distributed networked remote fault prognostic
and diagnostic expert system for marine gas turbine is
introduced which can realize cross-regional, multi-expert
involved in collaborative decision-making mechanism. The
expert system includes four layers namely the field data
collection layer, the local condition monitoring layer, the network
communication layer and the long-distance expert supports
layer. The expert system uses artificial neural network to carry
out real-time fault prognostic analysis for the operational status
of key equipment to discover hidden or impending equipment
faults, so as to effectively avoid the occurrence of the “lack of
maintenance” and “excess maintenance”. The integration of fault
diagnosis mechanism based on rough set and artificial neural
network is used, which effectively solve the problems of typical
fault diagnosis for a long time and a high false alarm rate.
Finally, this paper describes the main characteristics and
application of expert system to the remote fault prognosis and
diagnosis of a gas turbine fuel system as an example for testing its
capabilities and main features