Who cares about field failure data? Why are we even here?
The fundamental concepts from our functional safety standards are the probabilistic performance based design. Many of you know that this was terribly controversial when this was first proposed. Even to this day, there…
2013 was a good year for functional safety progress. exida Certification issued a record number of new product functional safety certifications in mostly every product category - valves, actuators, solenoid valves, PLCs, fire and gas sensors, process sensors, and components. The component category is one of the most…
Over the course of several blogs , I will talk about getting realistic failure rate data, where this failure data comes from, and how different methods of failure data analysis compare. I think if you understand this, you will begin to get a very good feel of what it…
Failure data collection can seem tedious, time consuming and expensive. Just figuring out what data to collect can be challenging. Failure data analysis can be overwhelming with a sense of “I don’t even know where to begin.” So it is not surprising that these useful, vital activities are often neglected especially when…
Root Cause Analysis - finding out what happens when a failure occurs, and why it happened in the first place. There are many reasons for root cause analysis. The “system” design can be improved to prevent some of the failures from happening again and those who troubleshoot can do…
In this blog, I will talk about the FMEDA method and how it can generate realistically accurate failure rate data.
The first question we have to ask is “why do you need failure rate data ?”
One of the fundamental concepts in today’s functional safety standard, IEC 61508 and…