diff --git a/presentations/fmea/fmea_pres.tex b/presentations/fmea/fmea_pres.tex index 4620ae7..8d5ffe7 100644 --- a/presentations/fmea/fmea_pres.tex +++ b/presentations/fmea/fmea_pres.tex @@ -8,8 +8,13 @@ \begin{document} \section{F.M.E.A.} +\begin{frame} +\frametitle{Outline} +\tableofcontents[currentsection] +\end{frame} \begin{frame} + \begin{itemize} \pause \item Failure \pause \item Mode @@ -72,8 +77,9 @@ approach in looking for system failures. \end{frame} - +\subsection{Rigorous FMEA - State Explosion} \begin{frame} + \frametitle{Rigorous Single Failure FMEA} Consider the analysis where we look at all the failure modes in a system, and then see how they can affect all other components within it. @@ -101,7 +107,7 @@ $100*99*3=29,700$. \begin{frame} - + \frametitle{Rigorous Double Failure FMEA} For looking at potential double failure scenarios (two components failing within a given time frame) and the order becomes $N^3$. @@ -119,24 +125,56 @@ double failure scenarios (for burner lock-out scenarios). \end{frame} -\section{Production FMEA : 1940's to present} +\section{PFMEA - Production FMEA : 1940's to present} \begin{frame} +Production FMEA (or PFMEA), is FMEA used to prioritise, in terms of +cost, problems to be addressed in product production. -Describe process, the probability times the cost +It focuses on known problems, determines the +frequency they occur and their cost to fix. +This is multiplied together and called an RPN +number. +Fixing problems with the highest RPN number +will return most cost benefit. + +\end{frame} + + +\begin{frame} +% benign example of PFMEA in CARS - make something up. +\frametitle{PFMEA Example} \end{frame} - -\subsection{Production FMEA : Example Ford Pinto : 1975} +%\subsection{Production FMEA : Example Ford Pinto : 1975} \begin{frame} - + \frametitle{PFMEA Example: Ford Pinto: 1975} \end{frame} +\section{FMECA - Failure Modes Effects and Criticallity Analysis} +\section{FMEDA - Failure Modes Effects and Diagnostic Analysis} + + +\section{FMEA - Criticism} +\begin{frame} + + +\begin{itemize} + \pause \item Reasoning Distance - component failure to system level symptom + \pause \item State explosion - impossible to perform rigorously + \pause \item + \pause \item +\end{itemize} + +\end{frame} + + +\section{Failure Mode Modular De-Composition} \subsection{FMEA and complexity of each failure scenario analysis} \begin{frame}