250km/h급 고속용 강체전차선용 이행장치의 동적해석 모델개발
Development of the Dynamic Behaviors of Transition Structure for High Speed Rigid Conductor Line over 250 km/h
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초록
In development of high speed Rigid conductor line(R-bar) over 250km/h, it is important to develop the method to anticipate the mechanical stability of the R-bar and of the transition structure which connects the flexible Overhead Contact Line. To do this, firstly, the FE(Finite Element) model for a transition structure was established and the initial deformed configurations due to gravitational force is obtained by a static analysis and the pantograph was modeled by a simplified mass-spring-damper system and the contact behavior between conductor and pantograph was defined by the penality method. Secondly, FE analysis results were reviewed with the test results of contact force between conductor and pantograph at the low speed of train. Finally, using the established analysis method, the evolution of contact forces was performed for a newly designed high speed R-bar and for its transition structure.
Abstract
In development of high speed Rigid conductor line(R-bar) over 250km/h, it is important to develop the method to anticipate the mechanical stability of the R-bar and of the transition structure which connects the flexible Overhead Contact Line. To do this, firstly, the FE(Finite Element) model for a transition structure was established and the initial deformed configurations due to gravitational force is obtained by a static analysis and the pantograph was modeled by a simplified mass-spring-damper system and the contact behavior between conductor and pantograph was defined by the penality method. Secondly, FE analysis results were reviewed with the test results of contact force between conductor and pantograph at the low speed of train. Finally, using the established analysis method, the evolution of contact forces was performed for a newly designed high speed R-bar and for its transition structure.
참고문헌 (8)
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- Bae, S. J., "A Study on Characteristics of Overhead Rigid Conductor System for Developing the High-speed System up to 250km", h, pp.64(3), 492~497
- 조용현, "400km", h급 전차선로용 드로퍼의 기계적 피로 수명 평가, 2016, pp.18(5), 665~673[DOI]
- Ahn, Y. H., "Study for Application of High Speed R-bar System in Metro Express Railway Tunnel", Proceeding of the Spring Conference of the Korean Society for Railway, pp.409~412 (2011)
- 김봉석, "250 km", h급 고속용 강체전차선 및 이행장치 I : 구조설계, 2016, pp.25(1), 7~13[DOI]
- 조용현, "유한요소법을 이용한 팬터그래프-전차선 동적상호작용 시뮬레이션 정식화 및 검증", 한국기계기술학회지, 18(4), pp.563~570 (2016), 한국기계기술학회[DOI]
- 이기천, "고속 전차선로 드로퍼에 대한 기계적 하중에 관한 연구", 한국철도학회논문집, 14(3), pp.222~227 (2011), 한국철도학회
- "EN 50318, Railway applications-validation of simulation of the dynamic interaction between pantograph and overhead contact line", BS EN, 11~12 (2002)