Icing wind tunnel anti-icing and deicing test method and system

A test method and test system technology, applied in the field of anti-icing and deicing test methods and systems in icing wind tunnels, can solve problems such as easy icing or overflow ice, difficulty in setting periodic control laws, etc.

Active Publication Date: 2020-10-20
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The purpose of the present invention is to provide an anti-icing test method and system in an icing wind tunnel, aiming to solve the technical problems in the prior art that it is difficult to set the periodic control law, and icing or overflowing ice is still prone to occur after the test

Method used

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  • Icing wind tunnel anti-icing and deicing test method and system
  • Icing wind tunnel anti-icing and deicing test method and system
  • Icing wind tunnel anti-icing and deicing test method and system

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Embodiment 1

[0057] Such as Figure 4 Shown is a kind of icing wind tunnel anti-deicing test method provided by the embodiment of the present invention, which comprises the following steps:

[0058] Set up a periodic control law mesh;

[0059] Carry out the initial periodic electric heating anti-icing test;

[0060] Update the periodic control law grid according to the following conditions to obtain the updated periodic control law grid: after the initial periodic electrothermal anti-icing test, if the surface of the component to be tested still freezes, add the periodic control law grid time in the on-state in the grid; after completing the initial periodic electrothermal anti-icing test, if overflow ice appears on the surface of the component to be tested, increase the time in the off-state in the periodic control law grid;

[0061] The periodic electrothermal anti-icing test is carried out again with the updated periodic control law grid.

[0062] In the embodiment of the present inv...

Embodiment 2

[0074] Embodiment 2 of the present invention provides an icing wind tunnel anti-icing test system, which includes a periodic control law grid setting module and a periodic control law grid updating module, wherein:

[0075] The periodic control law grid setting module is used to set the periodic control law grid;

[0076] The periodic control law grid update module is used to update the periodic control law grid according to the following conditions after the initial periodic electrothermal anti-icing test to obtain the updated periodic control law grid: the initial periodic electrothermal anti-icing test is completed After the test, if ice still occurs on the surface of the component to be tested, increase the time of the on-state in the periodic control law grid; after completing the initial periodic electrothermal anti-icing test, if there is overflow ice on the surface of the component to be tested, Then increase the off-state time in the periodic control law mesh.

[0077]...

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Abstract

The invention is suitable for the technical field of wind tunnel tests, and provides an icing wind tunnel anti-icing and deicing test method and system. The method comprises the following steps of: setting a periodic control law grid; carrying out a primary periodic electric heating anti-icing and deicing test; updating the periodic control law grid according to the following conditions to obtainan updated periodic control law grid: after the primary periodic electric heating anti-icing and deicing test is completed, if the surface of a to-be-tested part is still iced, increasing the on-statetime in the periodic control law grid; after the primary periodic electric heating anti-icing and deicing test is completed, if overflow ice appears on the surface of the to-be-tested part, increasing the off-state time in the periodic control law grid; and performing the periodic electric heating anti-icing and deicing test again by using the updated periodic control law grid. According to the icing wind tunnel anti-icing and deicing test method and system, the periodic control law is simple to set, and icing and ice overflowing are not prone to occurring after the test.

Description

technical field [0001] The invention belongs to the technical field of wind tunnel tests, and in particular relates to a method and system for anti-icing tests in an icing wind tunnel. Background technique [0002] When the aircraft passes through a cloud layer containing a large amount of supercooled water droplets, the surface of its windward parts hits the water droplets and is prone to icing, resulting in damage to the shape and a significant drop in aerodynamic performance. More importantly, even if some key parts or icing detection devices The amount of icing produced is very small, which will also cause flight safety accidents. Therefore, in order to prevent the icing from endangering the flight process and avoid accidents, anti-icing measures are usually taken for the icing-prone parts of the aircraft. Electric heating anti-icing is one of the anti-icing protection measures for aircraft. It uses electric heating to keep the surface temperature of the anti-icing part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/02G01M9/06G05B13/04B64F5/60
CPCB64F5/60G01M9/02G01M9/06G05B13/042
Inventor 冉林熊建军易贤张平涛柳庆林赵照
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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