한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2004년도 추계학술대회 논문집
- /
- Pages.842-847
- /
- 2004
열차주행안전을 고려한 궤도패드의 최소 수직 스프링계수 결정에 관한 연구
A study on determining the minimum vertical spring stiffness of track pad considering running safety.
- 발행 : 2004.10.01
초록
This study presents the minimum spring stiffness of resilient track pad considering the safety of running train. A nonlinear static 3-D finite element is used for the modeling of railway superstructure, especially for the reflection of nonlinear resistance of rail fastening system. Moreover, ballast is considered as an elastic foundation. As the input load, eccentric wheel and lateral force are used and they are derived from ' Lateral-force/Wheel-load Estimation Equations '. Analysis results are compared with following two values : allowable lateral displacement of rail head (derived from the geometrical derailment evaluation of wheel/rail) and operation standard value (derived from the field test results of track).
키워드