КОНЦЕПЦІЯ СТВОРЕННЯ МОДЕЛІ ЦИФРОВОГО ДВІЙНИКА ІНТЕЛЕКТУАЛЬНОГО ШПИНДЕЛЬНОГО ВУЗЛА

Abstract

The digital twin technology isthe basis for the implementation of a cyber-physical technological system and is the core technol-ogy of Industry 4.0. A digital twin of a spindle unit is a dynamic virtual model that connects the spindle unit as a real physical object with its digital model in real time via two-way information links and reflects all the features of its design and functioning during its life cycle in real time. The key component of the digital twin of the spindle unit is its model, which is a set of digital models that describe its design, technological, operational, parameters and physical and mechanical processes that occur during the operation of the spin-dle unit and reflect the impact of these parameters on the quality and efficiency of its functioning during the life cycle in real time. Therefore, the paper considers the concept of creating a model of a digital twin of a spindle unit.The introductory part of the article formulates the issues and relevance and analyzes the works that propose approaches to the creation ofdigital twins, in particular, their models. In the main part of the paper, we first propose definitions of the terms digital twin of a spindle unit and its model. The conceptual structure of the digital twin of the spindle unit is presented. A list of characteristics of the model of the digital twin of the spindle unit is defined. The structure of the model of the digital twin of the intelligent spindle unit is determined and the stages of its model creation are given, the tasks to be solved at these stages are specified.It is shown that building a model of a digital twin of a spindle unit has a two-directional character and cannot be con-sidered a fully completed process, since the model of a digital twin of a spindle unit will be constantly refined and updated until the spindle unit is out of service. It is noted that when creating a model of a digital twin of a spindle unit, it is necessary to consider in detail the following key issues: high-precision modeling, model integration, model verification, model con-sistency, mechanisms of functioning and evolution of models.In the conclusions, attention is paid to the unresolved problematic issues that currently exist in the implementation of the model of a digital twin of a spindle unit. The generalized concept of creating a model of a digital twin of an intelligent spindle unit presented in this paper will allow further specifying the content of the stages of creating a digital twin of a spindle unit and forming a methodology for its creation.