scholarly journals Change in the maintenance strategy as a method of improving the efficiency of the process of operation of railway means of transport

2018 ◽  
Vol 234 ◽  
pp. 05001
Author(s):  
Maciej Szkoda ◽  
Magdalena Satora
Keyword(s):  
Railway Vehicle ◽  
Maintenance Strategy ◽  
Legal Requirements ◽  
Vehicle Type ◽  
Maintenance System ◽  
Railway Safety

The paper presents a description of methods of changing the maintenance strategy concerning measures of intervals between maintenance levels based on the example of a selected railway vehicle type. The process starts with monitoring the vehicle after it is put into operation and the operational database is built, through the statistical and RAMS analyses, to the approval of changes in the maintenance system documentation by qualified railway safety bodies. Following the applicable formal and legal requirements, one of the key problems involved in the introduction of changes in the railway vehicle maintenance system is an assessment of the proposed changes for safety.

scholarly journals Effectiveness assessment of diesel locomotives operation with the use of mobile maintenance points

2020 ◽  
Vol 54 (2) ◽  
pp. 7-19
Author(s):  
Maciej Szkoda ◽  
Magdalena Satora ◽  
Zbigniew Konieczek
Keyword(s):  
Transport Process ◽  
System Development ◽  
Average Distance ◽  
Rolling Stock ◽  
Maintenance Strategy ◽  
Maintenance System ◽  
Unit Costs ◽  
New Strategy ◽  
Maintenance Activities ◽  
Effectiveness Assessment

Based on the example of 6Dg type diesel locomotives, the paper presents a new maintenance strategy concerning periodical checks at the P1 maintenance level. Currently, such locomotives are sent off to service points every 102 hours of operation or every 14 days for a P1 level check. Studies demonstrate that the average distance to be covered by a locomotive to arrive at a service point is in excess of 60.0 km, and the quantity of fuel consumed is more than 88 litres. It is costly and time consuming to have locomotives out of service and considerable resources of the railway carrier are engaged which could be made use of in the transport process. The aim of the newly developed strategy of P1 checks is to eliminate the need for locomotives to exit their routes to reach rolling stock maintenance points. The control/diagnostic and maintenance activities specified in the Maintenance System Documentation will be performed by so-called mobile maintenance points. The development of the new strategy required: identification of the current condition of the maintenance system, development of the concept of a new strategy of P1 maintenance checks, conduct of studies and operational analyses for SM42 series locomotives, performance of a durability, reliability analysis, assessment of safety together with an analysis of the risks involved in the proposed changes. In order to review and assess the efficiency of the new strategy, an observed operation of selected locomotives was conducted together with a railway carrier. During the study, the maintenance activities and processes were monitored and the costs of P1 checks were recorded. The analysis of efficiency of the new strategy of performing P1 checks without the need for a locomotive to exit its route to reach a rolling stock maintenance point demonstrated that depending on the distance covered by the locomotive to reach a maintenance point, the unit costs of a P1 level check are lower by up to 67.1% compared with the currently applied method.

scholarly journals Technical Safety Maintenance System (TeSaMa) in mechanical industry

Mechanik ◽  
2018 ◽  
Vol 91 (7) ◽  
pp. 523-525
Author(s):  
Marek Dźwiarek
Keyword(s):  
Holistic Approach ◽  
Risk Assessments ◽  
Safety Measure ◽  
Legal Requirements ◽  
Web Based ◽  
Production Phase ◽  
Maintenance System ◽  
Development Processes ◽  
Technical Safety

Web-based tool TeSaMa aims to provide a holistic approach for SME, giving them the ability to conduct and obtain risk assessments that include safety measure recommendations for production phase work places and machine development processes. This will enable the companies to fulfil legal requirements and improve productivity and reliability.

Proactive maintenance strategy for harbour crane operation improvement

Robotica ◽  
2003 ◽  
Vol 21 (3) ◽  
pp. 313-324 ◽  
Author(s):  
B. Iung ◽  
G. Morel ◽  
J.B. Léger
Keyword(s):  
Enterprise System ◽  
Maintenance Strategy ◽  
Modeling Framework ◽  
Maintenance System ◽  
Intelligent Maintenance ◽  
Quay Cranes ◽  
Technical Issues ◽  
Maintenance Process ◽  
Intelligent Maintenance System ◽  
Proactive Maintenance

Quay cranes are particular transportation devices for which operation's safety and CRAMP parameters (Cost, Reliability, Availability, Maintainability, and Productivity) should be fulfilled with regard to a harbor maintenance strategy. The maintenance process is first considered within a holistic modeling framework in order to cope with the current practices of treating strategic, operational and engineering maintenance issues independently without taking into account their interactions within an entire Enterprise System. Proactive maintenance is then highlighted as a new model aiming to globally optimize the components operation parameters throughout three interacting prognosis, diagnosis and monitoring processes. Technical issues related to Intelligent Maintenance System are finally proposed in order to support proactive maintenance operations at the enterprise field level and applied to quay cranes in a particular site within the frame of the European Eureka ‘Robcrane' project.

scholarly journals Design and development of Knowledge Based System for Integrated Maintenance Strategy and Operations

2016 ◽  
Vol 25 (1) ◽  
pp. 5-18 ◽  
Author(s):  
Milana Milana ◽  
M Khurshid Khan ◽  
J Eduardo Munive-Hernandez
Keyword(s):  
Maintenance Strategy ◽  
Design And Development ◽  
Knowledge Based System ◽  
Manufacturing Quality ◽  
Maintenance System ◽  
Knowledge Based ◽  
Current State ◽  
Quality Aspects ◽  
Maintenance Decisions ◽  
Business Function

The importance of maintenance has escalated significantly by the increase in automation in manufacturing processes. This condition changed the perspective of maintenance from being considered as an inevitable cost to being seen as a key business function to drive competitiveness. Consequently, maintenance decisions need to be aligned with the business competitive strategy as well as the requirements of manufacturing/quality functions in order to support manufacturing equipment performance. Therefore, it is required to synchronise the maintenance strategy and operations with business and manufacturing/quality aspects. This article presents the design and development of a Knowledge Based System for Integrated Maintenance Strategy and Operations. The developed framework of the Knowledge Based System for Integrated Maintenance Strategy and Operations is elaborated to show how the Knowledge Based System for Integrated Maintenance Strategy and Operations can be applied to support maintenance decisions. The knowledge-based system integrates the Gauging Absences of Prerequisites methodology in order to deal with different decision-making priorities and to facilitate benchmarking with a target performance state. This is a new contribution to this area. The Knowledge Based System for Integrated Maintenance Strategy and Operations is useful in reviewing the existing maintenance system and provides reasonable recommendations for maintenance decisions with respect to business and manufacturing perspectives. In addition, it indicates the roadmap from the current state to the benchmark goals for the maintenance system.

scholarly journals Requirements of the 4th Railway Package Towards Safety Management Systems

2020 ◽  
Vol 50 (1) ◽  
pp. 39-59
Author(s):  
Katarzyna Chruzik ◽  
Marzena Graboń-Chałupczak
Keyword(s):  
European Union ◽  
Management System ◽  
Safety Management ◽  
Management Systems ◽  
The European Union ◽  
Safety Management Systems ◽  
Legal Requirements ◽  
Safety Management System ◽  
Railway Safety ◽  
Rail Infrastructure

AbstractIn accordance with the new requirements of rail law, from June 2020, a railway undertaking or rail infrastructure manager applying for a single safety certificate/ authorization should demonstrate compliance with the relevant requirements of the Safety Management System (SMS) set out in the Commission delegated regulation (UE) 2018/762. To this end, he should provide proof to the national safety authority or, where applicable, to the European Union Agency for Railway Safety, of the establishment of a safety management system in accordance with Art. 9 of Directive (EU) 2016/798. According to Regulation, the organization should describe the scope of the safety management system, indicating which parts of the business are covered by it, considering legal requirements. The publication attempts to identify necessary changes and additions to hitherto functioning SMS.

scholarly journals A Framework to Determine the Effectiveness of Maintenance Strategies Lean Thinking Approach

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Alireza Irajpour ◽  
Ali Fallahian-Najafabadi ◽  
Mohammad Ali Mahbod ◽  
Mohammad Karimi
Keyword(s):  
Strategic Management ◽  
Maintenance Strategy ◽  
Lean Thinking ◽  
Maintenance Strategies ◽  
Maintenance System ◽  
Optimal Maintenance ◽  
Tools And Techniques ◽  
Maintenance Process ◽  
And Training ◽  
Maintenance Performance

The purpose of this paper is to provide a framework that can identify and evaluate the effectiveness of a given maintenance strategy and to rank components of maintenance system. The framework is developed using DEMATEL method on maintenance strategy as a guideline. To gain a richer understanding of the framework, a questionnaire is constructed and answered by experts. Then the DEMATEL method is applied to analyze the importance of criteria and the casual relations among the criteria are constructed. The scope of the paper is limited to performance measurement of maintenance strategies. It is found that the framework is applicable and useful for the strategic management of the maintenance function. It is observed that the influencing and preferred infrastructures for designing Learning and Training are three components, that is, optimal maintenance, CMMS, and RCM which are interdependent on each other and are the fundamental components to realize the designed goals of maintenance process. This paper provides an overview of research and developments in the measurement of maintenance performance. Many tools and techniques have been developed in other fields. However, the applicability of those tools to maintenance function has never been tried. In that respect this topic is novel. It helps in managing maintenance more effectively.

scholarly journals JUSTIFICATION OPTIMAL PARAMETERS OF REGULATED MAINTENANCE STRATEGY

2020 ◽  
pp. 13-22
Author(s):  
S.V. Lienkov ◽  
I.V. Tolok ◽  
G.V. Banzak ◽  
R.Yu. Koltsov ◽  
E.S. Lenkov ◽  
...  
Keyword(s):  
Technical Condition ◽  
Complex Model ◽  
Maintenance Strategy ◽  
Optimal Parameters ◽  
Maintenance System ◽  
Different Types ◽  
Wear And Tear ◽  
The Cost ◽  
Maintenance Process ◽  
Different Levels

A characteristic feature of complex technical objects for special purposes is the presence in their composition of a large number (tens, hundreds of thousands) of different types component parts that have different levels of reliability, different patterns of their wear and tear processes. This feature requires a more subtle approach to the organization and planning maintenance in the course of their operation. The problem is that in the development of such facilities, all issues related to maintainability and maintenance should be addressed already at the early stages of facility design. If you do not provide in advance the necessary hardware and software for the built-in monitoring of the technical condition (TC) of the facility, do not develop and “build” the maintenance technology into facility, then it will not be possible to realize in the future a possible gain in the reliability of the facility due to maintenance. Since all these issues must be resolved at the stage of object creation (when object does not yet exist), mathematical models of the maintenance process are needed, with the help of which it would be possible to calculate the possible gain in the level of reliability facility due to maintenance, estimate the cost costs required for this. Then, based on such calculations, make a decision on the need for maintenance given type of objects and, if such a decision is made, develop the structure of the maintenance system, choose the most acceptable maintenance strategy, and determine its optimal parameters. The paper shows that the model for the regulated maintenance strategy is an improved version of the already known models and is introduced into the complex model for the purpose of comparative assessment of various maintenance strategies. In addition, it should be borne in mind that in practice, some cases, a regulated maintenance strategy may be preferable to MCC strategies.

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