Rational maintenance of the use of technics

Abstract

Abstract The priority area of engineering activities to ensure the operability of machines and reduce the intensity of their wear is currently maintenance. Modern and high-quality performance of this work allows you to reduce by 30 … 35% just during repair, for technical reasons, by 25 … 30% to reduce the consumption of spare parts, by 18-20% of fuel and lubricants during the operation of the machine and tractor fleet. However, observations show that the impact of maintenance on the productivity of the machine and tractor fleet has noticeably decreased in recent years. Practically the only way to determine reliability, durability and wear resistance is testing. Even those few researchers who develop analytical methods for calculating these characteristics are forced to rely on empirically obtained data. The existing methods of operational testing do not provide objective information about the reliability, durability and wear resistance of machines. The article provides a research methodology that is carried out according to the quantitative characteristics of the reliability of elements. Reliability is quantitatively determined by the likelihood of completing the task on time with the appropriate quality of work. Then we determine the failure rate, which shows what fraction of the total number of parts fails during the considered period of time. Thus, it can be noted that reliability is an important indicator, but not sufficient for a complete characterization. The machine must be evaluated for maintainability and durability.