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논문 기본 정보
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- 학술저널
- 저자정보
- 발행연도
- 2012.12
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- 1,948 - 1,952 (5page)
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이 논문의 연구 히스토리 (3)
2012
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The paper presents modal testing and analysis in order to obtain the dynamic characteristics of a middle spacer grids of a nuclear fuel rod. A spacer grid is one of the important structural elements supporting nuclear fuel rods. Such a fuel rod can be oscillated by its thermal expansion, neutron irradiation and etc. due to cooling water flow under the operation of a nuclear power plant. When the fuel rod vibrates, fretting wear due to repeated friction motion between the fuel rods and spacer grids can be occurred, and so the fuel rod is damaged. In this paper, through modal analysis and testing, natural frequencies and modes of a middle spacer grid were calculated, and the following conclusions were obtained. Firstly the numerical first-seven natural frequencies for spacer grids of a fuel rod having complicated structures have a small difference within 3.8% with experimental natural frequencies, and so the suitability of simulation results was verified. Secondly, experimental mode shapes for a middle spacer grid of a nuclear fuel rod were verified by obtaining lower non-diagonal terms through MAC(Modal Assurance Criteria), and were confirmed by the simulation modes.
목차
Abstract
1. 서론
2. 본론
3. 결과해석 및 고찰
4. 결론
참고문헌
참고문헌 (10)
참고문헌 신청
1. [학술지(정기간행물)] - Paidoussis, M. P. / 1970 / Dynamics of Tubuler Cantilevers Conveying Fluid / Journal of Mechanical Engineering Science 12 : 85 ~ 103
2. [학술지(정기간행물)] - Sugiyama, Y. / 1985 / Effect of a Spring Support on the Stability of Pipes Conveying Fluid / Journal of Sound and Vibration 100 : 257 ~ 270
3. [학술지(정기간행물)] - Song, S. H. / 1994 / Experimental Modal Analysis on the Core Support Barrel of Reactor Internals Using a Scale Model / KSME International Journal 13 (8) : 585 ~ 594
4. [학술지(정기간행물)] - Walton, L. A. / 1979 / Zircaloy Spacer Grid Design / Transactions of the American Nuclear Society 32 : 601 ~ 602
5. [학술지(정기간행물)] - Larson. J. G. / 1982 / Optimization of The Zircaloy Spacer Grid Design / Transactions of the American Nuclear Society 43 : 160 ~ 161
2. [학술지(정기간행물)] - Sugiyama, Y. / 1985 / Effect of a Spring Support on the Stability of Pipes Conveying Fluid / Journal of Sound and Vibration 100 : 257 ~ 270
3. [학술지(정기간행물)] - Song, S. H. / 1994 / Experimental Modal Analysis on the Core Support Barrel of Reactor Internals Using a Scale Model / KSME International Journal 13 (8) : 585 ~ 594
4. [학술지(정기간행물)] - Walton, L. A. / 1979 / Zircaloy Spacer Grid Design / Transactions of the American Nuclear Society 32 : 601 ~ 602
5. [학술지(정기간행물)] - Larson. J. G. / 1982 / Optimization of The Zircaloy Spacer Grid Design / Transactions of the American Nuclear Society 43 : 160 ~ 161
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UCI(KEPA) : I410-ECN-0101-2014-560-000832135