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http://dx.doi.org/10.5762/KAIS.2016.17.9.493

Development and performance evaluation of traction system for steep gradient and sharp curve track  

Seo, Sungil (New Transportation System Research Center, Korea Railroad Research Institute)
Mun, Hyung-Suk (New Transportation System Research Center, Korea Railroad Research Institute)
Moon, Ji-Ho (New Transportation System Research Center, Korea Railroad Research Institute)
Suk, Myung-Eun (New Transportation System Research Center, Korea Railroad Research Institute)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.9, 2016 , pp. 493-501 More about this Journal
Abstract
In this study, core technologies of a traction system on a mountain tram operating on the track of mountain road full of sharp curves and steep gradients were developed. In domestic mountain resort areas, sometimes the transportation service is not provided in winter because of ice and heavy snow on roads, so a mountain railway service independent of the climate and geographic conditions is needed. A traction system was designed taking into account of the power of a traction motor to climb the gradient of 120 ‰, which is common in domestic mountainous areas. and power transmission system was designed to consider the installation space for the traction system. In addition, a reduction gear and a propeller shaft were developed. An elastic pinion was developed and applied to the rack & pinion bogie system for steep gradient so that noise and vibration generated by contact between the steel gears could be reduced. Impact comparison tests showed that the vibration level of the elastic pinion is one-third lower than that of previous steel pinion. Independent rotating wheels and axles were developed for the bogie system to operate on the sharp curve of a 10 meter radius. In addition, the band braking system was developed to enhance the braking force during running on the steep gradient. A test for the braking force showed it exerts the required braking force. The performance of the developed core components were verified by the tests and finally they were applied to the bogie system running on the track of steep gradient and sharp curve.
Keywords
band brake system; elastic pinion; steep gradient; independent rotating wheel; mountain tram; rack&pinion bogie system; sharp curve;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 N. P. Christos, Railway Transportation Systems, Design, Construction, Operation, CRC Press, pp. 237-250, 2016.
2 S. I. Seo, J. G. Kim, H. S. Jung, A study on the applicability of newly developed stainless steel for weight reduction of carbody of intermodal tram, J. of the Korea Academia-Industrial cooperation Society, vol. 17, no. 3, pp. 457-463, 2016. DOI: http://dx.doi.org/10.5762/KAIS.2016.17.3.457   DOI
3 S. I. Seo, et al., "State-of-arts of technologies on mountain railway and proposal of concept design of mountain tram", Railway J., The Korean Society for Railway, vol. 15, no. 6, pp. 53-58, 2012.
4 M. H. Hwang, K. M. Yun, S. C. Kim, N. H. Lim, A study on the optimized cross-section of embedded rail system, J. of the Korea Academia-Industrial cooperation Society, vol. 15, no. 4, pp. 2511-2518, 2014. DOI: http://dx.doi.org/10.5762/KAIS.2014.15.4.2511   DOI
5 MOLT, Technical Specifications for Urban Railway Vehicles, Enforcement 2014-434, KRTS-VE-Part51, Ministry of Land and Transport, pp. 37-50, 2014.
6 S. H. Kim, Introduction of railway system, Jajak Academy, pp. 100-120, 2007.
7 S. I. Seo, H. S. Mun, "Development of a low vibration rack&pinion traction system for more comfortable cabin on mountain tram", J. of Korean Society of Hazard Mitigation, vol. 15, no. 3, pp. 23-26, 2015. DOI: http://dx.doi.org/10.9798/KOSHAM.2015.15.3.23   DOI
8 S. M. Jung, D. C. Han, Standard machine design, Dongmyungsa, pp. 691-695, 1983.