Nonlinear model for assessing seismic resilience in nuclear fuel assemblies
文献类型：期刊论文
| 作者 | Jin, Yuran1,4 ; Tan, Ximing3; Peng, Qing4; Wang, Jun3; Song, Jingru4; Liu, Xiaoming1,4; Wei, Yueguang2; Song JR(宋晶如); Peng Q(彭青); Song JR(宋晶如)
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| 刊名 | NUCLEAR ENGINEERING AND DESIGN
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| 出版日期 | 2024-08-01 |
| 卷号 | 424页码:14 |
| 关键词 | Fuel assembly Nonlinear mechanical model Seismic analysis Friction and collision |
| ISSN号 | 0029-5493 |
| DOI | 10.1016/j.nucengdes.2024.113251 |
| 通讯作者 | Liu, Xiaoming(xiaomingliu@imech.ac.cn) |
| 英文摘要 | Seismic events may lead to vibrations of fuel assemblies in the nuclear reactor cores, thus the dynamic analysis of such vibration of fuel assemblies is essential for the safety design of nuclear reactor plant. In this paper, by considering the friction between fuel pins, we proposed a nonlinear mechanical model for both static and dynamic analysis of fuel assemblies for pressurized water reactor (PWR). The proposed model used a two-beam structure with frictional units to mimic friction and possible contacts in the pin bundle during the static and dynamic loading in the air. By using this approach, we could characterize not only the hysteresis loop during the static bending test (the static slingshot experiment), but also the decrease of resonance frequency with increase of seismic load. Further, maximum contact forces during the seismic test are compared with experiment at various impact locations, and the predictions closely match the experimental findings, affirming the scientific validity and accuracy of the proposed model. The proposed model can be further used to analyzing seismic behavior of the entire reactor core structure, providing valuable insights for assessing reactor structural safety and predictive hazard assessments. |
| 资助项目 | National Natural Science Foundation of China[11988102] ; Youth Innovation Promotion Association CAS[2018022] ; National Key R & D Program for International Cooper- ation Project of China[2022YFE0124700] ; Key R & D Development Program of China[2020-JCJQ-ZD-254] |
| WOS研究方向 | Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:001236154600001 |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; National Key R & D Program for International Cooper- ation Project of China ; Key R & D Development Program of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/95474]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Liu, Xiaoming |
| 作者单位 | 1.UCAS, Sch Engn Sci, Beijing 100049, Peoples R China 2.Peking Univ, Coll Engn, Beijing 100190, Peoples R China 3.China Inst Atom Energy, Beijing 102413, Peoples R China 4.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Yuran,Tan, Ximing,Peng, Qing,et al. Nonlinear model for assessing seismic resilience in nuclear fuel assemblies[J]. NUCLEAR ENGINEERING AND DESIGN,2024,424:14. |
| APA | Jin, Yuran.,Tan, Ximing.,Peng, Qing.,Wang, Jun.,Song, Jingru.,...&Jin YR.(2024).Nonlinear model for assessing seismic resilience in nuclear fuel assemblies.NUCLEAR ENGINEERING AND DESIGN,424,14. |
| MLA | Jin, Yuran,et al."Nonlinear model for assessing seismic resilience in nuclear fuel assemblies".NUCLEAR ENGINEERING AND DESIGN 424(2024):14. |
入库方式： OAI收割
来源：力学研究所
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