Research on fault mechanism modeling method of virtual maintenance training equipment system

Aiming at the difficulty of fault simulation in virtual maintenance training system, on the basis of studying the mechanism of fault generation, a fault model composed of maintenance object, fault source, fault phenomenon, fault propagation digraph and detection point is established by using object-oriented method, and the simulation of fault characteristic signal and fault phenomenon in virtual environment and the simulation operation flow are studied. The Virtools is used to realize the simulation. Now the modeling and Simulation of typical faults of equipment system is completed, and the real-time generation of fault phenomena and data is completed.