III. Reliability in Design and Development
B. Parts and systems management
4. Establishing specifications (Create)
Develop metrics for reliability, maintainability, and serviceability (e.g., MTBF, MTBR, MTBUMA, service interval) for product specifications.
Additional References
SOR 044 Reliability Targets and Technical Specifications (podcast)
Reliability Specifications and Requirements (article)
Quick Quiz
1-90. Establishing a reliability specification requires which of the following?
(A) knowledge of the usage environment
(B) a mathematical model
(C) a robust design
(D) a reliability policy
A) knowledge of the usage environment
There are four elements to a reliability specification, the function, the environment which includes useage, the probability of successful operation, and a duration. I personal do not like MTBF as it is only the inverse of a failure rate and alone provides little useful information.
Derating methods and principles video is not uploaded correctly. It keeps showing previous one. Please check.
Hi Sayta, you’re right, the core of the lesson is a copy of the previous lesson. I’ve editing the proper lesson into the video and it should replace the existing one shortly. thanks for letting me know. cheers, Fred