한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 2003년도 추계학술대회 논문집 Vol.16
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- Pages.439-442
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- 2003
Steel beam의 진동감쇠 특성평가
Estimation of Vibration-damping Properties for Steel Beam
- Shin, Su-Hyun (YeungNam Uni.) ;
- Nam, Hyo-Duk (YeungNam Uni.) ;
- Jung, Sung-Soo (KRISS) ;
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Lee, Young-Bong
(KRISS)
- 발행 : 2003.11.13
초록
The test method of ASTM E 756 and JIS G 0602 to estimate vibration-damping properties is presented. Measurement 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. The cause of measurement error is also presented.