Operational Reliability Calculations for Critical Systems

Roger Goodall; Roger Dixon; Vincent M. Dwyer

doi:10.1016/B978-008044485-7/50130-5

Operational Reliability Calculations for Critical Systems

Roger Goodall, Roger Dixon, Vincent M. Dwyer

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

Reliability theory deals with the effect of mean time to repair upon overall system failure rates, but for critical systems such calculations are not what is required because an important performance criterion relates to operational failures, which are fundamentally different than unsafe failures: Essentially they are the result of the system-level response to avoid unsafe failures. This chapter introduces the particular problem for critical systems in general, presents an analysis of some of the relevant conditions, and provides some simulation results in the context of a railway active suspension application that illustrates the overall effects and trends.

Original language	English
Title of host publication	Fault Detection, Supervision and Safety of Technical Processes 2006
Subtitle of host publication	A Proceedings Volume from the 6th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes
Editors	Hong-Yue Zhang
Publisher	Elsevier Ltd
Pages	771-776
Number of pages	6
Volume	2
Edition	1
ISBN (Electronic)	9780080555393
ISBN (Print)	9780080444857
DOIs	https://doi.org/10.1016/B978-008044485-7/50130-5
Publication status	Published - 1 Mar 2007
Externally published	Yes
Event	6th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes - Beijing, China Duration: 30 Aug 2006 → 1 Sep 2006 https://books.google.co.uk/books/about/Safeprocess_2006.html?id=fzTPuAEACAAJ&redir_esc=y https://www.sciencedirect.com/book/9780080444857/fault-detection-supervision-and-safety-of-technical-processes-2006

Conference

Conference	6th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes
Abbreviated title	SAFEPROCESS 2006
Country/Territory	China
City	Beijing
Period	30/08/06 → 1/09/06
Internet address	https://books.google.co.uk/books/about/Safeprocess_2006.html?id=fzTPuAEACAAJ&redir_esc=y https://www.sciencedirect.com/book/9780080444857/fault-detection-supervision-and-safety-of-technical-processes-2006

Access to Document

10.1016/B978-008044485-7/50130-5Licence: Unspecified

Cite this

Goodall, R., Dixon, R., & Dwyer, V. M. (2007). Operational Reliability Calculations for Critical Systems. In H-Y. Zhang (Ed.), Fault Detection, Supervision and Safety of Technical Processes 2006: A Proceedings Volume from the 6th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes (1 ed., Vol. 2, pp. 771-776). Elsevier Ltd. https://doi.org/10.1016/B978-008044485-7/50130-5

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abstract = "Reliability theory deals with the effect of mean time to repair upon overall system failure rates, but for critical systems such calculations are not what is required because an important performance criterion relates to operational failures, which are fundamentally different than unsafe failures: Essentially they are the result of the system-level response to avoid unsafe failures. This chapter introduces the particular problem for critical systems in general, presents an analysis of some of the relevant conditions, and provides some simulation results in the context of a railway active suspension application that illustrates the overall effects and trends. ",

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note = "6th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes, SAFEPROCESS 2006 ; Conference date: 30-08-2006 Through 01-09-2006",

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Goodall, R, Dixon, R & Dwyer, VM 2007, Operational Reliability Calculations for Critical Systems. in H-Y Zhang (ed.), Fault Detection, Supervision and Safety of Technical Processes 2006: A Proceedings Volume from the 6th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes. 1 edn, vol. 2, Elsevier Ltd, pp. 771-776, 6th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes, Beijing, China, 30/08/06. https://doi.org/10.1016/B978-008044485-7/50130-5

Operational Reliability Calculations for Critical Systems. / Goodall, Roger; Dixon, Roger; Dwyer, Vincent M.

Fault Detection, Supervision and Safety of Technical Processes 2006: A Proceedings Volume from the 6th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes. ed. / Hong-Yue Zhang. Vol. 2 1. ed. Elsevier Ltd, 2007. p. 771-776.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Dixon, Roger

AU - Dwyer, Vincent M.

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N2 - Reliability theory deals with the effect of mean time to repair upon overall system failure rates, but for critical systems such calculations are not what is required because an important performance criterion relates to operational failures, which are fundamentally different than unsafe failures: Essentially they are the result of the system-level response to avoid unsafe failures. This chapter introduces the particular problem for critical systems in general, presents an analysis of some of the relevant conditions, and provides some simulation results in the context of a railway active suspension application that illustrates the overall effects and trends.

AB - Reliability theory deals with the effect of mean time to repair upon overall system failure rates, but for critical systems such calculations are not what is required because an important performance criterion relates to operational failures, which are fundamentally different than unsafe failures: Essentially they are the result of the system-level response to avoid unsafe failures. This chapter introduces the particular problem for critical systems in general, presents an analysis of some of the relevant conditions, and provides some simulation results in the context of a railway active suspension application that illustrates the overall effects and trends.

KW - Reliability analysis

KW - Fault tolerance

KW - railways

KW - Safety Analysis

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U2 - 10.1016/B978-008044485-7/50130-5

DO - 10.1016/B978-008044485-7/50130-5

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Goodall R, Dixon R, Dwyer VM. Operational Reliability Calculations for Critical Systems. In Zhang H-Y, editor, Fault Detection, Supervision and Safety of Technical Processes 2006: A Proceedings Volume from the 6th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes. 1 ed. Vol. 2. Elsevier Ltd. 2007. p. 771-776 doi: 10.1016/B978-008044485-7/50130-5

Operational Reliability Calculations for Critical Systems

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