Nonlinear vibration of wire-wrapped fuel rod subjected to axial flow
Wire-wrapped fuel rods are widely utilized in lead-bismuth reactors and subjected to high kinetic energy fluid flow, significantly influencing the reactor's safe operation. This study addresses the increasing interest in fuel assemblies by developing a theoretical fluid-structure interaction mo...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Alexandria Engineering Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016824014200 |
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| author | Yu Zhang Pengzhou Li |
| author_facet | Yu Zhang Pengzhou Li |
| author_sort | Yu Zhang |
| collection | DOAJ |
| description | Wire-wrapped fuel rods are widely utilized in lead-bismuth reactors and subjected to high kinetic energy fluid flow, significantly influencing the reactor's safe operation. This study addresses the increasing interest in fuel assemblies by developing a theoretical fluid-structure interaction model to elucidate the dynamic behavior of wire-wrapped fuel rods. Newton's law is employed to derive the governing equation, with fluid force coefficients determined through widely accepted numerical simulations, while the impact and downstream nonlinear boundary condition are incorporated. Two comparative analyses robustly validate the reliability of the proposed model. Building on this model, the study investigates the nonlinear vibration characteristics (amplitude, phase space, impact forces, etc.) of the structure, considering the effects of gap size and streamlining parameter. Moreover, the theoretical derivation of this model provides a foundational and dependable mathematical framework to facilitate further research on fretting wear. |
| format | Article |
| id | doaj-art-4ad79d8e2b47474499e82e3945e9129d |
| institution | Kabale University |
| issn | 1110-0168 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj-art-4ad79d8e2b47474499e82e3945e9129d2025-01-29T05:00:17ZengElsevierAlexandria Engineering Journal1110-01682025-01-01112448460Nonlinear vibration of wire-wrapped fuel rod subjected to axial flowYu Zhang0Pengzhou Li1Nuclear Power Institute of China, Chengdu 610213, ChinaCorresponding author.; Nuclear Power Institute of China, Chengdu 610213, ChinaWire-wrapped fuel rods are widely utilized in lead-bismuth reactors and subjected to high kinetic energy fluid flow, significantly influencing the reactor's safe operation. This study addresses the increasing interest in fuel assemblies by developing a theoretical fluid-structure interaction model to elucidate the dynamic behavior of wire-wrapped fuel rods. Newton's law is employed to derive the governing equation, with fluid force coefficients determined through widely accepted numerical simulations, while the impact and downstream nonlinear boundary condition are incorporated. Two comparative analyses robustly validate the reliability of the proposed model. Building on this model, the study investigates the nonlinear vibration characteristics (amplitude, phase space, impact forces, etc.) of the structure, considering the effects of gap size and streamlining parameter. Moreover, the theoretical derivation of this model provides a foundational and dependable mathematical framework to facilitate further research on fretting wear.http://www.sciencedirect.com/science/article/pii/S1110016824014200Fluid-structure interactionWire-wrapped fuel rodTheoretical modelNonlinear vibrationLead-bismuth reactor |
| spellingShingle | Yu Zhang Pengzhou Li Nonlinear vibration of wire-wrapped fuel rod subjected to axial flow Alexandria Engineering Journal Fluid-structure interaction Wire-wrapped fuel rod Theoretical model Nonlinear vibration Lead-bismuth reactor |
| title | Nonlinear vibration of wire-wrapped fuel rod subjected to axial flow |
| title_full | Nonlinear vibration of wire-wrapped fuel rod subjected to axial flow |
| title_fullStr | Nonlinear vibration of wire-wrapped fuel rod subjected to axial flow |
| title_full_unstemmed | Nonlinear vibration of wire-wrapped fuel rod subjected to axial flow |
| title_short | Nonlinear vibration of wire-wrapped fuel rod subjected to axial flow |
| title_sort | nonlinear vibration of wire wrapped fuel rod subjected to axial flow |
| topic | Fluid-structure interaction Wire-wrapped fuel rod Theoretical model Nonlinear vibration Lead-bismuth reactor |
| url | http://www.sciencedirect.com/science/article/pii/S1110016824014200 |
| work_keys_str_mv | AT yuzhang nonlinearvibrationofwirewrappedfuelrodsubjectedtoaxialflow AT pengzhouli nonlinearvibrationofwirewrappedfuelrodsubjectedtoaxialflow |