The design of an aluminium alloy wheel using three dimensional finite element analysis and fatigue life prediction. This work was carried out as part of the project hiperwheel, funded by the european community within the vth framework programme. Pdf this summary is concerned on manufacturing process for alloy wheel. Pdf a new cae procedure for railway wheel tribological. Railway track wheel design interaction guide the model explains the interaction between railway wheels and railway tracks. Annex a2 basis of structural design application for bridges. The trains left wheels now have to travel more than the right wheels because at the turn the track on the left is longer. Sheet 6 structure design by allowable stress method 323. The grabcad library offers millions of free cad designs, cad files, and 3d models.
Used for the railway passenger car bogies, the wheels are an approximate running speed of more than 120kmh, with a light wheel load. A railway wheel, together with an axle, is one of the crucial parts. Design of railway wheel profile taking into account. Optimisation of a railway vehicletrack system is a complex process. It is well known that the shape employed to design both the wheel. Locomotives and rail cars publication its08 march 2011 control no. Within a given country, different notations may also be employed for different kinds of. A new cae procedure for railway wheel tribological design r. Therefore, if the left wheel now makes one circle it travels further than. Standardization of terminology, technical requirements, materials, dimensions and tolerances, test methods for railway rails, rail fasteners, wheel and wheelsets. Rolling stock any vehicle capable of moving on railway track excluding push trolleys. The term bogie is used in british english, while a wheel truck, or simply truck is used in american english. The design of an aluminium alloy wheel using three. The procedure uses optimality criteria based on an rrd function.
Optimisation of a railway wheel profile springerlink. The paper presents a procedure for optimal design of a wheel profile based on geometrical wheel. They commonly use axle disc brakes or wheel disc brakes. New demands are being imposed on railway wheel wear and reliability to increase the time between wheel reprofiling, improve safety and reduce total wheelset lifecycle costs. Transportation engineering part2 made easy handwritten. Pdf new demands are being imposed on railway wheel wear and reliability to increase. The first is the dynamic stability of the vehicle at. These failures may cause damage to rails, damage to train suspensions and, in some cases, serious derailment of the train. International design practices, applications, and performances of asphaltbituminous railway trackbeds dr. The results of the optimisation have shown that the performance of railway vehicle can be improved by improving the contact properties of the wheel and rail. Wheels are susceptible to mass imbalance, which causes vibration of the axle and wheel and is transmitted to the body, producing uncomfortable resonance at certain speeds. Doyle bsc eng styling has always played a very important role in automobile design. A typical wheel used on a roller coaster is constructed by taking an aluminum hub and bonding a polyurethane tire to the hubs outside diameter.
Proposed procedure for determining wheel and wheelset dimensions for large scale trains introduction in order to allow interoperation of equipment on multiple tracks a series of standard dimensions have been developed that apply to the design, production, and inspection of wheels and wheelsets two wheels and an axle. Perform design calculations of rail wheel axle model. A rolling component is typically pressed onto an axle and mounted directly on a locomotive or indirectly on a bogie. Analysis of railway wheel to study thermal and structural behaviour pramod murali mohan abstract wheelrail systems are intensively subjected to damage caused by rolling contact and slip behaviour between the wheel and the rail. An inverse shape design method for railway wheel profiles. Guidelines for the design and construction of railroad overpasses and underpasses 5 structure shall be designed for e80 load to accommodate any future track needs or modifications. En 1031 en 1031 railway applications wheelsets and bogies part 1. Guided by this planning, the whole railway design process must aim to achieve the best coordination, the shortest period, the lowest cost, and an optimal outcome. The wbs will have to match a time plan, the submission of which is invariably part of a contract these days, and which will contain milestones in the design and manufacturing process which the supplier must adhere to. Technical regulatory standards on japanese railways railway bureau ministry of land, infrastructure, transport and tourism. Shape optimisation of railway wheel profile under uncertainties ivan y. Beam on discrete support model, discretely support track including ballast mass model and rail on sleeper on continuum model. The paper proposes a procedure for design of a wheel profile which improves wheel rail interaction by reducing wear while taking into account rolling contact fatigue. Materials used for wheels on rolling stock railway research.
Create 3d model of the existing model of rail wheel axle from the 2d drawings. Railway wheels the wheel is better understood by dividing it into the following parts hub disc tyre. Design and dynamic analysis of locomotive wheel axle a. Development of an onboard measurement system for railway. If bridge maintenance structure is totally separate structure, it shall be designed for hs2044 live load. The damping of wheel modes is very light so that the half power bandwidth is small, typically only a few hz. The rolling contact fatigue rcf problems such as head checks hc in moderate and large radius curves have high priority of the dutch railways ns. The fixture was designed using dimensions of the bogie and wheelset.
Railwheel systems cm2003 in gothenburg, sweden june 10, 2003 submitted to wear journal june 2003 optimal design of wheel profile for railway vehicles i. Design technologies for railway wheels and future prospects. That means they have a varying diameter at different points of contact. Ips designs and manufactures customized rail carts complete with checker plate decking, wheel assemblies, oscillating axles, pintle hitches, d rings, braking systems with glad hands, and safety yellow paint finish. Sep 28, 2006 optimisation of a railway vehicletrack system is a complex process.
The effect of lateral displacement of vertical loads shall be considered by taking the ratio of wheel loads on all axles as up to. There are mainly two approaches to improve the wheel performance. Figure 1 shows the cad design of the wheel rim before optimization. Train vehicle vehicles moving on rail which need line clear to enter a block section. The chapter discusses both natural frequencies and mode shapes, and the frequency response of a wheel from its modes of vibration. American railway engineering and maintenance of way association arema formerly american railway.
Esveld section of road and railway engineering faculty of civil engineering and geosciences, delft university of technology stevinweg 1, nl2628, cn delft. The paper proposes a procedure for design of a wheel profile which improves wheelrail interaction by reducing wear while taking into. Most railway wheels are axisymmetric, having a constant crosssection around the azimuthal direction. The computeraided design cad files and all associated content posted to. Check out some examples of our work, and if you dont see what you need call us. The modern railway version is based on the steel wheel running on a steel rail.
Pdf design of an optimised wheel profile for rail vehicles. There are three main types of wheels which secure the. Using the proposed procedure a new wheel profile has been obtained and applied to the ret metro trains. Join the grabcad community today to gain access and download. Select design wheel load based on most common, heaviest car and desired track speed. Materials used for wheels on rolling stock katrin madler, manfred bannasch deutsche bahn ag, technical centre, brandenburgkirchmoser, germany 1 introduction in the contact area between the wheel and the rail, the materials are used in those components encounter the greatest demands. Technical regulatory standards on japanese railways. In a railway vehicle design two main factors have to be considered. Pdf this article sets out an optimum synthesis methodology for wheel profiles of railway vehicles in order to secure good dynamic behaviour with. Classification of rolling stock the definition of various terms used in rolling stock management are given below. Railway engineering made easy gate handwritten notes download pdf for free only at civilenggforall. The geometry of wheelrail contact is a key feature in resolving the dynamics of a rail vehicle. Design of an optimised wheel profile for rail vehicles operating on two track gauges.
Therefore, railway location design is a systematic planning of a railway, whether constructing a new one or reconstructing an old one. A rolling component is typically pushed onto an axle and mounted directly on a railway carriage or locomotive, or indirectly on a bogie in the uk, also called a truck in north america. Markine, coenraad esveld delft university of technology, delft, the netherlands abstract optimisation of a railway vehicletrack system is a complex process. Design method for axles with external journals this european standard. The wheel tread is heattreated and has the profile shown in fig. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Press fit of wheel on axles wheel disc is pressed to axle with interference fit the bore of the wheel should be 0.
Design of railway wheel profile taking into account rolling. Design of an optimised wheel profile for rail vehicles operating on. Several notations exist to describe the wheel assemblies of a locomotive by type, position, and connections, with the adopted notations varying by country. Problem of wheel rail profiles design exists for many years and different approaches have been developed to obtain satisfactory wheel rail profile combinations. This invention relates to a railway wheel treadprofile. It is possible to find an optimal combination of wheel and rail profile when dealing with closed railway system, i. It has an unprecedented opportunity to achieve the sustainability required to be a very powerful contributor to european suc.
Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. This will help in designing wheels for minimum wheel and rail wear. The criteria account for stability of wheelset, cost efficiency, minimum wear of wheels and. A train wheel or rail wheel is a type of wheel specially designed for use on railway tracks. Foreignrailwayspecifications 5 worthyconclusionsconcerningtherelativeprevalenceofaccidents duetofaultyequipmentabroadandathome. Train wheels are not as simple as they seem awesci. Theory and applications, comprehensively introduces the technical characteristics and requirements of highspeed turnouts, including design theories and methods of turnout layout geometry, wheel and rail relations, track stiffness, welded turnout, turnout conversion, turnout components, and manufacture and. Construction wheel rim,construction wheel rim,construction. Design principles a bogie is a structure underneath a railway vehicle body to which axles and wheels are attached through bearings.
T railway technology today 5 edited by kanji wako how. New demands are being imposed on railway wheel wear and reliability to increase the time between wheel reprofiling, improve safety and. According to the complexity, different railway track systems have been simulated, including. Wheel design by nick october 24, 2011 a typical wheel used on a roller coaster is constructed by taking an aluminum hub and bonding a polyurethane tire to the hubs outside diameter. In this paper, in order to obtain the dynamic forces. Railway technical website thpage 5 updated 10 may 2017 commissioned and delivered to the eagerly awaiting customer. A new cae procedure for railway wheel tribological design. Railway track design 217 217 railway track design basic considerations and guidelines to be used in the establishment of railway horizontal and vertical alignments. Lohit havalagi assistant professor, nkocet solapur. Design and dynamic analysis of locomotive wheel axle. This factor as well as the demands of new safety legislation in europe and through out the world makes it a very competitive industry. It has an unprecedented opportunity to achieve the sustainability required to be a very powerful contributor to european success in the twenty first century. Proposed procedure for determining wheel and wheelset. The paper presents a procedure for optimal design of a wheel profile based on geometrical wheelrail contact characteristics such as the rolling radii difference rrd.
Chapter track structure design table of contents 4. Tbt 2817, aar m107208, bs 58923 and en 262 standards are met in wagon wheel manufacturing. This entire wheel assembly is then connected to the axle through a bearing. Locomotives engine or motive power source to haul a train. Read book railway track design manual railway track design manual improving railway track design university of southampton railway track design today owes as much to centuries of experience as it does to scientific understanding. To prevent this, efforts have been made since 1984 to hold the imbalance per wheel to below 25. Introduction to railroad track structural design don uzarski, ph. Rail analysis and design weight and section selection many rail weights and sections have evolved by the efforts of various designers. Pdf a new cae procedure for railway wheel tribological design. In rail transport, a wheel arrangement or wheel configuration is a system of classifying the way in which wheels are distributed under a locomotive. In parallel with these requirements, changes in railway vehicle missions are.
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