Research And Application Of Reliability In Civil Aircraft Maintenance Engineering

Reliability is an important parameter to measure comprehensive performance of aircraft,It can ensure the benefits of airlines and the safety of the people?Aircraft reliability refers to the ability to complete a scheduled task under certain conditions and time,Generally include the stability,safety and durability of aircraft components and systems ? At present,The idea of reliability centered maintenance has become the guiding ideology of China's aviation maintenance management.Based on domestic conditions of latter beginning and poor data on reliability and maintainability,development of reliability theory,index system and reliability management work of whole fleet is studied in this dissertation.The reliability evaluation method based on components system and its importance was proposed to find the weaknesses of restricting reliability.The service reliability of an aeroengine was evaluated by the method based on field failure data.The reliability evaluation system with three layers assessment indicators was established by AHP.The reliability index were calculated by mathematical statistics based on life distribution model of the same style failure.The Mean Time Between Failure of components system and the whole engine were obtained by weighted fusion method to evaluate reliability of the aeroengine.It provides reference for field maintenance and regular inspections for each components system of the aeroengine.