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C. Somaschini, D. Rocchi, G. Tomasini, P. Schito, "Simplified Estimation of Train Resistance Parameters: Full Scale Experimental Tests and Analysis", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 58, 2016. doi:10.4203/ccp.110.58

Keywords: train running resistance, full scale tests, regression method, speed history method, coasting tests.

Summary

A CEN standard (EN 14067-4, 2005) describes the methodologies for the assessment of the running resistance of railway vehicles starting from full-scale test measurements. According to this standard, the speed dependent terms of the equation of Davis have to be determined by means of coasting tests. In this paper, a new method to estimate the running resistance coefficients from a full-scale coasting test is proposed and compared with the two methods proposed in the CEN standard (the regression method and the speed history identification method). The main advantage of this new method is that it does not require the railway line characteristics to be known and it will be shown that the new method is able to evaluate the coefficients with an accuracy equivalent to that of the other methods considered.

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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 58 Simplified Estimation of Train Resistance Parameters: Full Scale Experimental Tests and Analysis C. Somaschini, D. Rocchi, G. Tomasini and P. Schito Department of Mechanical Engineering, Politecnico di Milano, Italy doi:10.4203/ccp.110.58 purchase the full-text of this paper Full Bibliographic Reference for this paper C. Somaschini, D. Rocchi, G. Tomasini, P. Schito, "Simplified Estimation of Train Resistance Parameters: Full Scale Experimental Tests and Analysis", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 58, 2016. doi:10.4203/ccp.110.58 Keywords: train running resistance, full scale tests, regression method, speed history method, coasting tests. Summary A CEN standard (EN 14067-4, 2005) describes the methodologies for the assessment of the running resistance of railway vehicles starting from full-scale test measurements. According to this standard, the speed dependent terms of the equation of Davis have to be determined by means of coasting tests. In this paper, a new method to estimate the running resistance coefficients from a full-scale coasting test is proposed and compared with the two methods proposed in the CEN standard (the regression method and the speed history identification method). The main advantage of this new method is that it does not require the railway line characteristics to be known and it will be shown that the new method is able to evaluate the coefficients with an accuracy equivalent to that of the other methods considered. 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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