Composites Research

  • 제28권5호
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  • Pages.327-332
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  • 2015
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  • 2288-2103(pISSN)
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  • 2288-2111(eISSN)
한국복합재료학회 (The Korean Society for Composite Materials)
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탄소섬유 복합재료-금속 하이브리드 팬터그래프 상부암 설계

Design of CFRP-Metal Hybrid Pantograph Upper-arm

  • Jeon, Seung-Woo (School of Mechanical System Engineering, Chung-Ang University) ;
  • Han, Min-Gu (School of Mechanical Engineering, Chung-Ang University) ;
  • Chang, Seung-Hwan (School of Mechanical Engineering, Chung-Ang University) ;
  • Cho, Yong-Hyeon (High-Speed Railroad Research Center, Korea Railroad Research Institute) ;
  • Park, Chul-min (High-Speed Railroad Research Center, Korea Railroad Research Institute)
  • 투고 : 2015.10.07
  • 심사 : 2015.10.27
  • 발행 : 2015.10.31
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초록

본 연구에서는 고속철도 경량화를 위해 금속-탄소섬유 복합재료 하이브리드 팬터그래프에 대한 파라메트릭 연구를 수행하였다. 강철로 구성된 기존 팬터그래프의 고강성 및 경량화를 구현하기 위하여 금속 상부암의 내부와 외부를 적절한 두께로 가공하고 그 후 복합재료를 적층한 금속-탄소섬유복합재료 하이브리드 상부암을 설계하였다. 하이브리드 상부암의 구조강성과 질량 등을 고려하여 적절한 금속을 강철과 알루미늄으로 결정하였다. 각 설계 파라메터의 변화에 따른 구조의 강성 변화를 확인하기 위해 유한요소해석을 수행하였으며, 그 결과를 팬터그래프 CX-PG 모델에 접목시켜 실제 수직하중에 따른 강성과 질량 변화율을 도출하였다. 이러한 결과로부터 고강성, 경량화 팬토그래프 설계를 위한 적절한 형상조건을 제안하였다.

In this research, a parametric study was carried out to design a metal-carbon fiber reinforced plastics (CFRP) hybrid pantograph for weight reduction of high speed train (KTX). To design a light-weight and high-stiffness pantograph, some parts of the original steel upper arm was replaced by CFRPs with appropriate stacking sequences. For the parametric study, steel was replaced by aluminium considering structure stiffness and weight of hybrid upperarm of a pantograph. Finite element analysis (FEA) was performed for checking the structure stiffness with varying design parameters. Static vertical load stiffness and weight changing ratio were derived from real CX-PG pantograph model analyses. From the FEA results, the geometries of high-stiffness, light-weight pantograph have been suggested.

키워드

참고문헌

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