Triennial Report 2003 - CHARMEC

Parallel EU projects – Parallella EU-projekt – Parallele EU-Projekte – Projets parallèles avec l’UEEU3. SILENT TRACKSilent Track – Development of new technologies for low noiserailway infrastructureEntwicklung neuer Technologien für leise InfrastrukturDéveloppement de nouvelles technologies pour des infrastructuresferroviaires silencieusesFor photo of Jens Nielsen,see page 19Silent Track had overall a budgeted project cost ofkeuro 3747 and a budgeted eu funding of keuro 2075.Chalmers/charmec’s share of the eu funding waskeuro 150 and our commitment to the project was28.5 man-months. Silent Track ran between 1 January1997 and 29 February 2000. The project was coordinatedby erri (William Bird).The aim of Silent Track and the eu3 project was toreduce the noise level from tracks with freight traffic by10 dB(A). charmec’s contribution was partly to developfurther the diff model (see under project ts1) for study-ing the origin of corrugation on the railhead and partlyto propose a new sleeper with reduced radiated soundpower. Simulation of corrugation growth in diff wascalibrated and verified against measurements of waveformation on rails used on the Dutch railways. In collaborationwith Abetong Teknik (a subcontractor in SilentTrack), new optimized two-block sleepers were developedand manufactured, and also used in the full-scale testsat Velim in the Czech Republic in May/June 1999.Docent Jens Nielsen led the eu3 project. See furtherthe charmec Triennial Report from Stage 2. Two newpublications are listed below.Martin Hiensch, Jens Nielsen and Edwin Verheijen: Rail corrugationin the Netherlands – measurements and simulations,Wear, vol 253, nos 1-2, 2002, pp 140-149 (revised version ofconference paper)Jens Nielsen: Numerical prediction of rail roughness growth ontangent railway tracks, Journal of Sound and Vibration, vol 267,no 3, 2003, pp 537-548Parallel EU projects – Parallella EU-projekt – Parallele EU-Projekte – Projets parallèles avec l’UEEU4. ICONICON – Integrated study of rolling contact fatigueIntegriertes Studium über Ermüdung durch RollkontaktÉtude intégrée de la fatigue de contact au roulementFor photo of Lennart Josefson,see page 38icon had overall a budgeted project cost of keuro1832 and a budgeted eu funding of keuro 1300.Chalmers/charmec’s share of the eu funding waskeuro 96 and our commitment to the project was16 man-months. icon ran between 1 January 1997 and31 December 1999. The project was coordinated byerri (David Cannon).The aim of icon and the eu4 project was to developand verify a calculation model that can describe theinitiation and early growth of cracks in the railhead.The activities within projects eu4 and mu6 were similarand coincided to a great extent. Here we refer to thereport in the former under project mu6.Professor Lennart Josefson led the eu4 project. Seefurther the charmec Triennial Report from Stage 2.For the eu projects, it should be observed that theentry “budgeted project cost” includes the full costsborne by the industrial partners but excludes abouthalf of the total costs borne by the university. Forthe projects eu6, eu7 and eu8, these additional costsat Chalmers are given as “Budget charmec”.53