How to Talk About MTBF
Abstract
Chris and Fred discuss the pointlessness of the MTBF. This comes from a listener who reached out to complain about how lots of industries enforce the MTBF … but why?
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SOR 802 How to Talk About MTBF
Search Results for: MTBF
307 – The Evil Ways of MTBF with Fred Schenkelberg
The Evil Ways of MTBF with Fred Schenkelberg
It’s my pleasure to welcome Fred Schenkelberg back to the podcast. He is a reliability engineer and management consultant.
In this episode we covered:
- What is MTBF?
- Why would people want to calculate what that average time between failure is or where did this come about?
- What do you think about using MTBF to monitor a complex systems reliability, and using that to pro proactively look at reviewing the maintenance program to it?
MTBF versus Useful Life
There’s a big difference between MTBF and Useful Life. The two values are often misunderstood and misapplied when assigning Preventive Maintenance task intervals. In this video, I’ll explain which one is used to assign intervals for Scheduled Replacement and Scheduled Restoration tasks. We’ll also discuss Operating Context and how that can affect Manufacturer Recommended Maintenance. This is an “edutainment” video. If you’d like to skip the fun stuff (although I don’t know why you’d want to ☺️), I’ve time stamped the Reliability Moments below. Enjoy!
Read moreSOR 699 Only have MTBFs
Only have MTBFs
Abstract
Chris and Fred discuss … MTBFs! Fred’s favorite! We (should) know that Mean Time Between Failure (MTBF) is not reliability. So what do we do if we somehow need to get reliability from nothing but the MTBF.
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SOR 688 When is MTBF OK?
When is MTBF OK?
Abstract
Chris and Fred discuss the MTBF … and if and when it can be used … sometimes in reliability engineering. We know that the MTBF is one of the most chronically overused (and misused) so-called ‘reliability’ metrics. But is there scope for it to be used … sometimes?
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SOR 611 Vendor MTBF Claim
Vendor MTBF Claim
Abstract
Philip and Fred discussing a listener question about how to verify vendor claims about reliability.
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SOR 591 MTBF, Reliability, and the Curve
MTBF, Reliability, and the Curve
Abstract
Kirk and Fred discussing how testing a small sample size of a new product results on a larger margin of error for the larger population.
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What to Do About MTBF Use
What to Do About MTBF Use
podcast episode with speaker Fred Schenkelberg
While the NoMTBF movement is progressing, we still find those who want to use MTBF (or MTTF). As you know, MTxx-type metrics are means. They contain little information and are generally misunderstood and misused. So, what should a well-educated practitioner do? [Read more…]
What to Do About MTBF Use
An Accendo Reliability recorded webinar event
While the NoMTBF movement is progressing, we still find those who want to use MTBF (or MTTF). As you know, MTxx-type metrics are means. They contain little information and are generally misunderstood and misused. So, what should a well-educated practitioner do?
[Read more…]MTBF of a Human
“What’s the MTBF of a Human?” That’s a bit of a strange question? I ask this question in my Reliability 101 course. Why ask such a weird question? I’ll tell you why. Because MTBF is the worst, most confusing, crappy metric used in the reliability discipline. Ok maybe that is a smidge harsh, it does have good intentions. But the amount of damage that has been done by the misunderstanding it has caused is horrendous. MTBF stands for “Mean Time Between Failure.” It is the inverse of failure rate. An MTBF of 100,000 hrs/failure is a failure rate of 1/100,000 fails/hr = .00001 fails/hr. Those are numbers, what does that look like in operation? [Read more…]
SOR 504 Eradication of MTBF
SOR 504 Eradication of MTBF
Abstract
Fred discussing just how bad MTBF and related measures are for our profession.
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What You Need to Know About MTBF
An Accendo Reliability recorded webinar event
MTBF stands for ‘mean time between failure.’ This sounds intuitively easy to understand. But … if you haven’t taken the time to understand MTBF, and your organization relies on the reliability of its products, you are almost certainly in trouble.
[Read more…]RRP 061 Why You Shouldn’t Rely on MTBF with Fred Schenkelberg
RRP 061 Why You Shouldn’t Rely on MTBF with Fred Schenkelberg
This week, I welcome Fred Schenkelberg back to the show to talk about mean time between failures and the basics of reliability math. Long story short, I hope you’re not using MTBF as a proxy for reliability!
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Finally, if there are any topics, guests you’d like to hear from, questions you want answered, or if you’d like to appear on the podcast, email me at robsreliabilityproject@gmail.com
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What You Need to Know About MTBF
What You Need to Know About MTBF
podcast episode with speaker Chris Jackson
MTBF stands for ‘mean time between failure.’ This sounds intuitively easy to understand. But … if you haven’t taken the time to understand MTBF, and your organization relies on the reliability of its products, you are almost certainly in trouble. [Read more…]
SOR 422 What Do I Do When the MTBF is Imposed on Me?
What Do I Do When MTBF is Imposed?
Abstract
Chris and Fred discuss what happens when you can’t avoid having the MTBF imposed upon you – even if it is your own organization and not the customer. Perhaps you are told that ‘our competitors quote the MTBF … so we have to as well!’ But you can (sneakily) tailor test data to get whatever MTBF you want. You can make life easy on yourself by not challenging this paradigm (noting that you will most likely get an unhappy customer). But it is almost impossible to apportion MTBF goals to individual designers that even allow the motivated ones to create a reliable system. So what do you do? Listen to this podcast to help you on your reliability journey.
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