Abstract
Relevance. The questions of functional reliability efficiency increase maintenance railway automatics system are considered in the article. This is an important scientific and technical task, the solution of which will improve the technological process of transportation with maximum efficiency and safety of train traffic.The purpose are to analyze observations of the failures of the elements of the railway automatics system of the «Odessa Railway» Regional Branch of JSC “Ukrzaliznytsia” for the period from 2011 to 2015 years, to compare and define of qualitative cause-effect relationships between failures and their structure for the given distance to improve maintenance.Practical value. The main causes of the elements failures of railway automatics system are determined. The highest percentage of failures from all devices of railway automatics has track circuits (40.81 %) and control equipment (25.81 %). Predicting failures process of railway automatics elements based on the mathematical model of a complex system, performing regular repair works and introducing modern additional diagnostics and preventive actions will create the possibility of transition from planned preventive techniques to maintenance of railway automatics devices on requirement.Scientific novelty. A mathematical model of the failures process of railway automatics elements is proposed as a complex system based on passive observations.Results. On the basis of the developed structure of the mathematical model, a means of simplifying the management of the railway automatics devices maintenance system is proposed by the separation of subsystems: supports; signals; control equipment; switch pointers and electric drives; power supply systems. Improving operational coefficients of rail automatics elements can be achieved by the introduction of additional maintenance techniques and repair works for the track circuits, apparatuses, cable lines, protection devices and equipment of relay cabinets.
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