Your Reliability Engineering Professional Development Site
Let's have in depth discussion during the live monthly webinar series. Reliability Engineering Basics, Statistics, Accelerated Testing, Program Assessment and Improvement. Catch up or review past events below.
To attend an upcoming live event visit the Live Events section of the site which lists the available upcoming webinars.
Find one that looks interesting and register for the event. You will receive login directions and reminders prior to the event. Plus you will be able to join the discussion during the event.
Not every discussion about reliability goes well. Some conversations make it obvious reliability is an afterthought or considered a barrier to creating and shipping products. Other conversations seem to support reliability work, yet really are little more than lip service. And, then there are meaningful conversations that improve the reliability culture within the organization. [Read more…]
If nothing changes, then nothing changes. Change happens when we decide to do something. The status quo remains if we decide to do nothing. We make decisions every day. We do it so often that it might seem like a trivial thing to do. But we so often get it wrong. We might be influenced by emotion, prejudice, time pressure, budgetary stress, or ‘mental comfort.’ [Read more…]
DFR has been a term in and out of fashion for some time. One of the many DFX type programs. DFR, unlike some of the other Design for X programs has to exist within the overall culture of the organization to be successful. The premise that design occurs at the point of decision implies that each design may have the appropriate information to properly consider the decision’s impact on reliability performance. [Read more…]
Everyone knows why we do reliability, and reliability things like FMEAs. Customer experience. Organization reputation. Reduced warranty claims 10 years from now. But these are boring reasons that really don’t motivate me to take FMEAs seriously now. Why should I invest so much time into an activity where that benefits the ‘company’ or the ‘customer’ in the future but won’t make an immediate difference where my boss will give me a ‘gold star’ on my next performance appraisal? Right? Wrong! [Read more…]
The more you understand the failure mechanisms the easier it is to design an accelerated life test, (ALT). Yet, we often do not have all the information we would like to draft an ALT. So, what do we do then?
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There are so many books on leadership, management, more leadership, reliability, quality, customer first, even more leadership, et cetera. But there remains a common refrain I hear repeatedly from reliability engineers struggling to make a difference: ‘reliability is just not relevant to my organization.’ There is a common thread to this common refrain – we only hear it from people who work in organizations that don’t have a clear understanding of ‘why’ they are doing what they do.
Reliability engineers LOVE Weibull plots. They often make sense out of a bunch of seemingly random points. Or at least we feel like they make sense. Anything that turns a bunch of random points into a straight line is automatically making sense … right? Wrong. It is up to us as reliability engineers to look at Weibull plots and work out what is going on. [Read more…]
When conducting an accelerated life test it is essential to carefully consider the acceleration factor (AF). Like warp drives shortening distance, accelerated life tests (ALT) attempt to shorten time. Think warp factor and acceleration factor as being similar, well sort of. [Read more…]
We all know that all you need to work out how many spare parts you need is to put some numbers into a computer, perhaps throw in a ‘confidence’ level as well, and use the number that computer spits back out at you. Right? [Read more…]
We can make a guess, some assumptions, or conduct an experiment. In fact, we use engineering judgment, prudent assumptions to create our experiments that lead to understanding time to failure information. Accelerated life testing, ALT, is one of the most complex and important types of experiments we conduct. It involves samples, failure mechanisms, stress, measurements, and statistics. [Read more…]
One of the things I like about reliability engineering is the field has a stable set of tools and approaches, with an ever-changing set of challenges. The process to conduct an FMEA or Root Cause Analysis hasn’t changed much over time. Meanwhile the advent of new designs, new materials, new assembly techniques, along with higher customer expectations, we continue to face interesting problems. [Read more…]
This is the fourth in our webinar series ‘Reliability Analysis … now what?’ We have examined how to turn a bunch of data points (like the different failure points of devices under test) into something simple, useful, and sometimes beautiful! This is something that commercial software can’t do. [Read more…]
Risk is uncertainty. Will this work? How will this item fail? Is it safe? Risk is not limited to product failure as it includes brand topics such as market acceptance, regulatory approval, supply chain stability, international conflicts, and more. Reliability engineering tends to focus on product failure to perform as expected and we have to fit into the large context of risks facing any product or system. [Read more…]
This is the third in our webinar series ‘Reliability Analysis … now what?’ The first webinar showed what it actually means to turn reliability data into something that a decision maker can use. Not a chart. Not a graph. Not a ‘p’ value. Not anything else that you find in a textbook but isn’t useful. Last month’s webinar talked about how the best way to do this is to use computers … but in an easy way! And we talked about how we create a ‘posse’ of possible ‘ways’ we can explain the data we see. And this webinar is about how we use this thing called Markov Chain Monte Carlo Simulation (MCMC) to create this ‘posse.’ And the ‘posse’ isn’t random … it is based on the ‘likelihood’ of each on being the correct one. Which is how MCMC works. [Read more…]
The goal of this presentation is to educate the audience of options to prevent electronic equipment failure used in enclosed spaces from corrosion through preventative maintenance practices. As most know, the metals used in today’s electronics are processed but want to turn back to its original state as the iron components will oxidize, and the corrosion process begins. The addition of humidity, vibration, temperature swings, and acid environments (such as being in a tire plant or downwind from a refinery) will accelerate the process. It is this corrosion and subsequent weakening or disfiguring of the metal that causes malfunctions and failures [Read more…]