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Verification method of average repair time of aircraft braking system

A technology of mean time to repair and braking system, applied in the field of maintainability of aircraft braking system, which can solve the problems of not considering factors affecting on-site maintenance, repairing time exceeding the specified time, not mentioning the verification of mean time to repair, etc.

Inactive Publication Date: 2018-07-03
XIAN AVIATION BRAKE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Disadvantages of the calculation and allocation method of maintainability index above: In the summarized model (1), the average repair time of the product is inversely proportional to the failure rate; and it is related to the number of components, the more the number of components, the higher the failure rate
It does not reflect the installation position of the product on the aircraft and the factors affecting the accessibility of the product on the aircraft. It also has the disadvantage of short distribution time for difficult-to-maintain products and long distribution time for easy-to-maintain products.
[0018] To sum up, the existing average repair time calculation method does not consider the factors affecting on-site maintenance, and does not mention the verification of the average repair time. It is directly applied, and there are flight delays when the repair time exceeds the specified time.

Method used

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  • Verification method of average repair time of aircraft braking system
  • Verification method of average repair time of aircraft braking system
  • Verification method of average repair time of aircraft braking system

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Embodiment Construction

[0099] This embodiment is a calculation and verification process of the average repair time of the braking system of a civil transport aircraft. The brake system is composed of 8 products including brake valve, servo valve, solenoid valve, quantizer, wheel speed sensor, control box, switching valve, emergency air pressure brake valve, etc.; it has a take-off line brake function, and the output hydraulic pressure is 18MPa; Landing anti-skid brake function, the output hydraulic pressure is 14MPa; when the maximum control current output by the control box is 20mA, the brake pressure is released to zero; ground turning differential braking function, the output hydraulic pressure is 4MPa; ground parking brake function, the output hydraulic pressure is 10MPa; emergency Brake function, output air pressure 9MPa. The development requires that the average repair time of the brake system at the field level should not exceed 120 minutes.

[0100] Step 1, use calculation method to verify ...

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Abstract

A method for verifying the average repair time of an aircraft braking system. By verifying the calculation data of the average repair time, the accuracy of the calculation data is determined; if the calculation data is accurate, it can be included in the aircraft maintenance manual; If the calculation verification is not consistent with the test verification, it will be revised according to the test verification data. The invention is consistent with the actual average repair time in use, and the average repair time of each product that has passed the calculation and verification is included in the civil aircraft maintenance manual, and the brake system products are arranged according to the average repair time specified in the maintenance manual in the civil aircraft flight dispatch. Maintenance, the accurate average repair time avoids the economic loss and time loss caused by the delay of the civil flight.

Description

technical field [0001] The invention relates to the field of maintainability of aircraft braking systems, in particular to a method for verifying the average repair time of aircraft braking systems. Background technique [0002] Civil aviation aircraft not only require airworthiness, but also have strict restrictions on flight delays. When the average repair time is not allocated properly, there will be situations where maintenance work cannot be completed within the specified time, causing flight delays. [0003] GJB451A's definition of mean repair time is: "A basic parameter of product maintainability, which is a design parameter. Its measurement method is: under specified conditions and within a specified time, the product is at the specified maintenance level, The ratio of the total time of corrective maintenance to the total number of faults of the repaired products at this level.” There are three levels of maintenance for aircraft products: outfield level, intermediate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 乔建军彭娟张宏艳
Owner XIAN AVIATION BRAKE TECH
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