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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.7
- 수록면
- 619 - 625 (7page)
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Since the fuel is always exposed to turbulent flow, the grid strap shows flow induced vibration characteristics that impact on the nuclear fuel soundness. The dynamic behavior of grids in nuclear fuels is quite complex, since two pairs of spring and dimple support are contacted with rods by friction in the limited space. This paper focuses on investigation of the grid strap(test fuel strap, TFS) vibration in one cell. TFS consists of a single spring and double dimples. To identify the grid strap vibration, modal analysis of the strap is performed using finite element method(FEM). Modal testing on a $5{\times}5$ grid structure without rods is performed. The modal testing results are compared to analytic results. In addition, random test considering rod effect is performed about a $5{\times}5$ grid with rods under real contact condition in the air. Finally, the strap vibration of a $5{\times}5$ fuel bundle in investigation of flow induced vibration(INFINIT) facility is measured in real fluid velocity condition without heating. It is shown that modal frequencies from the test are almost equal to those peak frequencies in the INFINIT test.
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참고문헌 (7)
참고문헌 신청
1. [학술대회논문] - Kato, M. / 1988 / Field Vibration Test of PWR Nuclear Power Plant Reactor Coolant Loop / Proceedings of Ninth World Conference on Earthquake Engineering 6 : 723 ~ 728
3. [학술지(정기간행물)] - KI-WAHN RYU / 2010 / Effects of Support Structure Changes on Flow-induced Vibration Characteristics of Steam Generator Tubes / Nuclear Engineering and Technology 42 (1) : 97 ~ 108
4. [단행본] - Batel, M. / 2002 / Operational Modal Analysis Another Way of Doing Modal Testing / Sound and Vibration : 22 ~ 27
5. [학술대회논문] - Ha, D. G. / 2011 / Optimal Experiment Environment for Flow-induced High Frequency Vibration Test Facility / Transaction of the Korean Nuclear Society Spring Meeting : 313 ~ 314
6. [학술대회논문] - Kim, K. H. / 2011 / Investigation of Grid Strap Vibration Subjected to Axial Flow Condition / Transaction of the Korean Nuclear Society Autumn Meeting : 241 ~ 242
3. [학술지(정기간행물)] - KI-WAHN RYU / 2010 / Effects of Support Structure Changes on Flow-induced Vibration Characteristics of Steam Generator Tubes / Nuclear Engineering and Technology 42 (1) : 97 ~ 108
4. [단행본] - Batel, M. / 2002 / Operational Modal Analysis Another Way of Doing Modal Testing / Sound and Vibration : 22 ~ 27
5. [학술대회논문] - Ha, D. G. / 2011 / Optimal Experiment Environment for Flow-induced High Frequency Vibration Test Facility / Transaction of the Korean Nuclear Society Spring Meeting : 313 ~ 314
6. [학술대회논문] - Kim, K. H. / 2011 / Investigation of Grid Strap Vibration Subjected to Axial Flow Condition / Transaction of the Korean Nuclear Society Autumn Meeting : 241 ~ 242
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