Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Analysis of Vibration Parameters for the Fault Diagnosis of Reduction Unit for High-speed Train

고속철도차량 감속기 결함진단을 위한 진동 파라미터 분석

  • Kim, Jae Chul (High-speed Railroad System Research Center, Korea Railroad Research Institute) ;
  • Ji, Hae Young (Department of Railway System Engineering, Science & Technology Univ.) ;
  • Lee, Kang Ho (High-speed Railroad System Research Center, Korea Railroad Research Institute) ;
  • Moon, Kyung Ho (High-speed Railroad System Research Center, Korea Railroad Research Institute) ;
  • Seo, Jung-Won (High-speed Railroad System Research Center, Korea Railroad Research Institute)
  • 김재철 (한국철도기술연구원 고속철도연구본부) ;
  • 지해영 (과학기술연합대학원대학교 철도시스템공학과) ;
  • 이강호 (한국철도기술연구원 고속철도연구본부) ;
  • 문경호 (한국철도기술연구원 고속철도연구본부) ;
  • 서정원 (한국철도기술연구원 고속철도연구본부)
  • Received : 2013.04.15
  • Accepted : 2013.06.25
  • Published : 2013.07.01
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Abstract

The reduction unit is one of the most important components in railway cars, due to the transmission of torque from the motor to the wheels. Faulty reduction gears in high-speed trains result from excessive wear on the gear or damage to the gear. These types of gear defects have a significant effect on high-speed rail operation and safety; thus, a diagnosis system for the reduction unit is needed. Vibration diagnosis technology is one of the most effective diagnostics. In this paper, the vibration parameters of a reduction unit were evaluated during a driving-gear test and a full-vehicle test, using kurtosis and the crest factor. These tests were performed under normal operating conditions; a specimen tester was used to diagnose problems in defective gears.

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References

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