Reliability analysis on combination of FMECA and FTA for redundant actuator system

Author

Jianfeng, Tao ; Shaoping, Wang ; Yiping, Yao ; Peiqiong, Li

Author_Institution

Beijing Univ. of Aeronaut. & Astronaut., China

fYear

1999

fDate

36465

Abstract

Modern control systems are mostly composed of hardware and software, the performance of which is affected by their hardware and software. Therefore, when analyzing the system´s reliability, the effect of the hardware, software and their interaction must be considered. In this paper, we study the reliability analysis of the triplex electronic-hydraulic servo actuator system with a combination of FMECA and FTA. This method is partly based on the knowledge database, that is, some of the FMECA information comes from the knowledge database, and some of that comes from the analyzers. When the FMECA information of the system is enough, the subtrees of the system´s typical components can be constructed with the aid of the computer, and that will help the analyzers finish the construction of the system´s entire fault tree

Keywords

actuators; computerised control; control system analysis computing; electrohydraulic control equipment; fault trees; redundancy; reliability theory; servomechanisms; FMECA; FTA; control systems; criticality analysis; failure mode effects; fault tree analysis; knowledge database; redundant actuator system; reliability analysis; system reliability; triplex electronic-hydraulic servo actuator system; Actuators; Control systems; Databases; Fault trees; Hardware; Information analysis; Reliability; Servomechanisms; Software performance; US Department of Transportation;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Avionics Systems Conference, 1999. Proceedings. 18th

Conference_Location

St Louis, MO

Print_ISBN

0-7803-5749-3

Type

conf

DOI

10.1109/DASC.1999.863708

Filename

863708