FMEAs and Percentage Reduction in Failures
Abstract
Chris and Carl ask each other … by how much do FMEAs improve reliability? … or reduce failure?
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Chris and Carl ask each other … by how much do FMEAs improve reliability? … or reduce failure?
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Chris and Fred ask each other ‘what makes a good design review?’ This is a great question. Reliability engineering can help! (… click here to read an article about this). If you want to learn more – listen to this podcast!
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Chris and Fred discuss the difference between ‘making’ and ‘checking’ reliability. And there is a difference. This podcast follows on from Chris’s article about a US Department of Defense (DoD) quick reference guide on a ‘Reliability and Maintainability Engineering Body of Knowledge.’ The problem with this document was it was all about ‘checking’ reliability – and not enough ‘making’ reliability.
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Chris and Fred discuss this thing called ‘Wright’s Law’ which is a really fascinating way of describing how things improve as we create more of them. And why is this relevant for reliability engineering? Does ‘reliability growth’ ring a bell?
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Chris and Fred discuss how important maintenance culture is – especially when it comes to safety-critical systems. Like ‘cable cars’ used to transport people up ski slopes. But unfortunately (like the recent accident that occurred in Italy that resulted in 14 deaths) toxic maintenance culture can lead to disastrous consequences. And this tends to happen across the world on a regular basis. Why does this happen?
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Chris and Fred discuss what ‘distribution parameters’ mean when it comes to random processes. Specifically failure random processes. This is an interesting podcast in response to a question from one of our listeners – which are podcasts we love!
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Chris and Fred discuss the different words we often use (and misuse) in reliability engineering. ‘Reliability’ has been used for hundreds of years to describe different concepts of ruggedness, robustness, strength, timeliness, trustworthiness and so on. But – reliability has a specific definition within reliability engineering. There are plenty of other examples of how words we use in reliability engineering can have multiple meanings – even when we think they don’t!
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Chris and Fred discuss accelerated testing – and how we come up with acceleration factors. Accelerated testing is great! It allows us to compress an entire lifecycle into a short test duration for us to quickly understand the reliability characteristics of our system … ONLY if we know what we are doing. Keen to learn more?
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Chris and Fred discuss what it means to focus on ‘effort’ instead of ‘outcomes.’ We often think we focus on outcomes only … but how many people ‘get by’ simply by being ‘seen’ around the office, looking busy when there, and otherwise being friendly to everyone? They always volunteer to be part of a team, do some of the ‘less glamorous’ tasks, and otherwise be ‘part of something.’ But is this person actually valuable? (… harsh as the question sounds).
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Chris and Fred discussing the 3 perspectives of Fault Tree Analysis or FTA. What … there are 3 perspectives? … what are perspectives when it comes to FTA?
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Chris and Fred discuss ‘proactive’ reliability engineering … and trying to get out of being ‘reactive.’ Some entire organizations are structure around waiting for the catastrophe to happen before we fix it. So changing perspectives can be challenging.
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Chris and Fred discuss how reliability starts at the top of every organization. And by that, we mean … leadership. What does that mean? How can the CEO be more important for reliability performance than the reliability engineer with decades of experience and post-graduate qualifications?
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Chris and Fred discuss (essentially) how many ‘things’ you need to see to know enough about those ‘things.’ We see this conundrum across all sorts of fields of study. How many kangaroos do I need to capture and weigh to get a good understanding of the entire population’s typical weight? Delete kangaroo and insert whatever thing matters to you.
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Chris and Fred discuss accelerated testing. Accelerated testing is great for getting lots of information in a short period of time. You can compress a lot of ‘real-time’ life into a really small amount of testing. But how do you do it right? You need to understand the underlying physics of failure to work out how the compression of time works.
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Chris and Fred discuss what it means to be ‘deterministic’ versus ‘probabilistic’ … and what that means for reliability engineering. Know what these words mean and want to learn more? Don’t know what these words mean and want to understand how they could help reliability engineering? Listen to this podcast.
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