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

fYear

2009

fDate

20-24 July 2009

Firstpage

289

Lastpage

292

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICRMS.2009.5270188

Filename

5270188