Simulation and analysis of the qualitative indicators of functioning of automated mixed structure machine systems

Abstract

Problem. Today there is a need to improve existing and develop new methods of simulation and analysis of quantitative and qualitative indicators of the efficiency of automated lines in conditions of stochastic uncertainty of varying duration of technological processes on machines and optimizing the structure and parameters of automated machine systems. Goal. The goal of the task is to study qualitative indicators of the functioning of automated mixed structure lines with flexible aggregation of machines and random nature of the duration of technological process. Methodology. A simulation model was developed, the operation of the automated machine system was simulated in the conditions of stochastic uncertainty of variation in the time intervals of workpiece processing, statistical data was obtained for the synthesis of mathematical relation of the main indicators of the functioning of the main and accessory equipment. Results. The results of the study of the influence of the number of technological sites and machines working in parallel on them, the stability characteristic of the technological operation and the capacity of interoperation buffer devices on the load factors of the machines and the imposed losses of their working time are presented. Originality. The research was carried out taking into account the random influence of disturbing factors on quality performance indicators of automated lines, and its result makes it possible to reduce the loss of working time and productivity of machine systems during the processing of workpieces and manufacture of products. Practical value. The generated analytical models and obtained research results can be used during the quantitative and qualitative analysis of functioning of automated machine systems with mixed aggregation of machines, optimization of their structures and parameters, and design of new automated lines.