Extending Sysml Models To Enable Automatic Generation Of Fault Trees

Keywords

Fault trees; Industrial engineering; Internal block diagram; SysML

Abstract

Building a fault tree for a complex system can be a daunting task. The graphical nature of fault tree models drive the resulting abstraction to be large requiring numerous 'views' to represent the entire system. Subsequently, manual generation can be prone to errors. Many complex systems today employ a model-based system engineering (MBSE) approach to govern the design. This paper outlines a method to auto-generate fault trees directly from an MBSE design. It centers on the internal block diagrams (IBD) rendered from SysML models which contribute to defining the system's structure. The IBD conveys the connectivity among the components, so there is information inherent in these views that can aid fault tree development. As failure modes for their construction are not readily available within an IBD, a technique to minimally extend the SysML model and link such failures to the applicable components is illustrated. Using an IBD depicting a cryogenic storage tank's pressurization system, an example is provided that demonstrates this method.

Publication Date

1-1-2017

Publication Title

67th Annual Conference and Expo of the Institute of Industrial Engineers 2017

Number of Pages

1085-1090

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

85031017526 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85031017526

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