| Seismic behavior analysis of control rod dropping by vector form Intrinsic Finite-Element method | |
Wu H(吴晗); Peng Q(彭青) ; Jin, Fenglei; Song JR(宋晶如); Liu XM(刘小明)
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| Source Publication | NUCLEAR ENGINEERING AND DESIGN
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| 2024-12 | |
| Volume | 430Pages:113660 |
| ISSN | 0029-5493 |
| Abstract | Control rod drive mechanism (CDRM) play a major role in ensuring safe operation of nuclear reactor during the earthquake, under which the dropping time of control rod is crucial for safe shutdown. Under the earthquake, Rod Cluster Control Assembly (RCCA) has contact collision with the guide tube, resulting in an increase of friction and a decrease of the speed of the falling rod. In addition, in view of the slender structure of the falling rod, the flexible deformation vibration will occur under the impact excitation, which will aggravate the collision and friction. In order to solve the nonlinear problem caused by contact collision between control rod and guide tube, we proposed a dynamic behavior analysis program of rod dropping based on vector finite element method. In order to simulate contact collision force more accurately, we proposed a conformal contact law to simulate the contact force between control rod and guide tube. The vector finite element model and simulation program are validated by comparing with a rod drop experiment. Based on the developed program, the rod dropping behavior, including rod dropping time, contact force, friction force and control rod deformation under several earthquake condition were discussed in this work. |
| Keyword | Control Rod Rod Dropping Vector Form Intrinsic Finite-Element Method |
| DOI | 10.1016/j.nucengdes.2024.113660 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001353481500001 |
| WOS Research Area | Nuclear Science & Technology |
| WOS Subject | Nuclear Science & Technology |
| Funding Organization | National Key R & D Program for International Cooperation Project of China {2022YFE0124700] ; Key R & D Development Program of China {2020-JCJQ-ZD-254] ; National Natural Science Foundation of China {12022210, 12032001] ; Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics {11988102] ; Youth Innovation Promotion Association of CAS {2018022] |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Liu XM |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/97182 |
| Collection | 流固耦合系统力学重点实验室 非线性力学国家重点实验室 |
| Affiliation | 1.【Wu, Han】 Chinese Acad Sci, Inst Mech, LMFS, Beijing 100190, Peoples R China 2.【Peng, Qing & Song, Jingru & Liu, Xiaoming】 Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China 3.【Jin, Fenglei】 China Inst Atom Energy, Beijing 102413, Peoples R China 4.【Liu, Xiaoming】 Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Wu H,Peng Q,Jin, Fenglei,et al. Seismic behavior analysis of control rod dropping by vector form Intrinsic Finite-Element method[J]. NUCLEAR ENGINEERING AND DESIGN,2024,430:113660.Rp_Au:Liu XM |
| APA | 吴晗,彭青,Jin, Fenglei,宋晶如,&刘小明.(2024).Seismic behavior analysis of control rod dropping by vector form Intrinsic Finite-Element method.NUCLEAR ENGINEERING AND DESIGN,430,113660. |
| MLA | 吴晗,et al."Seismic behavior analysis of control rod dropping by vector form Intrinsic Finite-Element method".NUCLEAR ENGINEERING AND DESIGN 430(2024):113660. |
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