한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2002년도 추계학술대회논문초록집
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- Pages.390.1-390
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- 2002
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- 1598-2548(pISSN)
관막음된 증기발생기 전열관의 유체유발진동 특성 평가
Estimation of Flow-induced Vibration Characteristics on Plugged Steam Generator Tube
- Cho, Bong-Ho (Chonbuk National University) ;
- Ryu, Ki-Wahn ;
- Park, Chi-Yong ;
- Park, Su-Ki (KEPRI)
- 발행 : 2002.11.01
초록
In this study, we investigate the plugging effect on the CE type steam generator tube. The natural frequency and mode shape will be changed due to decrease of the effective mass distribution along the tube. We compared the variation of stability ratio for plugged tube with that fur unplugged one. The natural frequency increased because of removing the cooling water inside the steam generator tube, but the stability ratio decreased inversely because of changing the vibrational mode shape. We also investigated the turbulent excitation effect.
키워드