Triennial Report 2003 - CHARMEC

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of laser-cladded railway steel was presented. The knowledgederived from this research, as well as from anotherresearch project into the microstructures under the cladding,is of great importance to us. The results will beexploited in a new eu project in the Sixth FrameworkProgramme.eu wants to triple the railway transportation volumein 15 years, and Sweden is in the forefront of developingtracks and trains for higher axle loads. As we see it, atwo-material rail is probably one of the best solutionsfor increasing the performance of rails and at the sametime reducing noise levels. The network within charmecplays a very important role in the successful eu-projectinfrastar within the Fifth Framework Programme. Therails developed in this project have now been subjectedto in-field testing for more than one year on the Iron OreLine in northern Sweden and in the Paris underground.The results are promising.Green CargoThe co-operation with charmec has been important inour evaluation of existing wheelsets and approval of newwheelset designs. The Centre’s researchers have beenactive in developing new wheelset designs for 25 and 30tonne axle loads which are now being implemented byus. Further, they have co-operated with us when testingand evaluating new composition brake blocks for lownoise freight transports. The charmec participation inthe eu-project ers is important for future developmentin this area.Lucchini SwedenA significant achievement in our co-operation withcharmec during the last three years has been the developmentof new freight wagon wheelsets for 25 and 30tonne axle loads suitable for the Nordic climate. Thesewheelsets have to fulfil stringent requirements to complywith various national and international standards. Thebrake test rig on our premises at Surahammar, earlierdeveloped together with Chalmers, has been extremelyimportant in this work. Further, the charmec researchwork at the Railway Noise Test Rig (rntr, also on ourpremises) is important for our long-term strategy to developquieter railway wheels. The charmec work onout-of-round wheels has been of great value in our workto improve our production techniques. Further, charmecpersonnel have assisted us in marketing and in technicalmeetings with customers.For the past two years our company (formerly AdtranzWheelset) has belonged to the Italian Lucchini Groupwith subsidiaries in several countries in Europe. Thecompetence and special knowledge within charmec havebeen of great importance in our co-operation with thenew owner, especially in our contacts with their researchand development department in Italy. Synergy effectshave already been achieved in that a new charmecproject on improved wheel materials to be conducted incollaboration with Lucchini in Italy has recently started.Another area of co-operation is the work on fatigue andcracks in railway wheels.SAB WABCO GroupThe ongoing renewal of braking systems for railwayfreight wagons is driven by requirements for higher trainspeeds, increased axle loads and lower noise levels. sabwabco is now developing a new generation of blockbraking equipment for the world market. A broad approachcombining theoretical models and results fromrig tests and in-field tests has been initiated by charmec.The block braking of freight and passenger wagonsshould be optimized regarding high braking power togetherwith low damage, low wear and low noise fromthe wheels. charmec’s involvement in the eu-projectEuro Rolling Silently (ers) is of great value for us. sabwabco is now also introducing modern computerizedcontrol systems for the braking of all kinds of locomotives,wagons and coaches. The corresponding charmecproject addresses the extremely high level of safety andsecurity that will be required for these systems.TrainTech Engineering SwedenThe co-operation with charmec has been of great valuein our work to enhance the performance of the x2 highspeed tilting trains. charmec personnel have been activethroughout the planning, execution, analysis and evaluationphases in our track force measuring campaign onx2. The methods and computer programs relating tohigh frequency train/track dynamics developed withincharmec have been implemented. This together withour employment of a PhD from charmec has increasedour knowledge and better equipped us in this importantarea of train operation. charmec personnel havecontributed to new wheelset designs for the x2 trains.charmec has made important contributions at ourannual meetings with Deutsche Bahn’s Research andTechnology Centre in Minden.65
PARTNERS IN INDUSTRYThe status reported below is of November <strong>2003</strong>. The newpartner voestalpine Bahnsysteme GmbH of Stage 4 hasalso been included. For each partner the first year of involvementwith charmec is indicated (and before that bybilateral agreement with the railway mechanics group atChalmers Solid Mechanics).Abetong Teknik AB (1995 and 1988)Manufacturer of prefabricated and pretensioned concretestructural components with 600 employees includingsubsidiary and sister companies in Sweden and abroad.Headquartered in Växjö. Belongs to the Heidelberg-Cement Group. Areas of interest are the design andmanufacture of railway sleepers fitted with fasteningsand pads for the rails. Of particular interest are toolsuseful for the identification of loads on sleepers installedin track and for the structural analysis and design ofsleepers for main lines and turnouts. Also of interest isthe proportion of noise emitted by the sleepers. Themain buyers of sleepers are state railways and railwaycontractors. A total of around 3 million Abetong sleepersare produced annually in fully and partly owned andlicensed sleeper plants at about 25 locations around theworld.Banverket (1995 and 1990)The Swedish National Rail Administration, abbreviatedbv, is the country’s infrastructure authority and managerwith a total of 8000 employees. charmec’s partner is theheadquarters at Borlänge with 400 employees. charmecalso co-operates with some regional offices. Areas of interestare the design, construction and maintenance of allsorts of track structures for high availability and reliability.Of particular interest are the wear and corrugationof the railhead (calling for maintenance grinding) andthe overall degradation of track structure. It is especiallyimportant to understand and predict the influence on thetrack of proposed higher speeds and increased axle loads.Of primary importance to Banverket is also researchconcerning vibration, noise and safety.Bombardier Transportation Sweden AB (2000)Bombardier Transportation is a global manufacturerof equipment for railway operations and a provider ofmaintenance and service of rolling stock. The rangeof products includes passenger coaches, total transit systems,locomotives, freight cars, propulsion systems andrail control solutions. The total number of employeesis 36,000, of whom 2000 work in Sweden. The office inVästerås is one of the main engineering hubs for thedivision Intercity Trains. Also located on this site arethe global Centres of Competence for Acoustics andVibration and for Vehicle Dynamics. Areas of interestare focused on wheel-rail interaction and its effects onride dynamics, wheel wear, wheel damage, and rollingnoise. Also of interest are the transmission of wheel-railgenerated vibration into the bogie and car body, contactforce identification, and the application of active controlsystems for enhanced comfort.Duroc Rail AB (1997)A company within the Duroc group with a large shareof the Swedish railway wheelset maintenance marketin which it carries out traditional turning of wheels etc.However, the company’s development work focuses ontreatment techniques for the running surfaces of wheelsand rails. Different metallic, ceramic and composite materialsare deposited in thin layers on these surfaces tomodify their friction coefficient, decrease the wear andprotect against rolling contact fatigue. Duroc Rail is locatedin Luleå with 25 employees. Areas of interest in theco-operation with charmec are general issues relating towheel/rail contact and in particular to the surface properties,binding conditions and life spans of laser-treatedwheel treads and rail heads.Green Cargo AB (2000)State-owned Swedish logistic company with headquartersin Solna and with 3700 employees and an annual turnoverof about meuro 700. Green Cargo achieves about12,000 million tonne-km of cargo annually and 770 millionwagon-km (2002). Green Cargo has 450 locomotivesand 9200 freight wagons. The former “sj Godstransportdivisionen”(Freight Division of the Swedish State Railways)was incorporated at the turn of the year 2000/2001,changing its name to Green Cargo ab. Areas of interestin the co-operation with charmec are braking, noiseemission, and improved designs and materials for wheelsand axles.66
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triennial report1 July 2000 - 30 Ju
Page 3 and 4:
CHARMEC RESEARCH 1995-2006Status as
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EXECUTIVE SUMMARYcharmec has establ
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VISION AND GOALSBOARD AND DIRECTORc
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PROGRAMME AREAS CHARMEC STAGE 3Acco
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SUMMARY OF CHARMEC STAGE 3 (cont’
Page 13 and 14: Interaction of train and track - Sa
Page 23 and 24: Vibrations and noise - Vibrationer
Page 31 and 32: Materials and maintenance - Materia
Page 47 and 48: Systems for monitoring and operatio
Page 49 and 50: Systems for monitoring and operatio
Page 51 and 52: Parallel EU projects - Parallella E
Page 57 and 58: Parallel special projects - Paralle
Page 59 and 60: ACADEMIC AWARDSThe research in rail
Page 61 and 62: CONFERENCE CM2003 AT CHALMERSThe 6t
Page 63: RESULTS AND EFFECTS IN INDUSTRYAt t
Page 67 and 68: PARTNERS IN EU PROJECTSOur partners
Page 69 and 70: SPECIAL EVENTS AND ACHIEVEMENTSSome
Page 71 and 72: SPECIAL EVENTS AND ACHIEVEMENTS (co
Page 73 and 74: SPECIAL EVENTS AND ACHIEVEMENTS (co
Page 75 and 76: FINANCIAL REPORTHere following are
Page 77 and 78: FINANCIAL REPORT (cont’d)ogy ab u
Page 79 and 80: 3142Photo: Bo Håkansson, Kamerarep
Page 81: Design: Yngve Nygren. Printed by Pa
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Triennial Report 2003 - CHARMEC

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