소음/진동을 고려한 철도 감속기 개발에 대한 연구

A Study on Development of Railway Reducer for Low Noise/Vibration

  • 이형우 (부산대학교 기계기술연구소) ;
  • 박노길 (부산대학교 기계공학부)
  • 발행 : 2004.02.01

초록

A dynamic model of railway reducer is developed by the lumped parameter method. The model accounts for shafts, bearings flexibilities, gyroscopic effects and the force couplings among the transverse and torsion motions due to gearing. Vibration/noise analysis as well as strength of gear teeth, and bearing life are considered. Excitation forces of railway reduction are considered as the mass unbalance of the rotors, misalignment and a function of gear transmission error which comes from the modified tooth surface. A campbell diagram, in which the excitation sources caused by the mass unbalance of the rotors, misalignment and the transmitted errors of the gearing are considered, shows that, at the operating speed, there are not the critical speed. The program which can be used to analyze and predict vibration/noise characteristics by mass unbalance, misalignment and gear transmission error of railway reduction is developed with this system model.

키워드

참고문헌

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