An Approach for Process FMEA Based on Blackboard Structure and Semantics

Abstract

Nowadays, the mainstream researches of FMEA (Failure Mode Effect Analysis) are mostly about products, the few process FMEA researches often ignore the influences of single process failure on the whole manufacture process, or are just failure modes arranging without considering the further influence of process failure. So, in this article, we firstly build a process mode and process failure mode knowledge database using ontology in order to deal with the complicated production process knowledge. Secondly, we build a blackboard structure, which can use our ontology database and semantics to execute process FMEA automatically. Being exemplified by the analysis of a aircraft skin, the present study demonstrates that all approaches are feasible, efficient, and could be applied in real engineering scenarios.