한국원자력학회:학술대회논문집 (Proceedings of the Korean Nuclear Society Conference)
- 한국원자력학회 1995년도 추계학술발표회논문집(2)
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- Pages.1001-1007
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- 1995
Comprehensive Vibration Assessment Program for Yonggwang Nuclear Power Plant Unit 4
- Huinam Rhee (Korea Atomic Energy Research Institute) ;
- Hwang, Jong-Keun (Korea Atomic Energy Research Institute) ;
- Kim, Tae-Hyung (Korea Atomic Energy Research Institute) ;
- Kim, Jung-Kyu (Korea Atomic Energy Research Institute) ;
- Song, Heuy-Gap (Korea Atomic Energy Research Institute) ;
- Kim, Beom-Shig (Korea Atomic Energy Research Institute)
- 발행 : 1995.05.01
초록
A Comprehensive Vibration Assessment Program (CVAP) has been performed for Yonggwang Nuclear Power Plant Unit 4 (YGN 4) in order to verify the structural integrity of the reactor internals for flow induced vibrations prior to commercial operation. The theoretical evidence for the structural integrity of the reactor internals and the basis for measurement and inspection are provided by the analysis. Flow induced hydraulic loads and reactor internals vibration response data were measured during pre-core hot functional testing in YGN 4 site. Also, the critical areas in the reactor internals were inspected visually to check any existence of structural abnormality before and after the pre-core hot functional testing. Then, the measured data have been analyzed and compared with the predicted data by analysis. The measured stresses are less than the predicted values and the allowable limits. It is concluded that the vibration response of the reactor internals due to the flow induced vibration under normal operation is acceptable for long term operation.
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