The lognormal distribution has two parameters, μ and σ. These are not the same as mean and standard deviation, which is the subject of another post, yet they do describe the distribution, including the reliability function. Continue reading
A reliability block diagram (RBD) for a product that has no redundancy or complex use profile, is often very simple. A series system (reliability wise) implies that any one part or element of the product that fails the entire product fails. One might ask if an RBD is even necessary. Continue reading
I’ve learned a lot in my career and have attempted to help others to the best of my ability. Teaching is fun. It is also enjoyable to know a little of what I’ve learned from others may continue to be passed along.
The CRE exam is a milestone in a reliability engineers career. Not an end, nor a beginning, just a milestone to mark the achievement. The CRE BOK encompasses a broad range of concepts and tools. Passing the exam marks the person as having mastered the body of knowledge as laid out in the CRE BOK. Continue reading
CRE preparation notes