구동축과 연관된 차량의 부밍 소음 저감을 위한 중공축 개발 기법

Development Technique of Tubular Shaft for Reduction of Booming Noise in Vehicle Interior Caused by Drive Shaft

  • 고강호 (대우자동차 기술연구소) ;
  • 최현준 (대우자동차 기술연구소) ;
  • 김영호 (대우자동차 기술연구소)
  • 발행 : 2000.11.16

초록

In order to reduce the booming noise caused by first bending mode of drive shaft, this paper proposes a simulation program for prediction of the bending mode frequency of any tubular shaft. This program consists of a pre-processor for modeling of geometrical shape of drive shaft and applying the boundary conditions of various joints, a processor for constructing of global finite element matrices using beam elements and an eigen-solver based on MATLAB program. Using this simulation program, the effective and accurate FE model for a shaft attached in vehicle can be obtained by aid of database for stiffness of each joint. Thus the resonance frequencies and mode shapes of a shaft can be calculated accurately. Because the effect of the resonance on interior noise can be verified, more improved shaft can be proposed at the early stage of design.

키워드