Simulation Model of Maintenance Support System's Efficiency Based on Petri-net

Based on analyzing the characteristic of the maintenance support system, considering the requirement and authenticity, the maintenance support system was to be simplified, the efficiency of system was analyzed, and then the simulation model of the maintenance support system's efficiency was constructed applying Petri-net and its software ExSpect. Finally, an example was probed to validate the correctness and the usability of simulation model.