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

  • 2003.11a
  • /
  • Pages.700-703
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  • 2003
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Test method comparison for vibration-damping of materials

물질의 진동감쇠 시험법 비교

  • 신수현 (한국표준과학연구원 음향ㆍ진동그룹) ;
  • 이용봉 (한국표준과학연구원 음향ㆍ진동그) ;
  • 정성수 (한국표준과학연구원 음향ㆍ진동그) ;
  • 조승일 (한국표준과학연구원 음향ㆍ진동그룹)
  • Published : 2003.11.01
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Abstract

The test method of ASTM E 756 and KS D 0076 to estimate vibration-damping properties is compared. Comparison method depending on specimen support, exciting method and calculation method for loss factor is used. Half-power bandwidth method and vibration decay method is used in the calculation method for loss factor, and Young's modulus is decided by geometric character and density for specimen and resonance frequency. Vibration measurement sensor is compared by using non-contact displacement detector, velocity detector and accelerometer. This paper is also presented the matter which is able to cause error in the measurement

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