The paper discusses a case study concerning the functional safety assessment based on the evaluation of the Safe Failure Fraction (SFF) for a complex system. Being such evaluation made according to IEC61508 standard, the paper focused on some related ambiguities. The paper is structured in two phases. First, a reliability prediction of each component of the system is implemented and then a Failure Mode and Effect, Diagnostic Analysis (FMEDA) is applied, in order to collect information about failure condition of each component. By using this approach it is possible to study SFF of different complex systems in compliance with qualitative requirements described in the aforementioned standard.

Functional safety assessment: An issue for technical diagnostics / M. Catelani;L. Ciani;V. Luongo. - STAMPA. - 1:(2012), pp. 570-574. (Intervento presentato al convegno 20th IMEKO World Congress 2012 tenutosi a Busan; South Korea nel 2012).

Functional safety assessment: An issue for technical diagnostics

CATELANI, MARCANTONIO;CIANI, LORENZO;
2012

Abstract

The paper discusses a case study concerning the functional safety assessment based on the evaluation of the Safe Failure Fraction (SFF) for a complex system. Being such evaluation made according to IEC61508 standard, the paper focused on some related ambiguities. The paper is structured in two phases. First, a reliability prediction of each component of the system is implemented and then a Failure Mode and Effect, Diagnostic Analysis (FMEDA) is applied, in order to collect information about failure condition of each component. By using this approach it is possible to study SFF of different complex systems in compliance with qualitative requirements described in the aforementioned standard.
2012
Proceedings of 20th IMEKO World Congress 2012
20th IMEKO World Congress 2012
Busan; South Korea
2012
M. Catelani;L. Ciani;V. Luongo
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/835312
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