If we're not careful with or ignore failure modes, we can choose the wrong reliability model or statistical distribution. If our product performance is close to the required limits and/or we need a very accurate model, this could be a big problem.
We talk about the importance of failure modes and step-through a tensile-test example to explore these other topics:
- competing failure modes
- independent vs. dependent
- reliability block diagrams
We got into some mathematical concepts. But, the main take-aways are this:
- Ensure the reports you write and approve always discuss the failure modes. They're an important part of the results (not just the numbers).
- Be aware and watch out for competing failure modes and realize that they can affect the statistical models we apply and the conclusions we make from our data.
- Reliability engineers are a resource that can be tapped for complex failure modes.
Once you've had a chance to listen, I want to hear from you. What has been your experience with reliability block diagrams? Have you ever used one?