Development of a digital twin of the production system on the basis of modern digital technologies

Nowadays, most enterprises around the world are in the process of transition to the concept of Industry 4.0. First of all, they should choose the way/ways (concept/concepts) out of six concepts of Industry 4.0. In this article two of them were discussed: PLM and SMART Factory, because they are connected with the notion of «digital twin» (set of computer models, which allows to design virtually, test and optimize parts, products and processes or entire production systems), which is the basis for considering the definition of a «digital production system». By using «digital twin» the inextricable connection is created between material and virtual (digital) objects, which means «digital dualism», the usage of «digital twin» is impossible without understanding of this connection. It is presented that «digital twin» is a way of optimization and material management of enterprise at the stage of manufacturing products. In this case, the basic software may be the production system MES. It has also been proved that in the transition to a new concept, the need to consider all the company’s business processes with their subsequent optimization becomes inevitable. The optimization process includes the following steps: planning, redesign, resource mobilization, testing, implementation, continuous improvement. As examples of the successful use of the digital twin, the implementation of PJSC Gazprom Neft and Alstom is given, which confirms the need to move to the Industry 4.0 concept to reduce repair costs, reduce information time, reduce the number of defects, etc.