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http://dx.doi.org/10.5762/KAIS.2015.16.11.7934

The Study on the Standardization of the Maximum Acceleration of the Electric Multiple Unit through the Analysis of the Traction and the Adhesion Characteristics  

Kim, Jungtai (Metropolitan Transportation Research Center, Korea Railroad Research Institute)
Kim, Moo Sun (Metropolitan Transportation Research Center, Korea Railroad Research Institute)
Ko, Kyeongjun (Future Strategy Center, Korea Railroad Research Institute)
Jang, Dong Uk (Metropolitan Transportation Research Center, Korea Railroad Research Institute)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.11, 2015 , pp. 7934-7940 More about this Journal
Abstract
The raise of the acceleration can be one of possible methods to increase the scheduled speed of the metropolitan railway system. It is possible to raise the acceleration to the some point by increasing the traction power of the motor. However, there is a limit of the acceleration because the traction power over some level related to the adhesion causes a slip, which prevents from accomplishing the target acceleration. The running resistance is also an important factor to consider. Both the adhesion and the running resistance as well as the traction power vary according to the velocity. Therefore, the standardization of the acceleration needs the analysis of these factors as a function of velocity. In this study, we focus on the advanced urban transit unit(AUTS) for the standardization. We derive a novel equation of the adhesion suitable for the AUTS by investigation of the traction and adhesion equation as well as the experiment data. And finally we propose the standard of the acceleration based on this analysis.
Keywords
Acceleration; Adhesion; Electric Multiple Unit; Running Resistance; Traction;
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Times Cited By KSCI : 2  (Citation Analysis)
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