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A high temperature test method for aircraft braking system

A braking system and high temperature test technology, which is applied in the high temperature test field of civil aircraft braking system, can solve problems such as hidden dangers of high temperature faults of products, and achieve the effect of eliminating high temperature faults and avoiding high temperature faults.

Inactive Publication Date: 2019-09-17
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] In order to overcome the inadequacy of the prior art that cannot verify the hidden dangers of high temperature failure of products within the service life, the invention proposes a high temperature test method for the aircraft brake system

Method used

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  • A high temperature test method for aircraft braking system
  • A high temperature test method for aircraft braking system
  • A high temperature test method for aircraft braking system

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Embodiment Construction

[0080] In this embodiment, a high-temperature test is carried out on a brake system of a civil aircraft. The service life of the brake system is 5000 landings / 10 years, whichever comes first. According to the life requirements, the high temperature storage and high temperature working test profiles are formulated.

[0081] This embodiment uses the test equipment shown in Table 1.

[0082] Table 1 Summary of High Temperature Test Equipment for Civil Aircraft Brake System

[0083]

[0084]

[0085] The matching products of the civil aircraft braking system described in this embodiment are shown in Table 2.

[0086] Table 2 Supporting Products of Civil Aircraft Braking System

[0087] serial number name model Function 1 Linear Displacement Sensor DW-1 Provide displacement signal to control box 2 Anti-skid brake control box FH-2 Provide 0~20mA control current to the servo valve 3 servo valve SF-3 Output 0~10MPa pressure 4 ...

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Abstract

The invention discloses a high temperature test method for an aircraft brake system, so as to excite high temperature fault hidden dangers during the life period of the brake system. The test time is determined according to high temperature time in life requirements, the test high temperature value is determined according to a high temperature value during the life period, all products of the brake system are arranged in a high temperature test box according to a system connection mode, and high temperature hydraulic oil is fed to the brake system in a condition in which the air temperature is high. According to the high temperature test time and the high temperature value, a high temperature test section is determined, the high temperature test section meets the high temperature working condition in use, the method is suitable for exciting the high temperature fault hidden dangers during the life period of the brake system, the test period is short, and the cost is low.

Description

technical field [0001] The invention relates to the field of environmental testing of civil aircraft brake systems, in particular to a high-temperature test method for civil aircraft brake systems. Background technique [0002] Environmental tests, including high temperature, low temperature, vibration, and temperature altitude tests, are required in the development process of existing civil aircraft braking systems. Passing all environmental tests in the development requirements is one of the conditions for installation and flight. [0003] Status abroad: [0004] The standards adopted in the environmental testing of foreign civil aircraft products include: [0005] The American standard DO-160 "Environmental Conditions and Test Procedures for Airborne Equipment" includes high temperature, low temperature, vibration, and temperature altitude tests. Passing all the test items stipulated in the agreement means that the environmental test has passed. Each product in the bra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
Inventor 乔建军乔子骅周伯宁刘辉孙洪博张维
Owner XIAN AVIATION BRAKE TECH
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