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Analytical and Experimental Studies on the Natural Frequency of a Composite Train Carbody

복합재 철도차량 차체 고유진동수에 대한 해석 및 시험적 연구

  • 정종철 ((주)한국화이바 철도차량사업부) ;
  • 조세현 ((주)한국화이바 철도차량사업부) ;
  • 서승일 (한국철도기술연구원 기존철도기술개발사업단) ;
  • 김정석 (한국철도기술연구원 기존철도기술개발사업단)
  • Published : 2006.04.01

Abstract

This paper explains analytical and experimental studies to evaluate the natural frequency of a composite carbody of Korean tilting train. The composite carbody with length of 23m was manufactured as a sandwich structure composed of 40mm-thick aluminium honeycomb core and 5mm-thick woven fabric carbon/epoxy face. From the finite element analysis, the 1st bending and 1st twisting natural frequency of the composite carbody were 11.67Hz and 14.4Hz, respectively. In order to verify the analytical results, the natural frequency measuring tests were performed. The measured 1st bending and twisting natural frequencies of the composite carbody were 10.25Hz and 11.0Hz, respectively. Both of these results satisfied the design requirement.

Keywords

Tilting Train;Composite Train Carbody;Natural Frequency;Bending Mode;Experimental Study

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