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Method for testing faults of antiskid brake control box under complex working conditions

A technology of anti-skid brakes and complex working conditions, which is applied in the direction of electrical testing/monitoring, etc., and can solve problems such as the failure of anti-skid brake control boxes

Inactive Publication Date: 2014-10-08
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0046] In order to overcome the shortcomings in the prior art that cannot be used to stimulate the failure of the anti-skid brake control box under complex working conditions, the present invention proposes a method for testing the failure of the anti-skid brake control box under complex working conditions

Method used

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  • Method for testing faults of antiskid brake control box under complex working conditions
  • Method for testing faults of antiskid brake control box under complex working conditions
  • Method for testing faults of antiskid brake control box under complex working conditions

Examples

Experimental program
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Effect test

Embodiment 1

[0088] This embodiment is to conduct a comprehensive environmental stress and working current test on the anti-skid brake control box of the brake system of the first domestic branch line transport aircraft. If a failure occurs during the test, technical improvement suggestions are proposed for the failure until the test process fails. malfunction. The specific steps of this embodiment are:

[0089] Step 1. Determine the high temperature value that applies comprehensive environmental stress to the anti-skid brake control box

[0090] The high temperature value for applying environmental stress to the anti-skid brake control box is determined according to the high temperature working limit, which is lower than 5℃ of the high temperature working limit.

[0091] When determining the high temperature value of the comprehensive environmental stress test, first, according to the method of determining the high temperature working stress limit of the aircraft anti-skid brake control box dis...

Embodiment 2

[0145] The processes of Example 2 and Example 3 both include determining the high and low temperature values ​​of the comprehensive environmental stress, determining the temperature change rate of the comprehensive environmental stress, determining the vibration set point of the comprehensive environmental stress and the vibration increment and microvibration amount of each cycle Value and micro-vibration time, determine the operating current and operating frequency applied during the test, determine the temperature holding time in the high temperature and low temperature phases of the test, determine the performance test time and test items during the test, and formulate the test profile for complex working conditions. Test profile test, test and verify the improved anti-skid brake control box and other steps. The specific process is the same as that of Example 1, the difference is that the test data in Example 2 and Example 3 are different from the test data in Example 1. See ...

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Abstract

Provided is a method for testing faults of an antiskid brake control box under complex working conditions. Integrated environment stress and a working current are applied to the antiskid brake control box at the same time, testing of five integrated environment stress cycles is carried out, and therefore the faults, about the integrated environment stress and the working current, of the antiskid brake control box are motivated at the same time. When the antiskid brake control box has the faults in a testing process, technical improvement on fault correction should be conducted, and then testing is conducted again until no fault occurs in the five cycles. According to the method, the capability of the antiskid brake control box to adapt to the integrated environment stress can be enhanced, and therefore the antiskid brake control box has no fault when being used under integrated environment conditions.

Description

Technical field [0001] The invention relates to the field of failure testing of civil aircraft electronic products under the combined effects of temperature, vibration and current, in particular to a testing method for stimulating and correcting hidden troubles of anti-skid brake control boxes under the simultaneous actions of comprehensive environmental stress and current. Background technique [0002] The combined working current conditions of temperature and vibration are the operating conditions frequently encountered in aircraft brake systems. Under the above conditions, the components of electronic products are prone to cracks at the solder joints, and may also exhibit performance drift, which makes the performance unqualified. The temperature and vibration comprehensive working current condition test is carried out to simulate the conditions that may be encountered in use, so as to achieve the purpose of stimulating and correcting hidden troubles of electronic products. [0...

Claims

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Application Information

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IPC IPC(8): G05B23/02
Inventor 乔建军陈永强刘刚周世民彭娟张宏艳
Owner XIAN AVIATION BRAKE TECH
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