Title :
Reliability analysis method of an aircraft engine FADEC system
Author :
Chen, Baisong ; Li, Changping ; Li, Yongze ; Wang, Ailian
Author_Institution :
Dept. of Mech. & Aeronaut. Eng., Air force Aviation Univ., Changchun, China
Abstract :
This paper presents a new method, called ldquostate-partrdquo method, to establish the reliability model of the Full Authority Electronic Control system (FADEC) aiming to control the aircraft engine. Using this method, the system reliability, as well as the part reliability, can be calculated. The key parts which decide the system reliability can be determined. On the basis of above calculation, the reliability of simple FADEC, FADEC with software redundancy, FADEC with both software redundancy and mechano-hydraulic redundancy and the mechano-hydraulic controller is analyzed and compared. Finally some corresponding conclusions are drawn to improve the reliability of the FADEC system.
Keywords :
aerospace computing; aerospace engines; aircraft control; hydraulic control equipment; reliability; aircraft engine FADEC system; full authority electronic control system; mechanohydraulic controller; mechanohydraulic redundancy; reliability analysis method; software redundancy; state-part method; Aerospace electronics; Aircraft propulsion; Area measurement; Control system synthesis; Control systems; Engines; Feedback; Redundancy; Reliability; Velocity measurement; FADEC system; aircraft engine; reliability; reliability modelling;
Conference_Titel :
Reliability, Maintainability and Safety, 2009. ICRMS 2009. 8th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4903-3
Electronic_ISBN :
978-1-4244-4905-7
DOI :
10.1109/ICRMS.2009.5270188
