Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Indentification of Noise Source of a Diesel Engine using Complex Acoustic Intensity Method

복소음향인텐시티법을 이용한 디젤엔진의 소음원 규명

  • 오재응 (정회원, 한양대학교 공과대학 기계공학부) ;
  • 김상헌 (한국생산기술연구원 산업기술시험평가연구소) ;
  • 한광희 (한양대학교 대학원)
  • Published : 1998.01.01
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Abstract

The relation between the vibration induced from machinery and the radiated sound is complicated. Acoustic intensity method is widely used to obtain the accuracy of noise identification. In this study, as groundwork, the complex acoustic intensity method is performed to identify noise source and transmission path on different free space point source fields. From the numerical analysis for these simple fields, it is possible to predict the sound field characteristics which noise sources are related with each other, and certificate the validity of complex acoustic intensity. As an industrial application, the complex acoustic intensity method is applied a diesel engine to identify sound radiation characteristics in the near field.

Keywords

References

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