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A failure propagation methodology for analyzing functional models of extremely large complex systems

Akoto Chama, Leonel and Bertram, Oliver (2018) A failure propagation methodology for analyzing functional models of extremely large complex systems. 20th International Dependency and Structure Modeling Conference, DSM2018, 15.-17. Okt. 2018, Trieste, Italy.

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Abstract

The identification of risk of potential loss of system functionality within the early stages in designing complex systems is of growing importance for risk sensitive industries. In order to enhance early design and analysis of complex system architectures using design structure matrices, this paper introduces a failure propagation index methodology for analyzing functional architecture concepts for extremely large complex systems. Unlike the classical hazard analysis techniques which become difficult to handle for extremely large complex systems, this work proposes a functional failure propagation indexing method that segments a large complex system and applies failure propagation modulating factors to estimate the criticality of the system’s elements. The propagation index quantifies the relative impact of a functional failure on the overall architecture. The feasibility of the method is demonstrated using a functional model of a multifunctional actuation system architecture concept for the high-lift of a fixed wing aircraft.

Item URL in elib:https://elib.dlr.de/124968/
Document Type:Conference or Workshop Item (Lecture)
Title:A failure propagation methodology for analyzing functional models of extremely large complex systems
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Akoto Chama, LeonelLeonel.Akoto (at) dlr.deUNSPECIFIED
Bertram, Oliveroliver.bertram (at) dlr.deUNSPECIFIED
Date:2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:extremely large complex systems, functional failure propagation analysis, design structure matrix, system element criticality, aircraft, high lift actuation system concept
Event Title:20th International Dependency and Structure Modeling Conference, DSM2018
Event Location:Trieste, Italy
Event Type:international Conference
Event Dates:15.-17. Okt. 2018
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: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Safety Critical Systems&Systems Engineering
Deposited By: Akoto, Leonel Chama
Deposited On:13 Dec 2018 11:59
Last Modified:13 Dec 2018 11:59

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