Determination of reliability of working position with rigid inter-aggregate relation

Abstract

Machine-building enterprises implement the methods of operative transition from one nomenclature of production to another for preservation of competitiveness. The strategy of scientific and technological development of Russian Federation reflects this aspect in the form of one of the priorities: digitalization. One of the most time-consuming processes is the reconfiguration of automatic mass production lines. These lines consist of a number of working positions. The relation between units in mass production is rigid and inter-operational reserves are absent. Stopping one unit is equivalent to stopping the whole line. Therefore, the task of the time estimation of line’s operability of this type is relevant. The task is complex and requires consideration of many factors. This article presents a constructive scheme for reliability. The calculation of work and reliability indicators are carried out. The calculation of the reliability of positions with rigid inter-aggregate relation made it possible to obtain reliability indicators for the second line of development of recomposed work positions with automatic change of nodes. In this case, the rigid relation is not violated. In this calculation the probability of failure due to the simplicity the proposed nodes design was not taken into account.