Method for determining the duration of accelerated test of high-temperature life of aircraft anti-skid brake control device

Abstract

A method for determining the duration of the accelerated test of the high-temperature life of the aircraft anti-skid brake control device. The linear cumulative damage theory is used to establish the accelerated test model of the high-temperature life of the aircraft anti-skid brake control device. The accelerated test plan is formulated according to the accelerated test model of the high-temperature life. , in a short test time to stimulate the aircraft anti-skid brake control device in the first turn over the high temperature fault hidden danger, eliminate the high temperature fault in the first turn over period. The invention is popularized and applied in the high-temperature life test, and can effectively stimulate high-temperature faults and save resources.

Description

technical field

[0001] The invention relates to the field of testing of civil aircraft anti-skid brake control devices, in particular to a method for determining the duration of high-temperature life acceleration tests. Background technique

[0002] The high-temperature life test of electronic products is to formulate a high-temperature life test plan for electronic products and complete the test according to the high-temperature working time during the first turnaround period of the aircraft, so as to ensure that the electronic products will not cause failures caused by high temperatures during the first turnaround period.

[0003] The high temperature life accelerated test is: in the high temperature life test program, the temperature value is increased, and the mathematical model is used to calculate and shorten the test time of the high temperature life, and the purpose of reducing energy consumption is achieved by reducing the test time.

[0004] After investigation, th...

Examples

Embodiment Construction

[0068] In this embodiment, a high-temperature life-span accelerated test is performed on an aircraft anti-skid brake control device. The life index of the aircraft anti-skid brake control device is 5000h, and the high temperature life test time n is 1000h, which is divided into three different temperature values ​​and three different test time n. The starting temperature of the high temperature life test is 40°C. The three different temperature values ​​are: 40°C temperature value, the test duration is n 1 ;Temperature value at 50°C, test duration is n 2 ; 70°C temperature value, the test duration is n 3 .

[0069] The test equipment used in this embodiment is shown in Table 1

[0070] Table 1 Summary of High Temperature Life Accelerated Test Equipment for Civil Aircraft Anti-skid Brake Control Device

[0071] sequence name model quantity Available test stress 1 temperature box EVH74-WC-VL-X 2 Range: -80~180℃; volume 2m3; 15℃ / min. 2 DC po...

technical field

[0001] The invention relates to the field of testing of civil aircraft anti-skid brake control devices, in particular to a method for determining the duration of high-temperature life acceleration tests. Background technique

[0002] The high-temperature life test of electronic products is to formulate a high-temperature life test plan for electronic products and complete the test according to the high-temperature working time during the first turnaround period of the aircraft, so as to ensure that the electronic products will not cause failures caused by high temperatures during the first turnaround period.

[0003] The high temperature life accelerated test is: in the high temperature life test program, the temperature value is increased, and the mathematical model is used to calculate and shorten the test time of the high temperature life, and the purpose of reducing energy consumption is achieved by reducing the test time.

[0004] After investigation, th...

Examples

Embodiment Construction

[0068] In this embodiment, a high-temperature life-span accelerated test is performed on an aircraft anti-skid brake control device. The life index of the aircraft anti-skid brake control device is 5000h, and the high temperature life test time n is 1000h, which is divided into three different temperature values ​​and three different test time n. The starting temperature of the high temperature life test is 40°C. The three different temperature values ​​are: 40°C temperature value, the test duration is n 1 ;Temperature value at 50°C, test duration is n 2 ; 70°C temperature value, the test duration is n 3 .

[0069] The test equipment used in this embodiment is shown in Table 1

[0070] Table 1 Summary of High Temperature Life Accelerated Test Equipment for Civil Aircraft Anti-skid Brake Control Device

[0071] sequence name model quantity Available test stress 1 temperature box EVH74-WC-VL-X 2 Range: -80~180℃; volume 2m3; 15℃ / min. 2 DC po...