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E. Di Gialleonardo, S. Melzi, F. Resta, G. Tomasini, "A Study of the Influence of Aerodynamic Loads on the Forces Exchanged in a Twistlock Corner Casting Connection of Flat-Wagons", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 55, 2016. doi:10.4203/ccp.110.55

Keywords: rollover, critical wind curves, freight trains, modelling, twistlock.

Summary

In this paper cross-wind effects on freight wagons are studied. A mathematical model of a freight train made up of a flat-car and one or two containers has been built defining the dynamical characteristics of the connection (twistlock-corner casting). Wind tunnel tests on a scaled model are then used to define the aerodynamic coefficients of the wagon, both in loaded and unloaded conditions, considering different trainset layouts. Wind forces are finally applied separately to the container and the flat-car in order to define the CWC of the wagon and to verify the maximum forces exchanged through the twistlock-corner casting connection. The results of the analysis showed that severe conditions with respect to the risk of rollover can be found as a result of a succession of empty and loaded wagons.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 110 PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 55 A Study of the Influence of Aerodynamic Loads on the Forces Exchanged in a Twistlock Corner Casting Connection of Flat-Wagons E. Di Gialleonardo, S. Melzi, F. Resta and G. Tomasini Dipartimento di Meccanica, Politecnico di Milano, Italy doi:10.4203/ccp.110.55 purchase the full-text of this paper Full Bibliographic Reference for this paper E. Di Gialleonardo, S. Melzi, F. Resta, G. Tomasini, "A Study of the Influence of Aerodynamic Loads on the Forces Exchanged in a Twistlock Corner Casting Connection of Flat-Wagons", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 55, 2016. doi:10.4203/ccp.110.55 Keywords: rollover, critical wind curves, freight trains, modelling, twistlock. Summary In this paper cross-wind effects on freight wagons are studied. A mathematical model of a freight train made up of a flat-car and one or two containers has been built defining the dynamical characteristics of the connection (twistlock-corner casting). Wind tunnel tests on a scaled model are then used to define the aerodynamic coefficients of the wagon, both in loaded and unloaded conditions, considering different trainset layouts. Wind forces are finally applied separately to the container and the flat-car in order to define the CWC of the wagon and to verify the maximum forces exchanged through the twistlock-corner casting connection. The results of the analysis showed that severe conditions with respect to the risk of rollover can be found as a result of a succession of empty and loaded wagons. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £85 +P&P)
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