Читать книгу System Reliability Theory - Marvin Rausand - Страница 120

Even if we are able to identify all the required functions of an item, we may not be able to identify all the potential failures. This is because each function may fail in several different ways. No formal procedure seems to exist that help us to identify and classify all the potential failures.

In this section, we consider a specific item within its boundary in its intended operating context. Failure is, in many applications, a complicated and confusing concept. We try to shed some light on this concept and start by defining failure of an item as: