METHODOLOGICAL FUNDAMENTALS OF DETERMINATION OF UNPOWERED ROLLING STOCK MAINTENANCE CHARACTERISTICS

• Main Authors: L. A. Muradian, V. Yu. Shaposhnyk, A. A. Mischenko
• Format: Article
• Language: English
• Published: Dnipro National University of Railway Transport named after Academician V. Lazaryan 2016-02-01
• Series: Nauka ta progres transportu
• Subjects: reliability; refusal; unfailing work probability; maintenance testing; control maintenance; new car generation
• Online Access: http://stp.diit.edu.ua/article/view/61044/60998
• ISSN: 2307-3489; 2307-6666

Purpose. The paper involves: 1) confirmation of the technical characteristics of cars and their modifications, as well as indicators of unfailing work probability during the time between overhauls or service hours; 2) improving the methodological approaches to assess the maintenance characteristics of new and modernized equipment of rail transport on the example of not self-propelled rolling stock, namely, railway freight cars; 3) solution of scientific and applied problems in assessment the maintenance characteristics of the new and modernized railway equipment. Methodology. The basic methodological approaches to the assessment of the maintenance characteristics on the example of not self-propelled rolling stock, namely, railway freight cars were considered. The analysis of the reliability of the car, which is considered as a complex mechanical system, where all system elements are connected in series, wherein each element includes m is serially connected parts. The failure of each part of the calculation will result in refusal of the car. Thus, the car is a system without redundancy. Findings. The evaluation technic of the maintenance characteristics of freight cars in controlled operation with taking into account the features of the new generation of cars was improved. Specified: the duration of the tests, the frequency of inspection of the control group of cars controlled by the parameters of the car, the reasons for the early termination of controlled operation. Identified failures in the process of controlled operation are divided according to their nature. Originality. The authors proposed a method of assessing the maintenance characteristics of railway equipment in trial operation as an example of a new generation of freight cars. Practical value. The results allow assessing the maintenance characteristics of new and modernized rail transport equipment during the maintenance test.