Serbian Railways

Novi Beograd, Serbia

Serbian Railways

Novi Beograd, Serbia
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Milenkovic D.,Serbian Railways | Adamovic Z.,Technical Faculty | Krstic M.,Serbian Railways | Milutnovic D.,Serbian Railways
Journal of the Balkan Tribological Association | Year: 2013

The paper shows the functioning of rail fastening system on a railway track. The function of rail fastening system is to maintain the required tightening force as long as possible, as well as the required pull-out force of coach screws, which results in strong connections between other elements of rail fasteners and sleepers. Based on the tests conducted in laboratories and in field on pull-out force with a built-in plastic dowel and binder (Sikadur-31), on concrete as well as wooden sleepers, the following can be concluded: the results show that with the increase in friction, the pull-out force goes up significantly when the injected binder has the addition of quartz sand, as well as the increase in reliability of a joint between rails and sleepers with other fastening elements. Unreliable rail and sleeper joint leads to increased wear of other elements in the connection and thus reduces the flexibility and reliability of rail fastening system.


Ranitovic P.,University of Belgrade | Tepic G.,University of Novi Sad | Matic B.,University of Novi Sad | Sremac S.,University of Novi Sad | Vukadinovic V.,Serbian Railways
Metalurgija | Year: 2013

MySAP ERP - Enterprise Resource Planning (system - solution which provides a whole set of functions for the business analytics, finance, human resources management, logistics and corporate services) has developed from SAP R/3. It is one of the main products of the SAP AG German multinational company and as such, it is a very important element of the international industrial and technological security system. By defining the functional dependency between the security systems (logistics security systems) and the IT (My SAP ERP) systems in metallurgy, a concept for designing MY SAP ERP system in metallurgic industry is defined, based on the security aspects.


Popovic Z.,University of Belgrade | Radovic V.,University of Montenegro | Lazarevic L.,University of Belgrade | Vukadinovic V.,Serbian Railways | Tepic G.,University of Novi Sad
Metalurgija | Year: 2013

Rail defects due to rolling contact fatigue (RCF) threaten the traffic safety around the world. That hazard is more distinct on railways without adequate maintenance strategy. Realization of interoperability of European railway network demands from every infrastructure manager to have a maintenance plan for the infrastructure subsystem. Besides that, this plan includes rail inspection and strategy against RCF defects. This paper emphasizes the importance of rail inspection and early detection of RCF because the most of RCF crack should be removed in rail grinding campaigns (preventive, cyclical and corrective activities) during the whole rail service life.


Milinkovic S.,University of Belgrade | Veskovic S.,University of Belgrade | Mitrovic B.,University of Belgrade | Dordevic Z.,Serbian Railways | Marton P.,University of Zilina
Komunikacie | Year: 2015

To remain competitive in a transport market, railway needs to increase reliability and to reduce the transport costs. Timely detection of a fault or defect can prevent a possible accident and can reduce maintenance costs. This paper presents a model for selection of locations for wayside train monitoring systems that are used to detect faults on the wagons. We present two models: first, based on multi-criteria decision making method is used for selecting a macro location, and second model based on fuzzy logic is used to determine a micro location of a wayside train monitoring system work station on Serbian rail network.


Tanackov I.,University of Novi Sad | Tepic J.,University of Novi Sad | Kostelac M.,University of Zagreb | Stojic G.,University of Novi Sad | Masal Z.,Serbian Railways
WIT Transactions on the Built Environment | Year: 2012

The paper presents a new approach to the research into the aerodynamic characteristics of vehicles and their interpretation. The approach is based on the theory of collision. The virtual mass is related to the unit coefficient of restitution of a central collision and to the absorption of kinetic energy. The basic system is chosen to be a train, and the system involving the virtual mass effect is air. A series of successive collisions of these two systems provides a model of air resistance. The expression derived for the unit virtual mass states that it is equal to a half of the coefficient of the square polynomial term of the air drag function. Thus, a physical interpretation of the virtual mass has been obtained and the metric system of the air resistance has been determined. A relation between the virtual mass and the most important aerodynamic characteristic, i.e. the coefficient of aerodynamic profile, has been established. © 2012 WIT Press.


News Article | October 28, 2016
Site: www.marketwired.com

- First project underway follows recent signing of Memorandum of Understanding between Russian Railways International and Bombardier Transportation - Signalling upgrade on the Serbian section of the Belgrade-Bar Line is an important step towards modernising the 40-year old passenger line BERLIN, GERMANY--(Marketwired - Oct. 24, 2016) - Rail technology leader Bombardier Transportation has started work on its first rail control project in Serbia, phase one of the upgrade to the Serbian section of the Belgrade-Bar (Montenegro) Line. The pioneering project on the 77.6 km Resnik-Valjevo section is being delivered by the Bombardier Transportation (Signal) Ltd Joint Venture to Russian Railways (RZD) International which is undertaking the upgrade on behalf of Serbian Railways (Infrastruktura železnice Srbije). Peter Cedervall, President, Rail Control Solutions Division, Bombardier Transportation, commented, "We are pleased to be expanding into Serbia and contributing to the modernisation of the country's railway infrastructure, which will bring important safety enhancements and reduced travel times for passengers. In addition, this project is further recognition of our role as a trusted supplier across the 1520 mm gauge market and we look forward to working together with RZD International, as well as further building on our vehicle presence in Serbia for locomotive operation." The 287 km Serbian section of the Belgrade-Bar Line is the longest rail connection on the country's network and forms part of the link between Serbia and Montenegro's capitals. The Resnik-Valjevo project is a landmark step towards the first complete modernisation of the Serbian line in 40 years of operation. As well as delivering modern signalling and telecommunications products for increased safety, the upgrade will support increased train speeds from 50 to 120 km/hr. This is also the first project to start after the MoU signed in June between RZD International and Bombardier Transportation for close cooperation on developing and implementing joint railway infrastructure projects in the international market. The companies plan to collaborate on technologies and share experience within railway infrastructure construction, signalling and project management. A pioneer in the region, Bombardier Transportation (Signal) Ltd was the first international joint venture to be formed for the Russian Railways, delivering the BOMBARDIER EBI Lock 950 computer-based interlocking (CBI) system. Since the first station was equipped in Russia in 1999, the company has equipped almost 300 stations across Russia, the Baltics, CIS, Mongolia and Eastern Europe and is fast becoming an expert in modern rail control for the entire 1520 mm railway gauge market. In Serbia, Bombardier Transportation has a footprint through its locomotive business with the Hungarian State Railways (MAV) which is operating BOMBARDIER TRAXX AC2 locomotives. Bombardier Transportation is a global leader in rail technology and offers the broadest portfolio in the industry. It covers the full spectrum of rail solutions, ranging from trains to sub-systems and signalling. The company also provides complete transport systems, e-mobility technology and maintenance services. As an innovation driver, Bombardier Transportation continuously breaks new ground in sustainable mobility. It provides integrated solutions that create substantial benefits for operators, passengers and the environment. Headquartered in Berlin, Germany, Bombardier Transportation employs around 39,400 people and its products and services operate in over 60 countries. Bombardier is the world's leading manufacturer of both planes and trains. Looking far ahead while delivering today, Bombardier is evolving mobility worldwide by answering the call for more efficient, sustainable and enjoyable transportation everywhere. Our vehicles, services and, most of all, our employees are what make us a global leader in transportation. Bombardier is headquartered in Montréal, Canada. Our shares are traded on the Toronto Stock Exchange (BBD) and we are listed on the Dow Jones Sustainability North America Index. In the fiscal year ended December 31, 2015, we posted revenues of $18.2 billion. News and information are available at bombardier.com or follow us on Twitter @Bombardier. For news releases, related material and photos, visit our media centre at www.bombardier.com/en/media-centre.html. Please subscribe to our RSS Feed to receive press releases or follow Bombardier Transportation on Twitter @BombardierRail. Bombardier, EBI TRAXX and The Evolution of Mobility are trademarks of Bombardier Inc. or its subsidiaries. You can also contact one of our worldwide contacts for specific press inquiries.


Tepic G.,University of Novi Sad | Pejakov T.,University of Novi Sad | Lalic B.,University of Novi Sad | Vukadinovic V.,Serbian Railways | Milisavljevic S.,University of Novi Sad
Metalurgija | Year: 2013

Environmental protection is a serious problem facing the modern world. Precisely for this reason, in this work, the authors explore its different aspects. From the perspective of conservation of natural resources and energy savings, the replacement of primary materials through recycling is explored as a potential solution in the elementary processes related to the parasol production. Such parasols would be used in designing "urban forest" solutions, which significantly contribute to the protection of the planet from global warming, as well as the preservation of life and survival.

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