Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지

Measurement of Near Field Sound Intensity and Loss Factor Using Plate Intensity Measurement

평판 인텐시티 측정을 통한 근접장 음향 인텐시티와 손실 계수 측정법

  • 김용조 (한국과학기술원 기계공학과 소음진동제어연구센터) ;
  • 김양한 (한국과학기술원 기계공학과)
  • Published : 1997.08.01
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Abstract

A energy equation for a thin plate and surrounding fluid is derived. The equation essentially determines the relation between internal loss of thin plate, energy of acoustic radiation, and structure intensity. We attempted to use this relation to measure internal loss of thin plate. The significance of this approach is that internal loss at any point of a thin plate can be measured. The quality of this measure is dicated by the accuracy of associated measurement systems such as structure and acoustic intensity measurements. A strain gauge bridge system has been developed to measure structure intensity of thin plate. Its performance is tested by experiments.

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References

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