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Integrated safety and reliability analysis methods for aircraft system development using multi-domain object-oriented models

Schallert, Christian (2016) Integrated safety and reliability analysis methods for aircraft system development using multi-domain object-oriented models. Dissertation, Technische Universität Berlin.

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Official URL: http://dx.doi.org/10.14279/depositonce-4930

Abstract

Safety and reliability are essential in commercial air transport. Therefore, safety assessment is an inherent part of the aircraft systems development process. Operational reliability has to be considered for economic reasons. Most of the state-of-the-art methods for safety and reliability analysis employ a binary representation of the system. One of these is fault tree analysis (FTA), a manual method that is still common today. Conducting safety or reliability analysis by means of FTA involves considerable effort. In addition, because of the binary, non-physical approach, such analysis tools remain uncoupled to other engineering tools. Nowadays, a multi-domain object-oriented approach has become the state-of-the-art in physical modelling and simulation. Such an approach enables an intuitive method of modelling, in which the objects, their boundaries and interconnections correspond to real existing components. This thesis contributes to the field of model-based methods for system safety and reliability analysis. Here, the most important innovation is that the proposed methods suit multi-domain object-oriented modelling based on differential-algebraic equations. Search techniques and algorithms founded on graph theory were devised in order to minimise the computing effort for conducting an analysis. The proposed methods enable establishing multi-disciplinary engineering tools for the conceptual design of fault-tolerant systems. The aim is improvement of system development and safety assessment processes.

Item URL in elib:https://elib.dlr.de/104833/
Document Type:Thesis (Dissertation)
Title:Integrated safety and reliability analysis methods for aircraft system development using multi-domain object-oriented models
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schallert, ChristianChristian.Schallert (at) DLR.deUNSPECIFIED
Date:January 2016
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:209
Status:Published
Keywords:safety, reliability, automated analysis methods, object oriented modelling, graph algorithms
Institution:Technische Universität Berlin
Department:Institut für Luft- und Raumfahrt
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control
Deposited By: Schallert, Christian
Deposited On:24 Jun 2016 15:26
Last Modified:31 Jul 2019 20:02

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