Your Reliability Engineering Professional Development Site
Kirk and Fred discuss the continued use of prediction models in reliability engineering, such as MIL-HDBK 217F or any other models based on the 217 which is last revised in 1995.
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Kirk and Fred discussing the benefits and limits of using HALT for finding issues with cables and connectors, and common cause for many failures or intermittent operation in electronic hardware.
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Apparently, my lovely wife is one of the best at finding stress testing limits of kitchen blenders, or we are unlucky at getting blenders that had some latent defect. She has discovered the destruct limit of 3 blenders within months of use. She does not do in the formal HALT methodology, as they break in what most would consider normal use conditions. It may have been a valid HALT evaluation if she had started with soft or easy to blend materials, starting with o ice or nuts and measured the time to reach its destruct limit. [Read more…]
Kirk and Fred discussing personal experiences in customer service and good and bad aspects of having an IPhone battery replaced.
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Kirk and Fred discussing the understanding of HALT and the fact that many see as HALT, the finding of operational limits and weaknesses, as “just another tool in the reliability engineering tool bag” and how for Kirk it is most efficient approach to reliability development.
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Kirk and Fred discussing the continued need to change much of the activities in reliability engineering in the goal of ensuring and improving the reliability of electronics and electro-mechanical systems.
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Kirk and Fred discuss the history of our Speaking of Reliability podcasts and the changes needed in approaches to reliability engineering and the need for leaders to continue practical and efficient reliability development.
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Kirk and Fred discussing how sometimes we get accustomed to a product starting to wear out when it is still functioning, and how long can we go without replacement.
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Kirk and Fred discussing comments we have received throughout the history of “Speaking of Reliability”. In this podcast we discuss one of the questions “should I calculate an average MTTR or MTBF ? “. We review the reasons that calculating an average time to or between failures does little to help make more reliable systems. ᐅ Play Episode
Kirk and Fred discussing the continued issue of how tough and robust does a product have to be or should be for their markets.
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Kirk and Fred discussing the big question is how robust should a product be to be “good enough” for use and occasional accidents?
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Kirk and Fred discussing the many causes and contributors to products failing after purchase. How do we know which factors are the largest contributor to causing failures?
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Kirk and Fred discussing the continued use of Reliability prediction and the very outdated government reference document, MIL HDBK 217.
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Reliability engineers have traditionally been asked to answer a common question during development of a new device or system, and that is “How long will it last?”.
It is the eternal question in equipment reliability development, and it really comes down to “that depends on many factors”. One question that needs to be asked is how long do you need it to, or should it last? [Read more…]
Kirk and Fred discussing the recent article Kirk and comments posted on LinkedIn regarding the estimated maintenance costs required for the F-35 Fighter Jet.
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