Interior noise characteristic and contribution analysis for rolling stocks

전동차 실내소음특성 및 기여도 분석

  • 정승원 (대우중공업(주) 철도차량연구소) ;
  • 이용관 (대우중공업(주) 철도차량연구) ;
  • 박석태 (고등기술연구원 설계기술연구) ;
  • 김경환 (고등기술연구원 설계기술연구실)
  • Published : 1999.05.01

Abstract

The purpose of this research is to setup the design procedure of low noise rolling stocks. Noise sources are identified at a field test, and the contribution of noise sources to each part of car interior is ensured by sound intensity measurement technique. Added material to each section of the carbody makes it possible to identify absorption or reflection performance of each part to the anterior random noise. Such experimental tests to the exterior noise intruding through the floor represent that the best countermeasure on the floor is to implement reflecting material which can properly interfere noise. Design procedure of low noise rolling stocks is set through several experiments.

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