A Study on Lateral Damper for Improving Running Performance of Subway Vehicle

도시철도 전동차 주행성능 향상을 위한 횡댐퍼에 관한 연구

  • 전주연 (서울특별시도시철고공사, 철도전문대학원) ;
  • 허현무 (한국철도기술연구원) ;
  • 신유정 (한국철도기술연구원) ;
  • 유원희 (한국철도기술연구원) ;
  • 구정서 (서울과학기술대학교, 철도전문대학원)
  • Published : 2011.10.20

Abstract

As a secondary suspension, the air spring has not good lateral stiffness characteristics. In order to make up for this weak point, lateral damper is used between bogie and carbody. The lateral vibration of carbody can be reduced by the lateral damper. When the damping force of lateral damper becomes worse, the running stability and ride comfort of the railway vehicle go down. Simultaneously the lateral motion of carbody is increased. In this study, the lateral displacement of carbody was studied by the multibody dynamic analysis in accordance with lateral damping force to find the cause of abnormal noise(impact noise) when the vehicle is running. The suitable lateral damping force was reviewed in order not to generate abnormal noise.

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