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Design method of a comprehensive environmental test chamber for civil aircraft braking system

A technology of integrated environment and braking system, applied in the field of development of civil aircraft braking system environmental test equipment, can solve problems such as unguaranteed testing, achieve the effects of improving development quality, improving social benefits, and avoiding maintenance costs

Active Publication Date: 2020-06-09
XIAN AVIATION BRAKE TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The existing domestic and foreign comprehensive environmental test chamber development technologies have limitations in this regard, and it is impossible to guarantee the completion of the above tests

Method used

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  • Design method of a comprehensive environmental test chamber for civil aircraft braking system
  • Design method of a comprehensive environmental test chamber for civil aircraft braking system
  • Design method of a comprehensive environmental test chamber for civil aircraft braking system

Examples

Experimental program
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Embodiment Construction

[0042] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0043] This embodiment determines the design parameters of a comprehensive environmental test box for a civil aircraft brake system. The comprehensive environmental test box can be combined with an electric vibrating table, high temperature and low temperature oil sources to perform high temperature life test, low temperature life test, Comprehensive stress test. The design parameters of the test chamber include:

[0044] High temperature range; low temperature range; heating and cooling rates under load conditions; temperature protection design for the brake system; structural design. In order to meet the test requirements of the braking system, the mean time between failures MTBF of the comprehensive environmental test box is 5000h.

[0045] see figure 2 , the specific process of this embodiment is:

[0046] Step 1: Determine the temper...

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Abstract

The invention belongs to the field of civil aircraft brake system environment test equipment development, and relates to a design method of a civil aircraft brake system comprehensive environment testbox. The design method comprises the steps that the temperature design parameter of the comprehensive environment test box is determined; design of the high temperature protection function is performed on the brake system; the structural design of the comprehensive environment test box is determined; and reliability testing of the comprehensive environment test box is performed so that whether the requirement of mean time between failures MTBF=5000h is met can be determined. The reliability of the comprehensive environment test box is enhanced so that waste of resources and energy caused by frequent replacing of the comprehensive environment test box can be avoided and the pollution to the environment can be reduced.

Description

technical field [0001] The invention belongs to the field of research and development of civil aircraft brake system environmental test equipment, and relates to a design method of a civil aircraft brake system comprehensive environmental test box. Background technique [0002] According to the temperature test of the conventional aircraft brake system, the method of each product is carried out independently one by one. Domestic and foreign users directly purchase standard comprehensive environmental test chambers. During the procurement process, the design parameters for special purposes are not mentioned, the derating design method is not explicitly adopted, and the reliability indicators of comprehensive environmental test chambers are not tested. Therefore, domestic and foreign users are in During use, equipment failure occurs frequently, which affects the normal operation of the product test. [0003] The environmental test standard represented by the American standard...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00
CPCB64F5/60G01M99/00
Inventor 乔建军乔子骅彭娟张宏艳
Owner XIAN AVIATION BRAKE TECH
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