Vibration Analysis and Mitigable Countermeasures of Semi High-speed Subway Electric Trains

준고속 도시철도의 진동분석 및 저감대책

  • 박기수 (성균관대학교 대학원 기계공학부) ;
  • 최연선 (성균관대학교 기계공학부)
  • Published : 2008.10.20


Subway electric trains need to be faster for accommodation of long distance passengers. The faster run of the existing trains results in deterioration of ride quality due to noise and vibration. To reduce the noise and vibration of the electric train, a running test of the electric train was performed and an ADAMS/Rail model was set up to verify the running test results. The experimental results show that the sources of the cabin noise and vibration basically comes from the irregularity of the railroad track and the deterioration of the connection part between cabin and bogie. Consequently for mitigation of noise and vibration of the electric train, the redesign of the center pivot with softer stiffness and the minimization of rail irregularity are necessary. the frequent maintenance of the train will lead to better comport.


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