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by nomtbf Leave a Comment

The MTBF Estimation Wizard

The MTBF Estimation Wizard

Get Your MTBF Estimation Here

MTBF is a magic method for predicting time to failure for your new design. On this page we present to you the fastest way to achieving MTBF.

Maybe The Best Function ever!

Zoltar says that your design has an MTBF of:

[arandomnumber min=1.5 max=10000] years

If you don’t like this number, Zoltar can give you another. Just click here: 

or try

which may work on your browser.

Note: This function was released on April 1st, 2009. Have Fun!


This method of MTBF estimation is as good or quite possibly better than others in common use. I trust Zoltar will serve your well.

A few years ago a clever reliability engineer create this bit of code for an internal company site.

The intent is to encourage discussion about reliability and improving product reliability performance. The idea is to help those in the organization looking for a quick estimate of MTBF find one. Then the team could engage with them to determine the actual reliability questions and help provide answers.

Estimating, or calculating, or predicting, MTBF is rather a pointless exercise. So, if all you need a number, ask Zoltar. If you want to understand the reliability of your system, well that is not found by looking for MTBF.

How do you encourage your teams and industry to avoid looking for just the MTBF number? Add you thoughts and ideas in the comments below.

Filed Under: Articles, NoMTBF

« The Top 5 Tips to Implementing a Successful Maintenance Planning & Scheduling Process
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Comments

  1. Michael Dashuta says

    April 12, 2017 at 1:47 PM

    Fred,
    The link is generating a warning message: “Microsoft Office has identified a potential security concern” could please give the actual URL?
    What is expected to happen upon connecting following the link?

    Thank you,

    Michael

    Reply
    • Fred Schenkelberg says

      April 12, 2017 at 1:55 PM

      HI Michael, it’s a random number generating java script. MS appear to not like scripts in a post… not sure how widespread that is, so thanks for letting me know.

      Reply
    • Fred Schenkelberg says

      April 13, 2017 at 9:46 AM

      my first attempt to hook up the wizard used Java scripts, which triggers alerts with a few browsers. Moving to html only solution and it now doesn’t work on all browsers… more work to get this working for all. In the meantime, just pick your favorite value and go with that. cheers, Fred

      Reply
  2. WILLIAM THORLAY says

    April 12, 2017 at 2:40 PM

    Fred,

    I just clicked “I feel lucky!” but, nothing happened. What is the trick?

    Reply
    • Fred Schenkelberg says

      April 12, 2017 at 2:44 PM

      I updated the scripts behind the post and it should be working now.

      The I feel lucky button just refreshes the screen which reruns the MTBF Estimation function.

      Cheers,

      Fred

      Reply
    • Fred Schenkelberg says

      April 13, 2017 at 9:44 AM

      Hi William, it appears that on certain browsers the refresh doesn’t reset the wizard properly, so I’m off into HTML land to sort out a way to help the wizard properly think about the chance to rethink the problem. cheers Fred

      Reply
  3. Tim Gaens says

    April 13, 2017 at 3:26 PM

    Remove the 1st of April reference and I can possible convince some managers this is the correct way of doing MTBF.
    Just add the possibility to get a higher random number.

    Reply
    • Fred Schenkelberg says

      April 13, 2017 at 4:20 PM

      The unfortunate part is many really believe MTBF isn’t a random number most of the time. cheers, Fred

      Reply
  4. Fred Schenkelberg says

    April 14, 2017 at 10:10 AM

    A comment on Linkedin include a link to a wonderful writeup on replacing Mil-Hdbk-217

    https://www.electronics-cooling.com/2004/05/nostradamitech/amp/

    check it out, well written and rather thought provoking, too.

    Cheers,

    Fred

    Reply
  5. Johannes Dissing says

    April 26, 2017 at 2:19 PM

    I made this, You got. it. from Thomas some time ago right?
    http://nomtbf.com/2013/01/grundfos-mtbf-policy/

    Johannes

    Reply
    • Fred Schenkelberg says

      April 26, 2017 at 2:29 PM

      HI Johannes, yes Thomas sent it over and now we even have a working version on the site – great work and story you have with it. Thanks, Fred

      Reply

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