carrying out ship performance research on the wave environment encountered in the actual operation process has become an important technical approach to improve ship energy utilization efficiency and reduce ship energy consumption. It is also of great significance to improve the safety of oceangoing navigation of ships. [0003] The main researc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/28G06F119/14
CPCG06F30/28G06F30/15G06F2119/14Y02T90/00
Inventor 王晓原夏媛媛姜雨函朱慎超孙鑫冯凯孙懿飞
Owner 智慧航海(青岛)科技有限公司
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