Reliability and availability assessment of diesel locomotive using Fault Tree Analysis
Journal Title: Archives of Transport - Year 2016, Vol 40, Issue 4
Abstract
The article presents an application of a method based on fault tree analysis and the Monte Carlo simulation in the assessment of reliability and availability of the rail means of transport. The primary target of the presented method is a cause and effect assessment of the occurrence of undesirable events, the determination of selected reliability indices and identification of the weakest components of rail vehicle that affect the downtime and technical availability most strongly. To illustrate the application of the presented method, the results of a project involving a 6Dg diesel locomotive, carried out in cooperation with the biggest Polish rail carrier, are shown. The assessment of availability and reliability was based on real operation data of a selected sample of seventy-five locomotives. Based on the collected data from the operation of the 6Dg locomotives, the times-to-failure and the times-to repair models were determined. A fault tree model of the locomotive was developed to assess the influence of the faults of the components on the reliability of the vehicle. A discrete simulation process allows to obtain a chosen characteristics and values of the selected measures, which – according to the authors – may be applied to assess the reliability and availability of the rail vehicles. Specialist software including Weibull++, BlockSim and MiniTab aided calculations were performed. The software includes and advanced solutions in the range of the reliability and availability simulations. The test results indicate that the proposed solution has a wide applicability potential.<br/><br/>
Authors and Affiliations
Maciej Szkoda, Grzegorz Kaczor
Keywords
Related Articles
- EP ID EP190583
- DOI 10.5604/08669546.1225470
- Views 119
- Downloads 0
Study of the derailment safety index Y/Q of the low-floor tram bogies with different types of guidance of independently rotating wheels
Modern tram designs use different conceptions of how to implement the low-floor functionality. The key construction part is the bogie running gear which has to accommodate the lower part of the tram body. To adjust the l...
Semi-Markov Model of the Operation and Maintenance Process of City Buses
This paper presents a model of the operation and maintenance process of the technical objects within the urban transport bus system. All the investigations have been presented on the basis of the selected real operation...
Mechatronic simulator of lever driven wheelchairs
Development of the lever-driven wheelchairs by different authors resulted in creating various lever-human work conditions in which disabled people propel their wheelchairs. This fact implies varying efficiency of human’s...
Availability Control for Means of Transport in Decisive Semi-Markov Models of Exploitation Process
The issues presented in this research paper refer to problems connected with the control process for exploitation implemented in the complex systems of exploitation for technical objects. The article presents the descrip...
Effect of user’s individual features on energy consumption of the orthotic robot
While working on a system for verticalization and aiding the motion of the disabled, the problem emerged related to evaluation of the effect of individual traits of the users of the system on the obtained characteristics...