Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2008.04a
  • /
  • Pages.189-195
  • /
  • 2008
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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A Study on the improvement of damping and optimal design of beam flexure for the passive vibration isolator

수동형 음강성 저주파 제진기의 감쇠 성능 향상과 빔 유연체의 최적 설계에 관한 연구

  • 이길용 (서울대학교 기계항공공학부 대학원) ;
  • 장희도 (서울대학교 기계항공공학부 대학원) ;
  • 박영호 (서울대학교 기계항공공학부 대학원) ;
  • 박인황 (서울대학교 기계항공공학부) ;
  • 한동철 (서울대학교 기계항공공학부)
  • Published : 2008.04.17
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Abstract

The vibration isolator system(VIS) which has very low natural frequency could be designed by applying an axial compressive force to the beam-column flexure(BCF). In this paper a new shape of the BCF is suggested. It has stepwise axially varying properties by viscoelastic damping layer. So it has internal structural damping by damping layer during deformation. First the analytic solution is obtained for the BCF. And its critical load, buckling mode, stiffness and stress distributions are investigated. Also the dynamic properties of the VIS consist of the damping layered BCF are studied. Finally the optimal design procedure of damping layered BCF for the VIS is suggested. The improved performance of suggested VIS is verified by some experiments.

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