Proceedings of the KSR Conference (한국철도학회:학술대회논문집)

The Korean Society for Railway (한국철도학회)
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A Study on the Development of MFI(Multi Fluid Injection) System and its Effect to Reduce the Noise of Subway

도시철도 소음저감을 위한 MFI(Multi Fluid Injection) 시스템 개발 및 효과에 관한 연구

  • 박종화 (부산교통공사 시설사업소, 선로보수팀) ;
  • 김대석 (부산교통공사 시설사업소, 선로보수팀) ;
  • 김희오 (부산교통공사 시설사업소, 선로보수팀) ;
  • 심재규 (부산교통공사 시설사업소, 선로보수팀)
  • Published : 2011.05.26
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Abstract

The noise of the subway has become a social issue and includes very complex reasons. The friction between rail and train wheel is the most important reason of the noise. In this study, we developed MFI(Multi Fluid Injection) System which sprays the mixed fluid(water, anticorrosive and lubricant) on the rail when the train is approaching to reduce the friction. To verify the system's effect, we measured the internal and external noise of the running train. The measured and analyzed results show that MFI system reduce the noise of the running subway.

Keywords