Simulation of changes in the steady state availability factor of shunting locomotives for various maintenance systems
DOI:
https://doi.org/10.15587/1729-4061.2016.60640Keywords:
shunting locomotives, maintenance system, steady state availability factor, locomotives, availability functionAbstract
The changes in the steady state availability factor of shunting locomotives depending on maintenance factors are determined. Based on the existing approach to determining the steady state availability factor and the accepted system of scheduled preventive maintenance of shunting locomotives, the model that allows the computations with the possibility of changing various parameters is developed. This model is a mathematical description of the steady state availability factor of shunting locomotives taking into account the structure of the maintenance and repair system adopted in Ukraine.
On the basis of the model developed, which was implemented in the MATLAB software environment, the simulation of changes in the steady state availability factor depending on the maintenance and repair system, fueling strategy, life extension, mean operating time to unscheduled repair and downtime is conducted.
Upon the simulation results, mathematical dependences of changes in the steady state availability factor on the parameters of unscheduled repairs (mean operating time to unscheduled repair and downtime) are obtained. They are the second-degree polynomials. From the structure of equations and the values of factors obtained, it is concluded about the similar effect of unscheduled repair parameters on the steady state availability factor of various maintenance strategies.
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Copyright (c) 2016 Анатолій Петрович Фалендиш, Андрій Леонідович Сумцов, Олександр Вікторович Артеменко, Ольга Віталіївна Клецька
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