Research of technical service enterprises for promoting equipment reliability (case study of agro-industrial complex of the Republic of Mordovia)

Introduction. Many planning solutions for the development of enterprise projects are partly defective. On the one hand, the solutions do not take into account the influence of many factors on building regulations; on the other, they ignore the relationship with the monitoring the technical state of objects in the process of maintenance and repair. The purpose of this study is to develop a system of models for promoting equipment reliability in the process of operation and maintenance at technical service enterprises to minimize construction costs and improve the reliability of equipment. Materials and Methods. Monitoring the situational plans of repair and maintenance bases of enterprises and their compliance with modern requirements was carried out using the public cadastral map of the Republic of Mordovia of 2018. Dependencies of the average resource and the operating time on the rejection of the re-planning factors for various types of control and diagnostic and repair work were calculated using the example of the transmission of GAZ-SAZ-3507, GAZ-SAZ-2506 and GAZ-SAZ-2504 agricultural trucks. In the process of research, a multifactor mathematical model and software developed on a PC have been developed. Results. To reduce construction costs of enterprises, a classification of building regulations for distances was developed. 1. In the range of 700-3,000 m: a) between units of equipment; b) between process equipment and various types of building elements. 2. In the range of 1,200-1,600 m with unilateral traffic of internal vehicles and 2,200-7,000 in the case of bilateral: a) the norms of the width of the driveways; b) the norms of the distances between two rows of equipment. Analysis of the dependencies showed that a decrease in the volume of control and diagnostic work (with a change in the redesign of the monitoring and diagnostic work of the КПК from 0 to 1.8) leads to a decrease in the time taken to eliminate the consequences of failure by 2.1 times, and the average pre-repair life - by 26 %. Reduction of the volume of preventive maintenance work (if the redevelopment factor of the repair work of the КПРК is changed from 0 to 4.2) leads to a decrease in the time taken to eliminate the consequences of a failure by a factor of 1.6, and the average dormant resource by 9 %. Optimal values of the = 0.55 are established; K"K = 1.05. Two main directions for development of projects of technical service enterprises were identified: 1) an increase in the scale and number of production zones and sites for outdoor truck wash, maintenance and diagnostics of complex equipment; 2) the development and placement of storage areas for agricultural machinery and logistics in a single production building that carries out various types of technical services. Conclusions. Researches of the process of re-planning of control and diagnostic and repair influences carried out with the help of a mathematical model confirms the effectiveness of their joint application at technical service enterprises, especially before the periods of using cars in the machine and tractor complexes. The results of the research are recommended for specialists in the field of equipment technical service.