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http://dx.doi.org/10.7782/JKSR.2016.19.5.565

Analysis of Vehicle Dynamic Performance after Wheel Reprofiling  

Hur, Hyunmoo (Korea Railroad Research Institute)
Ahn, Dahoon (Korea Railroad Research Institute)
Youn, Suksoon (Seoul Metropolitan Rapid Transit Corporation)
Choi, Yongwoon (Seoul Metropolitan Rapid Transit Corporation)
Publication Information
Journal of the Korean Society for Railway / v.19, no.5, 2016 , pp. 565-575 More about this Journal
Abstract
Wheel reprofiling is frequently conducted to remove faults such as flange wear, flat areas, and cracks that occur in railway vehicle operation. We analyzed the dynamic performances of a vehicle before and after wheel reprofiling to grasp the influence of reprofiling on the dynamic behavior of the vehicle. We measured the wheel profile of the test vehicle and conducted a running test to analyze the vibration and comfort characteristics of the test vehicle. The result of the test indicated that vibration of the test vehicle after wheel reprofiling was reduced compared to that before wheel reprofiling. And, comfort level of the test vehicle after wheel reprofiling was improved by about 3dB laterally and vertically. Consequently, the positive effect of wheel reprofiling on the dynamic performance of vehicle was verified.
Keywords
Wheel; Reprofile; Profile; Vibration; Comfort;
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