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P. Augusto De Paula Pacheco^1,2, M.V. Lopes¹, G.F. Mendonça Dos Santos³, M. Costa⁴ and A.A. Santos Jr¹

¹School of Mechanical Engineering, State University of Campinas, Brazil
²Railway Department, Federal Institute of the Southeast of Minas Gerais, Brazil
³Departament of Mechanical Engineering, Federal University of Espírito Santo, Vitória, Brazil
⁴Railways Engineering, Vale S.A., São Luís, Brazil

doi:10.4203/ccc.7.9.11

P. Augusto De Paula Pacheco, M.V. Lopes, G.F. Mendonça Dos Santos, M. Costa, A.A. Santos Jr, "Impact of Wheel Hollow Wear on Heavy-Haul Vehicle Components", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 9.11, 2024, doi:10.4203/ccc.7.9.11

Keywords: railways maintenance, worn wheels, component load, dynamic simulation, heavy haul, multi-body modelling.

Abstract

The impact of worn wheel profile evolution on vehicle components’ stress for heavy-haul wagons were investigated using multibody dynamic simulation. A broad gauge GDU-Ride Control wagon, a Brazilian heavy-haul three-piece bogie with 37.5 tons per axle, was modelled. Four wheel profiles were examined, with 1, 2 and 3 mm of hollow wear and the new wheel profile. The effects of wheel hollows on vehicle components in terms of vertical, longitudinal, and lateral forces, vertical and lateral acceleration of the pedestal and wagon body, and lateral displacement of the wheelset, were examined and discussed. The result shows that the hollow is critical for the forces in the primary suspension (pad) and centre plate. Increasing the hollow wear to 2 mm results in larger lateral displacement, however, a 3 mm hollow wear wheel does not enhance this behaviour due to the false flange. Besides, there was a 48% increase in longitudinal forces at the pad for the 1-mm hollow wheel, and 53% for the 2- and 3-mm, when compared to the effect of new wheels. Conversely, the forces of the secondary suspension were not affected. Finally, for the centre plate, increased hollows amplified the friction force and resulted in uneven wear.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 7 PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 9.11 Impact of Wheel Hollow Wear on Heavy-Haul Vehicle Components P. Augusto De Paula Pacheco^1,2, M.V. Lopes¹, G.F. Mendonça Dos Santos³, M. Costa⁴ and A.A. Santos Jr¹ ¹School of Mechanical Engineering, State University of Campinas, Brazil ²Railway Department, Federal Institute of the Southeast of Minas Gerais, Brazil ³Departament of Mechanical Engineering, Federal University of Espírito Santo, Vitória, Brazil ⁴Railways Engineering, Vale S.A., São Luís, Brazil doi:10.4203/ccc.7.9.11 Full Bibliographic Reference for this paper P. Augusto De Paula Pacheco, M.V. Lopes, G.F. Mendonça Dos Santos, M. Costa, A.A. Santos Jr, "Impact of Wheel Hollow Wear on Heavy-Haul Vehicle Components", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 9.11, 2024, doi:10.4203/ccc.7.9.11 Keywords: railways maintenance, worn wheels, component load, dynamic simulation, heavy haul, multi-body modelling. Abstract The impact of worn wheel profile evolution on vehicle components’ stress for heavy-haul wagons were investigated using multibody dynamic simulation. A broad gauge GDU-Ride Control wagon, a Brazilian heavy-haul three-piece bogie with 37.5 tons per axle, was modelled. Four wheel profiles were examined, with 1, 2 and 3 mm of hollow wear and the new wheel profile. The effects of wheel hollows on vehicle components in terms of vertical, longitudinal, and lateral forces, vertical and lateral acceleration of the pedestal and wagon body, and lateral displacement of the wheelset, were examined and discussed. The result shows that the hollow is critical for the forces in the primary suspension (pad) and centre plate. Increasing the hollow wear to 2 mm results in larger lateral displacement, however, a 3 mm hollow wear wheel does not enhance this behaviour due to the false flange. Besides, there was a 48% increase in longitudinal forces at the pad for the 1-mm hollow wheel, and 53% for the 2- and 3-mm, when compared to the effect of new wheels. Conversely, the forces of the secondary suspension were not affected. Finally, for the centre plate, increased hollows amplified the friction force and resulted in uneven wear. download the full-text of this paper (PDF, 14 pages, 1053 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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