Biggest Reliability Mistakes
Abstract
Carl and Fred discussing some of the biggest reliability mistakes they have seen in their careers, and the lessons learned from those mistakes.
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Your Reliability Engineering Professional Development Site
Author of Inside FMEA articles, FMEA Resources page, and multiple books, and a co-host on Speaking of Reliability.
This author's archive lists contributions of articles and episodes.
by Carl S. Carlson Leave a Comment
Carl and Fred discussing some of the biggest reliability mistakes they have seen in their careers, and the lessons learned from those mistakes.
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What is the difference between FMEA and FMECA? Are they the same or different? The answer may surprise you. Let’s explore this topic.
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Carl and Fred discussing the interesting subject of “blind spots,” and how they can impede good designs.
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Carl and Fred discussing how focusing on helping others can enhance your reliability career and provide a sense of community.
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Carl and Fred discussing the integration of artificial intelligence with the tools and procedures of reliability engineering.
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Carl and Fred discussing the integration of reliability activities with engineering decisions, and how to enhance this important intersection.
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Some defense-related applications require a special type of criticality analysis, called Quantitative Criticality Analysis to supplement FMEA applications. This is the “C” in what is called FMECA: Failure Mode, Effects and Criticality Analysis. I’ll shorten Criticality Analysis to CA in this article.
What is Quantitative CA? When and why it is used? Can Quantitative Criticality Analysis be used in commercial applications?
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Carl and Fred discussing a reader question about FMEAs. Specifically, whether reliability predictions (for similar systems) are valid input to the Occurrence rating in an FMEA.
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Did you know that early FMEA standards did not include recommendations to reduce risk? They limited the analysis to the technical risk, without making specific recommendations. The first time I am aware of that an FMEA standard added a column called “Recommended Actions” was in 1993. Thankfully, it is common practice today to include Recommended Actions in FMEAs.
But what makes for excellent Recommended Actions and what is their role in an FMEA? We’ll begin with the fundamentals.
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Carl and Fred discussing the second step in achieving high reliability: “Develop a Reliability Gap Assessment.”
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Carl and Fred discussing the first step in achieving high reliability: “Develop a Reliability Strategic Vision.”
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Every FMEA team needs to prioritize risk as part of the procedure. Why? Because companies or organizations have limited resources that must be focused on highest risk. The question becomes, by what method should we prioritize the risk identified in an FMEA?
by Carl S. Carlson Leave a Comment
One of the more challenging aspects of FMEA is the subject of Occurrence. Part of every FMEA standard or procedure is the assessment of Occurrence based on an agreed-upon scale. Here are some pointers for when and how to use occurrence in an FMEA.
We’ll start with a definition. The Oxford English dictionary defines “occurrence” as “the fact or frequency of something happening.”
Carl and Fred discussing the broad subject of assumptions, and how they impact reliability analysis and applications. When are assumptions good and when are they questionable?
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by Carl S. Carlson Leave a Comment
Carl and Fred discussing a question received by an Inside FMEA reader on the subject of FMEA occurrence rating.
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