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Investigation into a Potential Reduction of FMEA Efforts Using Action Priority

Barsalou Matthew

Management and Production Engineering Review

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2022

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Vol. 13, No. 4

59--71

EN

FMEAs have been prioritized using RPN; however, a new standard has introduced AP for prioritization. This study seeks to determine if the number of required improvement actions increases, decreases, or stays the same when using AP in place of RPN. Statistical software was used to simulate 10,000 combinations of severity, occurrence, and detection. Both AP and RPN were calculated for the 10,000 combinations. Statistical hypothesis testing was performed to determine if there was a difference between RPNs when sorted by AP and to determine if there was a difference in actions required using RPN or AP. There is a statistically significant difference between RPNs when sorted by high, medium, and low AP. Using an RPN threshold equal to or greater than 100 would result in no change in the number of actions required if prioritizing by high and medium, but would result in fewer actions required if only high is used.

2

The application of a safety comparator in the track circuit of a railway signaling system for counting overvoltage

Wongcharoen Saktanong, Deeon Sansak, Kornkanok Ukrit

Przegląd Elektrotechniczny

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2021

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R. 97, nr 5

146--151

EN

This article presented the application of a safety comparator in the track circuit of a railway signaling system for counting the overvoltage caused by voltage fluctuation resulting in the damage of the BR966F2 relay. Overvoltage counting in the track circuit of the railway signaling system using the safety comparator to detect two voltages in the series circuit and the fault of overvoltage of the track circuit were used for detecting the status of the train in the interlocking system of the railway signaling system, and the digital counter circuit displaying the overvoltage status to monitor and confirm the use of the BR966F2 relay of the railway signaling system that resolved the problem causing the track circuit error, minimized the duration for system maintenance, and maximized the reliable performance of the advanced safety system in the track circuit for the control and command functions of the railway’s operations of the State Railway of Thailand.

PL

W artykule przedstawiono zastosowanie układu bezpieczeństwa w obwodzie torowym sygnalizacji kolejowej do zliczania przepięć wywołanych wahaniami napięcia powodującymi uszkodzenie przekaźnika BR966F2. Zliczanie przepięć w obwodzie torowym sygnalizacji kolejowej za pomocą komparatora bezpieczeństwa do wykrycia dwóch napięć w obwodzie szeregowym oraz zwarcia przepięcia obwodu torowego posłużyło do wykrycia stanu pociągu w blokadach systemu sygnalizacji kolejowej oraz obwodu licznika cyfrowego wyświetlającego stan przepięcia w celu monitorowania i potwierdzenia użycia przekaźnika BR966F2.

3

Application of FMEA in the Quality Estimation of Metal Matrix Composite Castings Produced by Squeeze Infiltration

Gawdzińska K., Chybowski L., Przetakiewicz W., Laskowski R.

Archives of Metallurgy and Materials

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2017

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Vol. 62, iss. 4

2171--2182

EN

Metal matrix composites (MMCs) are still scarcely described due to various combinations of used materials and a wide array of technologies. Applying the Failure Mode and Effect Analysis (FMEA) method to describe the quality of metal composite castings may contribute to eliminating specific (characteristic only to these materials) defects. This part of the analysis determines the criticality numbers, meaning the frequency of a given failure, detectability level and significance of a given failure to the group of specific composite casting failures. It contributes to establishing the priority number (P), which is a measure used to assess risk, a notion essential in discussing quality in a composite casting.

4

Zmodyfikowana analiza FMEA z elementami SFTA w projektowaniu systemu wyszukiwania informacji na temat obiektów hydrotechnicznych w nierelacyjnym, katalogowym rejestrze

Mirończuk M., Maciak T.

Studia Informatica

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2011

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Vol. 32, nr 2B

155-177

PL

W artykule przedstawiono zastosowanie zmodyfikowanej analizy przyczyn i skutków błędów (ang. Failure Modes and Effects Analysis – FMEA), zawierającej drzewo analizy błędów oprogramowania (ang. Software Failure Tree Analysis – SFTA). Analizę tę wykorzystano do zaprojektowania systemu wyszukiwania informacji na temat obiektów hydrotechnicznych, zawartej w nierelacyjnym, katalogowym rejestrze.

EN

This article describes a modified method of failure modes and effects analysis with include software failure tree analysis. This analysis is use to project a search system which based on no relational database i.e. catalog database.

5

Doskonalenie Procesów Produkcyjnych FMEA (Failure mode and effects analysis) - analiza rodzajów i skutków możliwych błędów w maszynach

Sacha S.

Szkło i Ceramika

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2010

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R. 61, nr 2

8-13

PL

W artykule przedstawiono w jaki sposób można wykorzystać narzędzie analityczne FMEA do identyfikacji potencjalnych błędów (wad) oraz możliwości ich wyeliminowania. Zebrane dane w znacznym stopniu pozwolą zapobiegnięciu przestojów urządzeń do załadunku i obróbki w początkowym procesie w zakładach przetwórczych szkła.

EN

The article presents how to use the analytical tool of FMEA to identify potential errors (defects) and their possible elimination. Failure modes and effects analysis (FMEA) is a step-by-step approach for identifying all possible failures in a design, a manufacturing or assembly process, or a product or service. "Failure modes" means the ways, or modes, in which something might fail. Failures are any errors of defects, especially ones that affect the customer, and can be potential or actual. "Effect analysis" refers to studying the consequences of those failures. Failures are prioritized according to how serious their consequences are, how frequently they occur and how easily they can be detected. The purpose of the FMEA is to take actions to eliminate or reduce failures, starting with the highest-priority ones.