Noise and Vibration Reduction of Double-Resiliently Mounted Pump-like Machinery

이중탄성지지된 펌프류 장비의 소음.진동 저감

  • 김현실 (한국기계연구원 음향소음팀) ;
  • 김재승 (한국기계연구원 음향소음팀) ;
  • 강현주 (한국기계연구원 음향소음팀) ;
  • 김봉기 (한국기계연구원 음향소음팀) ;
  • 김상렬 (한국기계연구원 음향소음팀)
  • Published : 2006.11.16

Abstract

In this paper, noise and vibration reduction of double-resiliently mounted pump-like machinery is studied. SBN(Structure-borne noise) reduction through upper and lower mount is analyzed by assuming that the system is modeled as a mass-spring system. In addition, the impedance of the floor is included in the prediction. The comparison of the SBN difference through upper mount show that the effect of impedance is negligible, while the measurement differs significantly from the prediction for high frequency range. It is found that the assumption of point mass-spring system leads to the disagreement between prediction and measurements.

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