한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제18권8호
  • /
  • Pages.805-815
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  • 2008
  • /
  • 1598-2785(pISSN)
  • /
  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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전달 경로 분석과 패널 기여도 분석을 이용한 휠로더의 실내소음 저감에 관한 연구

Interior Noise Reduction of Wheel Loader Using Transfer Path Analysis and Panel Contribution Analysis

  • 김보용 (서울대학교 대학원 기계항공공학부) ;
  • 신창우 (서울대학교 대학원 기계항공공학부) ;
  • 정원태 (서울대학교 대학원 기계항공공학부) ;
  • 박성용 (서울대학교 대학원 기계항공공학부) ;
  • 장한기 (두산인프라코어(주)) ;
  • 김성재 (두산인프라코어(주)) ;
  • 강연준 (서울대학교 대학원 기계항공공학부)
  • 발행 : 2008.08.20
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초록

Transfer path analysis(TPA) and panel contribution analysis(PCA) have been used widely to reduce interior noise of mechanical systems. TPA enables us to decompose interior noise into air-borne and structure-borne noises and estimate the path contribution of noise sources. PCA is also used to identify the noise contribution of each sub-panel in vibro-acoustic systems. In this paper, TPA and PCA are applied to wheel loader, one of the heavy construction equipments. Firstly, TPA for air-borne noise is conducted to estimate the contribution of air-borne sources using pressure transfer function. Thereafter, TPA for structure -borne noise is employed to verify the results of air-borne source quantification through the synthesis of two results. Secondly, PCA is performed by both TPA using pressure transfer function between panels inside the cabin and boundry element method(BEM) for the cabin of wheel loader with various boundary conditions. As a results, it was found that TPA conducted by experiments and PCA accomplished by both experiments and BEM are very effective methods in analyzing the path and contribution of the noises for reducing an interior noise level in the wheel loader system.

키워드

참고문헌

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