Abstract:

An intelligent system for Failure Mode and Effect Analysis (FMEA) where the neural network and expert system are applied was introduced in this paper. At first, the structure and relationship of each element and the function procedure were discussed. And then, the FMEA reasoning models were described in detail. The products failure model selecting reasoning model was established by applying the rule based production system model. Using the neural network and its extended technique, the FMEA reasoning model was established. In the model, the activating rule of the nerve cell was a set of many output functions, and this network was a hierarchical and nested network in which each product is a sub network. It can not only express the product hierarchy but also describe the failure model effect relationship.

Key words: failure mode, reliability, artificial intelligence, expert system, neural network