Reliability analysis of aircraft servo-actuation systems based on the evidential networks with imprecise information

Jianping Yang, Dunwei Wen, Hong Zhong Huang, Hu Wan, Rui Sun

    Research output: Chapter in Book/Report/Conference proceedingPublished Conference contributionpeer-review

    3 Citations (Scopus)

    Abstract

    A servo-actuation system is one of the key executing subsystems of the flight control system of an aircraft. With the development of the fly-by-wire control systems, the redundant servo-actuation systems have been extensively applied. A servo-actuation system has a long life and high reliability, which results in the lack of experiment information. In the meantime, the available data is insufficient and imprecise during its product design stage. In this paper, the evidential networks or simply EN are adopted to handle the imprecise probabilities. The formulae of marginal belief mass for series and parallel systems are represented respectively. The basic reliability model and mission reliability model of a three-redundancy servo-actuation system in an aircraft flight control system are analyzed using the EN approach, respectively. The EN manage and quantify the imprecision of the servo-actuation effectively, and propagate the imprecision from the root nodes to the top nodes, which represent system reliability.

    Original languageEnglish
    Title of host publicationICQR2MSE 2011 - Proceedings of 2011 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering
    Pages187-194
    Number of pages8
    DOIs
    Publication statusPublished - 2011
    Event2011 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering, ICQR2MSE 2011 - Xi'an, China
    Duration: 17 Jun. 201119 Jun. 2011

    Publication series

    NameICQR2MSE 2011 - Proceedings of 2011 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering

    Conference

    Conference2011 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering, ICQR2MSE 2011
    Country/TerritoryChina
    CityXi'an
    Period17/06/1119/06/11

    Keywords

    • Dempster-Shafer evidence theory
    • evidential networks
    • imprecise probability
    • reliability analysis
    • servo-actuation system

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