Aiming at the complexity of the facilities scheduling in the aircraft assembly process

a new method to build equipment scheduling model based on extended Petri net is proposed. The definition process and modeling methods of this model are discussed by considering the characteristics of aircraft assembly process. The model is based on the objectoriented Petri net to express the aircraft assembly process

which is related to the auxiliary equipment by timed Petri net

and it is optimized by the hybrid algorithm with the time and equipment utilization. The fuselage assembly process of a certain airliner is taken as an example to build the model and dispatch

and the experimental results show that the method has great guiding significance to the actual assembly equipment scheduling.