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http://dx.doi.org/10.5762/KAIS.2016.17.12.603

A Study on Critical Speed Enhancement of High-speed Train Passenger Car  

Jeon, Chang-Sung (High-speed Railroad Systems Research Team, Korea Railroad Research Institute)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.12, 2016 , pp. 603-610 More about this Journal
Abstract
Over 12 years have passed since the first commercial operation of a Korean high-speed train. Since then, the transport capacity of the high-speed lines has become almost saturated. Therefore, studies have been carried out to increase the operating speed of the trains in order to increase their transportation capacity. This study was carried out to improve the critical speed of the KTX-Sancheon, Korean high-speed train, in order to increase its operating speed. A dynamic analysis of the KTX-Sancheon train was performed using the contact data obtained from the wheel wear profiles that were measured from a KTX-Sancheon train in commercial operation. The analysis results were verified by comparing them with the measurement acceleration data obtained from KTX-Sancheon. The suspension parameters were optimized to improve the operation speed. The critical speed of KTX-Sancheon was increased by 9.4% after the optimization by the response surface method. The optimized suspension parameters are expected to be used for the new bogie design to increase the operating speed of KTX-Sancheon from 300km/h to 350km/h.
Keywords
Conicity; Critical speed; High-speed train; KTX-sancheon; Optimization;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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