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| Modelling for Complicated Assembly Line Based on Extended Petri Net |
| HE Lei, LI Tao, ZHANG Shijiong, TANG Jianjun |
| (AVIC Chengdu Aircraft Industrial (Group) Co., Ltd., Chengdu 610091, China) |
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Abstract Aiming at assembly process complexity and assembly line throughput prediction in aerospace industry, this paper proposed a novel assembly line modelling method that builds the physical-layer and logical-layer model separately, with extended Petri net models respectively. Based on this concept, this research further applies a modelling strategy which links the extended Petri net model of assembly line with discrete event simulation. This allows a discrete event simulation model to be used supporting assembly line throughput prediction under constraints of multi-conditions. This paper uses an aircraft assembly line as case study to implement the proposed modelling strategy and method in a discrete event simulation tool for throughput prediction. The results show that the proposed method is feasible and better at modelling the logic of assembly line operations, as well as the influence on assembly line throughput prediction under different resource configurations.
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2021, 
