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Civil airplane airworthiness certification trial flight reliability monitoring method

A civil aircraft, reliability technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as reducing reliability, achieve the effect of optimizing maintenance support and ensuring flight safety

Active Publication Date: 2018-03-06
CHINESE FLIGHT TEST ESTAB
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Application of reliability monitoring methods will not result in higher reliability than the inherent reliability of the original design level, however improper maintenance or lack of maintenance will reduce reliability

Method used

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  • Civil airplane airworthiness certification trial flight reliability monitoring method
  • Civil airplane airworthiness certification trial flight reliability monitoring method
  • Civil airplane airworthiness certification trial flight reliability monitoring method

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Experimental program
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Embodiment Construction

[0027] The present invention is further described in conjunction with accompanying drawing:

[0028] Such as figure 1 and figure 2 As shown, Step 1: fully consider the characteristics of the civil aircraft airworthiness certification flight test stage, and determine the reliability monitoring items, such as crew and maintenance personnel failure reports, delays / cancellations, unplanned engine replacement, engine air stop, and unplanned components Replacement, repeated faults, major faults, etc.;

[0029] Step 2: Establish reliability monitoring parameters and calculation models of aircraft, power plant, structure and other major systems and equipment in layers, such as:

[0030] 1. Aircraft monitoring parameters:

[0031] a Secondary monitoring parameters: repeated faults;

[0032] b Secondary monitoring parameters: important event report (non-structural);

[0033] c Secondary monitoring parameters: major faults found in regular inspections;

[0034] d Secondary monitor...

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Abstract

The invention belongs to the technical field of reliability analysis, and discloses a civil airplane airworthiness certification trial flight reliability monitoring method. According to the method, reliability monitoring projects are determined, monitoring parameters of airplanes, engines, structures, key systems and components and a calculation models of the monitoring parameters are establishedhierarchically, information collection methods of the monitoring parameters are established, reliability monitoring alarm value modeling and adjustment methods are established, and MSG-2 and MSG-3-based alarm analysis method is established on the basis of sufficiently analyzing civil airplane airworthiness certification trial flight characteristics, so that the problem that civil airplane airworthiness certification trial flight reliability assessment and maintenance are separated is solved. According to the method, reliability analysis method-based maintenance control of civil airplane airworthiness certification trial flight is realized, and a method is provided for fusing the reliability assessment and maintenance guarantee of the current trial flight stage, optimizing the maintenance guarantee and ensuring the flight safety.

Description

technical field [0001] The invention belongs to the technical field of reliability analysis, in particular to a reliability monitoring method for civil aircraft airworthiness certification flight test. Background technique [0002] At present, in the reliability evaluation of airworthiness certification flight test, the quantitative evaluation parameters such as mean time between failures flight hours (MFHBF), mean time between failures (MTBF) and dispatch reliability proposed in the development requirements or flight test requirements are mainly established. The evaluation model, after comparing the evaluation results with the requirements of the indicators, gives a conclusion on whether the requirements are met, and evaluates and verifies the compliance of the indicators. The details are as follows: [0003] aAssume that the mean time between failure flight hours (MFHBF) of the verified aircraft is not less than 13h in the flight test requirements. [0004] b. In view of ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15
Inventor 李飞敏赵鹏颜义红沈意张二虎
Owner CHINESE FLIGHT TEST ESTAB