Digital Twin-based Production Simulation of Discrete Manufacturing Shop-floor for Onsite Performance Analysis

In order to drive production performance analysis of discrete manufacturing system, it has become a widespread concern to realize accurate and rapid mapping from physical shop-floors to virtual shop-floors considering the characteristics of online production. A digital twin model framework for production performance analysis is proposed and details the function of each module in physical space and virtual space. A simulation model mapping scheme for discrete manufacturing shop-floors is presented and a complete simulation model is divided into a data model, a logic model and a visualization model, where the whole process of model mapping and fusion is elaborated. The case study of mechanical parts manufacturing workshop is carried out and the results show that the effectiveness of the simulation model mapping method and timely production performance analysis based on real data.