| Boundary effect on the dynamic response of a 7-hexagon fuel ducts submerged in fluid | |
Peng Q(彭青)1,2 ; Su, X.3; Li, J.4; Gao, F.3; Liu XM(刘小明)1,2; Wei, Y. G.5
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| Corresponding Author | Liu, X.(xiaomingliu@imech.ac.cn) |
| Source Publication | NUCLEAR ENGINEERING AND DESIGN
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| 2020-12-15 | |
| Volume | 370Pages:10 |
| ISSN | 0029-5493 |
| Abstract | Understanding the dynamic response of core structure in a fast reactor under earthquake could provide a guideline for the reactor design. A core consists hundreds of ducts; this fact challenges full-scale experiments or simulations. A popular solution is to use a matrix of 7 ducts to represent the whole core, yet the effect of boundary constraint on the experiment or simulation representation has not been reported so far. In this article, two types (type 1 and type 2 as in graphical abstract) of boundary constraint, as a bracketing limit to the real world situation, has been investigated with a coupled acoustic-structural (CAS) model, and the effects of the gap size on the dynamics and the seismic response are explored. Results show that type 2 constraint exerts a stronger constraint than type 1 constraint does and synchronizes ducts with ground excitations. In addition, a smaller gap under type 1 boundary constraint reduces the eigenfrequencies and introduces stronger coupling effect between ducts. |
| Keyword | Hexagon bundle Seismic response Coupled acoustic-structure Finite element simulation Fluid-structure interaction |
| DOI | 10.1016/j.nucengdes.2020.110870 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000598781300005 |
| WOS Keyword | FINITE-ELEMENT FORMULATIONS ; CORE SEISMIC BEHAVIOR ; ADDED-MASS ; HEXAGONAL CYLINDERS ; PRESSURES ; VIBRATION |
| WOS Research Area | Nuclear Science & Technology |
| WOS Subject | Nuclear Science & Technology |
| Funding Project | National Natural Science Foundation of China[11772334] ; National Natural Science Foundation of China[11890681] ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; Youth Innovation Promotion Association CAS[2018022] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040501] |
| Funding Organization | National Natural Science Foundation of China ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; Youth Innovation Promotion Association CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Liu, X. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/85901 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.China Inst Atom Energy, Beijing 102413, Peoples R China; 4.China Earthquake Adm, Inst Engn Mech, Key Lab Earthquake Engn & Engn Vibrat, Harbin 150080, Peoples R China; 5.Peking Univ, Coll Engn, Beijing 100871, Peoples R China |
| Recommended Citation GB/T 7714 | Peng Q,Su, X.,Li, J.,et al. Boundary effect on the dynamic response of a 7-hexagon fuel ducts submerged in fluid[J]. NUCLEAR ENGINEERING AND DESIGN,2020,370:10. |
| APA | 彭青,Su, X.,Li, J.,Gao, F.,刘小明,&Wei, Y. G..(2020).Boundary effect on the dynamic response of a 7-hexagon fuel ducts submerged in fluid.NUCLEAR ENGINEERING AND DESIGN,370,10. |
| MLA | 彭青,et al."Boundary effect on the dynamic response of a 7-hexagon fuel ducts submerged in fluid".NUCLEAR ENGINEERING AND DESIGN 370(2020):10. |
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| Jp2021059.pdf（10500KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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