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A method for measuring and controlling the temperature of an aircraft canopy

A technology of temperature measurement and control method, which is applied in the direction of using electric means for temperature control and applying stable tension/pressure to test the strength of materials, which can solve problems such as corrosion and abnormal damage of the canopy cover.

Active Publication Date: 2019-09-24
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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AI Technical Summary

Problems solved by technology

[0002] The determination of the service life of the transparent plexiglass of the aircraft canopy is an important link in the design of the aircraft life. The determination of the service life is mainly based on the heating and loading fatigue test of the canopy. The most critical thing in the test is the transparent plexiglass of the canopy. The problem of surface temperature measurement and control is specifically manifested in the conventional surface temperature measurement method is to paste the temperature sensor on the surface to be tested with an organic adhesive, and the transparent part of the canopy is plexiglass. During the long-term test process, the organic adhesive will It has a corrosive effect on plexiglass, causing abnormal damage to the canopy

Method used

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  • A method for measuring and controlling the temperature of an aircraft canopy

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specific Embodiment

[0025] First, the canopy debugging part 2 is equipped with a temperature sensor for the debugging part, and the canopy test cover 3 is equipped with a temperature sensor for the test cover. The canopy debugging part 2 is heated. The heating curve selects the first temperature curve A and passes the temperature of the debugging part. The temperature is controlled by the sensor, and the second temperature curve B1 is collected by the temperature sensor of the test hood during the heating process.

[0026] Then, the canopy adjustment part 2 is heated, the heating curve selects the second temperature curve B1 and the temperature is controlled by the test cover temperature sensor, and the third temperature curve C1 is collected by the adjustment part temperature sensor during the heating process.

[0027] At this time, the third temperature curve C1 is not exactly the same as the first temperature curve A, and there is a gap between the two curves, which requires correction of the s...

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Abstract

The invention provides a method for measuring and controlling a temperature of an aircraft canopy. The method comprises heating a canopy debug component according to a first temperature curve, controlling a temperature through a debug component temperature sensor, acquiring a second temperature curve through a test cover temperature sensor, heating a canopy test cover according to the second temperature curve, controlling a temperature through the test cover temperature sensor, at this time, acquiring a third temperature curve through the debug component temperature sensor, correcting the second temperature curve, carrying out re-heating according to the corrected temperature curve until the third temperature curve is the same to the first temperature curve, wherein the second temperature curve is a desired forth temperature curve, heating a test piece through the forth temperature curve and controlling a temperature through the test cover temperature sensor. The method replaces a temperature control method in a fatigue test based on a test piece temperature sensor installed on a canopy test piece so that binder-caused corrosion of organic glass of a canopy is avoided.

Description

technical field [0001] The invention relates to the technical field of aircraft cockpit fatigue tests, in particular to a method for measuring and controlling the temperature of an aircraft cockpit cover. Background technique [0002] The determination of the service life of the transparent plexiglass of the aircraft canopy is an important link in the design of the aircraft life. The determination of the service life is mainly based on the heating and loading fatigue test of the canopy. The most critical thing in the test is the transparent plexiglass of the canopy. The problem of surface temperature measurement and control is specifically manifested in the conventional surface temperature measurement method is to paste the temperature sensor on the surface to be tested with an organic adhesive, and the transparent part of the canopy is plexiglass. During the long-term test process, the organic adhesive will It has a corrosive effect on plexiglass, causing abnormal damage to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/18G05D23/19
Inventor 徐长君范靖王鑫李双书孙卫华
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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