Research on Delay Propagation Law of Aviation Equipment Job Shop

The aviation equipment system has a huge structure, complex process flow, multiple coordination and supporting links, and high requirements for complete sets of materials. Affected by random disturbance factors, the delay of a certain component will postpone multiple subsequent assembly processes, resulting in the multiple increase of the final product delivery time. For the job shop in the aviation equipment system, this paper studies the influence of the process delay caused by the random disturbance on the whole system. Using Petri net theory, based on the relationship between processes and the delay propagation unit, in accordance with the spatial sequence of delay propa-gation, the process delay propagation law is analyzed from the three levels within delay propagation unit, between delay propagation unit and in delay propagation network. The proposed method provides the theory for quantifying the effect of delayed propagation in the aviation equipment system, which helps to further refine the control of the production process of the aviation equipment system.