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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 5.16

Semi-Active Damping System for Secondary Suspension of Electric Multiple Unit

T. Michálek1, F. Jeniš2, Z. Strecker2, I. Mazůrek2, O. Macháček2, P. Staněk3, Z. Malkovský3 and J. Chvojan4

1Faculty of Transport Engineering, University of Pardubice, Czech Republic
2Faculty of Mechanical Engineering, Brno University of Technology, Czech Republic
3Testing laboratory of railway rolling stock, VÚKV, Praha, Czech Republic
4Dynamic testing and force laboratory, Research and Testing Institute in Pilsen, Czech Republic

Full Bibliographic Reference for this paper
T. Michálek, F. Jeniš, Z. Strecker, I. Mazůrek, O. Macháček, P. Staněk, Z. Malkovský, J. Chvojan, "Semi-Active Damping System for Secondary Suspension of Electric Multiple Unit", 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 5.16, 2024, doi:10.4203/ccc.7.5.16
Keywords: electric multiple unit, secondary suspension, magnetorheological damper, semi-active control, multi-body simulation, full scale test, running comfort.

Abstract
In this paper, a project of research and development of a semi-actively controlled damping system for an electric multiple unit and its current results are presented. The aim of the project is to develop and manufacture a set of fast magnetorheological dampers including its control, which can be applied in secondary suspension of an (inter)regional electric multiple unit as vertical and lateral dampers, and validate the expected contribution of this system for improvement of vehicle running comfort by operational tests. For purposes of assessment of efficiency of the considered control algorithms and tuning of their parameters, multi-body simulations were used. Besides to that, full scale laboratory tests of secondary suspension system in vertical direction on a dynamic test stand were used to verify the expected effects of the semi-actively controlled dampers.

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