Abstract
The study presents a method for application of the theory Markov homogenous processes for modeling of the process of vehicle operational state changes characterized by exponential distribution of their duration time. A model of operation and maintenance of vehicles used in the research object has been developed. The research object is a city bus transport system situated in the analyzed agglomeration. Stochastic process {X(t), t = 0} is a mathematical model of the process of operation and maintenance of public transport buses. The analyzed stochastic process {X(t),t = 0} has a finite phase space S, S={S1, S2, ..., Sn}. It was assumed that operation of the model is to be described by the homogeneous Markov process {X(t) : t ? R+} with a finite set of S states. The states of the analyzed stochastic process correspond to the operational states distinguished for a bus. A hypothetical computing model was built in order to illustrate the discussion and present a method for application of the developed model. The parameters of the model were estimated based on the analysis of initial results of experimental tests conducted in a real bus transport system.
Highlights
Operation and maintenance of transport means is accompanied with different events whose effects have an impact on the processes of their operation and maintenance, as well as the economic effect worked out by the transport company
Technical objects used in a technical system undergo different operational states which make up the state space [1,2,3]
Operation efficiency of city transport systems and operated by them transport means can be analyzed in terms of economy and technology [1, 7,8,9]
Summary
Operation and maintenance of transport means is accompanied with different events whose effects have an impact on the processes of their operation and maintenance, as well as the economic effect worked out by the transport company. In order to determine the values of technical and economic measures for technical objects used in complex technical systems including city bus transport systems, such as reliability indices, it is necessary to obtain and process information on the subject of vehicle operation and maintenance For this purpose, it is necessary to carry out experiments in a real system of technical object operation and maintenance [1,2,3, 7,8, 9, 15,16, 18,19,20,21]. An analysis of models of operation and maintenance processes and systems allows to take up rational actions to improve reliability and safety of technical objects Both analytic and simulation methods are used to analyze the processes of an object state changes including those connected with occurrence of failure in random time moments. 19th International Conference Diagnostics of Machines and Vehicles systems can provide the basis for decision makers to take rational decisions that would increase efficiency of the system operations [1]
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