Aircraft reliability evaluation method based on assembly outline and fault list

Abstract

The invention discloses an aircraft reliability evaluation method based on an assembly outline and a fault list. The aircraft reliability evaluation method includes the steps: calculating the actual reliability index observation values of four items, including the average fault interval time MTBF, the average fault interval flight time MFHBF, the success probability MCSP of task completion and thetask time MTBCF between the fatal faults according to the actual condition of the aircraft from entering the test flight station to the delivery period and the assembly outline of the process compilation; and comparing with the designed and shaped minimum acceptable value to obtain a reliability evaluation result, thus conducting reliability evaluation of the aircraft.

Description

technical field [0001] The invention belongs to the technical field of aircraft reliability evaluation, and in particular relates to an aircraft reliability evaluation method based on assembly outlines and trouble sheets. Background technique [0002] Modern high-tech aviation equipment adopts a large number of new technologies and methods, and its performance is continuously improved, but its complexity is also greatly increased. Therefore, the problems of reliability, maintainability, testability, support, safety, and environmental adaptability are also brought about. increasingly obvious. For modern aviation equipment, the requirements of six performance indicators and performance indicators are equally important, and have had a significant impact on improving the combat effectiveness of equipment, improving the success rate of missions, and reducing costs. [0003] In 1993, the Commission of Science, Technology and Industry for National Defense promulgated the "Interim ...

AI Technical Summary

Problems solved by technology

[0005] As the last checkpoint before the product is handed over to the user, the flight test station is in direct contact with the assembled aircraft. From receiving the aircraft in final assembly to passing the military inspection and delivering to the troops, a large amount of data will be generated during the period that can be used to evaluate the reliability of the aircraft. The calculation of indicators, however, military aircraft is different from other types of products on the market. Military aircraft has the characteristics of large size, small batch, long production cycle, and complex internal structure. The larger the organization, the more prone to data loss and omission, and due to the complicated procedures to be carried out, the maintenance personnel cannot accurately provide the corresponding working hours

This leads to low accuracy of the data used to calculate the reliability index, and low credibility of the final evaluation results, so it is very important to unify the data sources of the tested objects

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