Modeling and simulation of auto parts production line based on petri net

Abstract

The production efficiency of small and medium auto parts manufacturing enterprises has been restricted by unreasonable production processes arrangement, high equipment load rate, high quantity of work in process (WIP), etc. To cope with these problems, this paper proposes a novel modeling method to analyze production line. The production line model is established by the method that combination of object-oriented Petri net (OOPN) and time transitions. Then the proposed model is validated based on incidence matrix and state equation analysis method, by which the bottleneck of the production line is identified. Simulation results are provided to validate that the proposed method can accurately reflect the production process and the bottleneck.