Classical risk assessment and risk management which is gaining importance in many industries is usually based on well defined processes and uses techniques like FTA and FMEA. However, classical risk analysis techniques like FTA and FMEA should ideally be automated, at least to some extent and without loss of effectiveness, to enable fast and cost effective iterations of system modelling and risk analysis that can meet the tight cost and time constraints of most offshore projects. This paper is focused on the presentation of a new concept and tool extension for model-based synthesis of fault trees and FMEAs in which these failure analyses are automatically constructed from engineering design models, e.g. simulation models that have been augmented with information about the local propagation of failures. The simulation model is developed in the commercial system modelling tool SimulationX. The proposed process enables the automatic generation of both fault trees and FMEA tables in a single run of the tool, allowing the FMEA and fault trees to share failure data and allowing the FMEA to include failures caused by multiple basic events. As it is a largely automated process, it could be easily iterated to enable the continuous assessment of evolving designs. It provides an automatic generation of fault trees and FMEA tables for multiple top events in a single run of the tool. The potential benefits from application of this technique and tool are substantial and include simplifying the analysis, easing the examination of effects of design modifications on safety and keeping the safety analyses consistent with the design. Furthermore, the presented approach combines the benefits of simulation and risk analysis in one tool. The benefits of this approach are demonstrated by the example of a blow out preventer for a subsea installation valve.
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ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
June 15–20, 2008
Estoril, Portugal
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4819-7
PROCEEDINGS PAPER
Semi Automatic Failure Analysis Based on Simulation Models Available to Purchase
Rainer Hamann,
Rainer Hamann
Germanischer Lloyd AG, Hamburg, Germany
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Yiannis Papadopoulos,
Yiannis Papadopoulos
University of Hull, Hull, England, UK
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Erich Ru¨de,
Erich Ru¨de
Germanischer Lloyd AG, Hamburg, Germany
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Martin Walker,
Martin Walker
University of Hull, Hull, England, UK
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Rune Lien
Rune Lien
Agito AS, Kongsberg, Norway
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Rainer Hamann
Germanischer Lloyd AG, Hamburg, Germany
Andreas Uhlig
ITI GmbH, Dresden, Germany
Yiannis Papadopoulos
University of Hull, Hull, England, UK
Erich Ru¨de
Germanischer Lloyd AG, Hamburg, Germany
Uwe Gra¨tz
ITI GmbH, Dresden, Germany
Martin Walker
University of Hull, Hull, England, UK
Rune Lien
Agito AS, Kongsberg, Norway
Paper No:
OMAE2008-57256, pp. 265-276; 12 pages
Published Online:
July 27, 2009
Citation
Hamann, R, Uhlig, A, Papadopoulos, Y, Ru¨de, E, Gra¨tz, U, Walker, M, & Lien, R. "Semi Automatic Failure Analysis Based on Simulation Models." Proceedings of the ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. Volume 2: Structures, Safety and Reliability. Estoril, Portugal. June 15–20, 2008. pp. 265-276. ASME. https://doi.org/10.1115/OMAE2008-57256
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