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A Study on the Characteristics of the Wheel/Roller Contact Geometry  

Hur, Hyun-Moo (한국철도기술연구원, 철도시스템안전연구본부)
Publication Information
Journal of the Korean Society for Railway / v.9, no.5, 2006 , pp. 618-623 More about this Journal
Abstract
Understanding the contact between wheel and rail is a starting point in railway vehicle dynamic research area and especially analysis for the contact geometry between wheel and rail is important. On the one hand, the critical speed as the natural characteristics of rolling-stock is generally tested on the roller rig. The geometrical characteristics of the wheel/roller contact on the roller rig are different from these of the general wheel/rail contact because the longitudinal radius of roller is not infinite compared with rail. Thus, in this paper we developed the algorithm to analyze the wheel/roller contact geometry of our roller rig which is constructed now and analyzed the difference between whee/roller contact and wheel/rail contact. In conclusion, we found that the yaw motion of wheelset and the roller radius influence the geometrical contact parameters in wheel flange contact area.
Keywords
Bogie roller rig; Contact geometry; Contact geometrical parameter; Roller; Wheel; Wheel profile;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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