WAYS OF OPTIMIZING THE PERIODICITY OF TECHNICAL SERVICE OF EQUIPMENT OF ELECTRIC DRIVE SYSTEMS
Journal Title: Збірник наукових праць Українського державного університету залізничного транспорту - Year 2018, Vol 181, Issue 15
Abstract
In the article it is shown that the optimal frequency of maintenance of systems of electric traction is determined by its reliability, as well as the average time spent on the performance of one maintenance (M). More reliable equipment should be serviced less frequently. In addition, the more time is spent on one service, one can deeply control the equipment and prevent more failures, and hence the maintenance period increases. Determination of the frequency of maintenance on the basis of the results of periodic control of the parameters of equipment and its elements allows you to determine the most expedient term of maintenance, as well as the elements used. A feature of standard methods for determining the frequency of maintenance is that they require the availability of certain statistical data on the operation of elements of equipment or equipment in general. This circumstance greatly complicates and increases the error of calculations, which is not unimportant factor in determining the methods of periodicity of maintenance. They also do not allow to judge the feasibility of carrying out maintenance on this particular equipment of electric traction systems. Unlike these methods, determining the frequency of maintenance based on the results of periodic monitoring of equipment parameters and its elements allows you to determine the most appropriate period of maintenance, as well as elements whose preventive replacement is most appropriate. Mathematical relations are obtained for the choice of periodicity of maintenance from the condition of maximum probability of detection of a malfunction. The algorithm of the sequence of the calculation of the optimal terms of the maintenance is developed. The mathematical description of the optimal value of the period between maintenance with the condition of the minimum value of the non-working condition factor is obtained. The method of the choice of periodicity of technical maintenance is offered from the condition of the minimum factor of the non-operating condition of the equipment.
Authors and Affiliations
Oleksandr Suprun, Yurii Semenenko, Stanislav Kuzmin, Vadym Domaratskyi
ANALYSIS OF SCHEME OF COMPENSATION OF REACTIVE POWER IN THE SYSTEM OF TRACTION POWER SUPPLY
The article analyzes the existing methods and systems of reactive power compensation in the traction power supply system. The problem of reactive power compensation has always occupied an important place in shaping the e...
PECULIARITY OF PROJECT AND CALCULATIОN OF SYMMETRIC SWITCHES FOR RAILWAY AND INDUSTRIAL TRANSPORT
Equilateral switch is switch with all elements are arranged symmetrically relative to the axis of the main path. Equilateral switches are widely used in marshalling-yard bays stations, because they work in cramped condit...
INFLUENCE OF SLAGS OF BOILERS WITH CIRCULATING FLUIDIZED BED ON FROST RESISTANCE OF CONCRETE
The results of the study of the influence of slags of boilers with a circulating fluidized bed on the frost resistance of heavy concrete are presented. In the studies was used fallowing materials: Portland cement PC I-50...
ANALYSIS OF ENERGY STORAGE IMPLEMENTATION ON THE METRO ROLLING STOCK
The application of various types of energy storages in the power supply system of metro is analyzed. The analysis of existing research determined that most prospects in the metro are electrochemical, inductive, capacitiv...
DEFINITION OF THE DUAL WEAR FEATURES OF THE BRAKE SHOES OF FREIGHT CARS
The work identifies the special character of the two-plane turning profile of brake pad wear, which takes place in a large number of brakes of modern freight wagons, for which the phenomenon was first discovered, and the...