Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Torsional free vibration analysis of heavy duty powertrain

대형트럭 구동계의 비틀림 자유진동해석

  • Ahn, Byoung-Min (Dept.of Precision Mechanical Engineering, Graduate School of Chonbuk National University) ;
  • Hong, Dong-Pyo (Automotive New Technology Research Center, Dept.of Mechanical Engineering, Chonbuk National University)
  • 안병민 (전북대학교 대학원 정밀기계공학과) ;
  • 홍동표 (전북대학교 기계공학부, 자동차신기술연구소)
  • Published : 1998.02.01
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Abstract

Automobile company tries to reduce the inertia of powertrain to increase the fuel efficiency and increase the engine power every year to make the high speed driving possible at full load condition. These cause the torsional vibration of powertrain. But the demand about ride comfort improvement is increased constantly, so torsional vibration of powertrain become an emergency problem to be cured. This study is a basic research to reduce the torsional vibration of powertrain at driving condition. First, the heavy duty powertrain is characterized as a vibrating system. Its natural frequencies and mode shapes are reviewed. Second, by comparison of simulation results and experiment results, validity of developed model is verified. Finally, the couterplan which can reduce the torsional vibration by mode analysis and parameter modification is suggested.

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