Study on Safety Risk Assessment Expert System in Petrochemical Industry Based on Fault Tree

In this paper, we design a safety risk assessment expert system (SRAES) in petrochemical industry based on fault tree (FT). The expert knowledge is acquired through fault tree analysis (FTA) and stored in a knowledge base (KB) of the expert system. We adopt a rule and framework based reasoning (RFBR) method which is intuitive and conforms to the human thinking customary. This system will figure out two main difficulties, that is, hard to acquire system knowledge and how to construct a high efficient reasoning mechanism. It can realize the safety risk assessment (SRA) of dangerous and harmful factors of the engineering in the petrochemical industry in theory, and improve efficiency and accuracy of the SRA.