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Robin Clark 2010-09-13 07:41:16 +01:00
parent c7599d4092
commit 5628f58daf
3 changed files with 10 additions and 4 deletions
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2
fmmdset/fmmdset.tex
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@ -163,7 +163,7 @@ and let the set of all possible failure modes be $\mathcal{F}$.
We can define a function $fm$ We can define a function $fm$
\begin{equation} \begin{equation}
fm : \mathcal{C} \mapsto \mathcal{P}\mathcal{F} fm : \mathcal{C} \rightarrow \mathcal{P}\mathcal{F}
\end{equation} \end{equation}
defined by, where C is a component and F is a set of failure modes. defined by, where C is a component and F is a set of failure modes.

6
mybib.bib
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@ -5,6 +5,12 @@
% $Id: mybib.bib,v 1.3 2009/11/28 20:05:52 robin Exp $ % $Id: mybib.bib,v 1.3 2009/11/28 20:05:52 robin Exp $
@ARTICLE{caninauto,
AUTHOR = "H. Zeltwanger",
TITLE = "Single Processor implementation of the CANopen Safety Protocol",
JOURNAL = "CAN in Automation (CiA)",
YEAR = "2008"
}
@ARTICLE{valueoflife, @ARTICLE{valueoflife,
AUTHOR = "W.K. Viscusi", AUTHOR = "W.K. Viscusi",

6
statistics/statistics.tex
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@ -48,7 +48,7 @@ For the Brewery, safety is of the highest importance.
For the Nuclear power station For the Nuclear power station
\section{Terms and Concepts in // Safety Critical Engineering} \section{Terms and Concepts in \\ Safety Critical Engineering}
\subsection{Safety Relevant Data Object} \subsection{Safety Relevant Data Object}
A Safety Relevant Data Object (SRDO)\cite{caninauto}, is a data structure describing the status of A Safety Relevant Data Object (SRDO)\cite{caninauto}, is a data structure describing the status of
@ -58,8 +58,8 @@ the measure neutron flux.
\subsection{Safety relevant Object Validation Time} \subsection{Safety relevant Object Validation Time}
Safety times can be given for SRDO's; these are termed Safety Related Object Validation Times (SROVT's)\cite{caninauto}. For instance were Safety times can be given for SRDO's; these are termed Safety Related Object Validation Times (SROVT's)\cite{caninauto}. For instance were
a flame to fail in operation in a gas burner a flame to fail in operation in a gas burner
standards state that the gas may not continue to be fed into the standards state \cite{en298} that the gas may not continue to be fed into the
furnace for more than three seconds \cite{en298}. furnace for more than three seconds.
We can say that the SROVT for a flame signal in a gas burner is 3 seconds. We can say that the SROVT for a flame signal in a gas burner is 3 seconds.
\subsection{Single and Double Failure Modes} \subsection{Single and Double Failure Modes}
A Safety critical system must self check within the relevant SROVT's. A Safety critical system must self check within the relevant SROVT's.