Analysis of Curve Squeal Noise for Busan Metro Line 3

부산 도시철도 3호선 차량 곡선부 스퀼소음 특성

  • Hong, Do-Kwan (Electric Motor Research Center, Korea Electrotechnology Research Institute) ;
  • Ahn, Chan-Woo (Department of Mechanical Engineering, Dong-A Univ.) ;
  • Han, Geun-Jo (Department of Mechanical Engineering, Dong-A Univ.) ;
  • Gang, Hyeon-Uk (Graduate School, Department of Mechanical Engineering, Dong-A Univ.)
  • 홍도관 (한국전기연구원 전동력연구센터) ;
  • 안찬우 (동아대학교 기계공학과) ;
  • 한근조 (동아대학교 기계공학과) ;
  • 강현욱 (동아대학교 기계공학과 대학원)
  • Received : 2010.10.21
  • Accepted : 2011.01.14
  • Published : 2011.04.01

Abstract

This paper deals with the measurement and analysis of the squeal noise according to the curvature of rail. The squeal noise is generated by the friction between the railway with curve and the wheel. The squeal noise is a big problem in Busan Metro Line 3. If the developing panel type ANC(Active Noise Control) system which is attached to the floor can reduce 5 dB in below 500 Hz, the sound pressure level of the whole band pass can be reduced about 4-4.8 dB in squeal noise above the curvature of R400. Curve squeal noise is the intense high frequency tonal that can occur when a railway vehicle transverses a curve. The frequency range is from around 500 to almost 20,000 Hz, with noise levels up to about 15 dB in curve.

Keywords

References

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