Vibration characteristics of multi-span fuel rods solved by the transfer matrix method and mode superposition method

Li Yilong; Guo Yan; Ran Shuangye; Min Guangyun; Jiang Naibin

doi:10.11714/acta.snus.ZR20260005

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Vibration characteristics of multi-span fuel rods solved by the transfer matrix method and mode superposition method

Research articles | 更新时间：2026-07-24

- Vibration characteristics of multi-span fuel rods solved by the transfer matrix method and mode superposition method
- Acta Scientiarum Naturalium Universitatis Sunyatseni Vol. 65, Issue 4, Pages: 105-112(2026)
- 作者机构：
  
  1.中山大学中法核工程与技术学院，广东珠海 519082
  2.中广核研究院有限公司，广东深圳 518026
- 作者简介：
- 基金信息：
- DOI：10.11714/acta.snus.ZR20260005
  CLC： TL352
- Received：05 January 2026，
  
  Revised：2026-01-19，
  
  Accepted：09 February 2026，
  
  Online First：02 April 2026，
  
  Published：25 July 2026
- 稿件说明：
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李沂垅,郭严,冉霜叶等.传递矩阵法与振型叠加法求解多跨燃料棒振动特性[J].中山大学学报(自然科学版)(中英文),2026,65(04):105-112.

Li Yilong,Guo Yan,Ran Shuangye,et al.Vibration characteristics of multi-span fuel rods solved by the transfer matrix method and mode superposition method[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2026,65(04):105-112.
李沂垅,郭严,冉霜叶等.传递矩阵法与振型叠加法求解多跨燃料棒振动特性[J].中山大学学报(自然科学版)(中英文),2026,65(04):105-112. DOI： 10.11714/acta.snus.ZR20260005.

Li Yilong,Guo Yan,Ran Shuangye,et al.Vibration characteristics of multi-span fuel rods solved by the transfer matrix method and mode superposition method[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2026,65(04):105-112. DOI： 10.11714/acta.snus.ZR20260005.

摘要

在压水堆中，燃料棒通过定位格架进行约束，形成多弹性约束的多跨梁结构。燃料棒所在的流道将受到轴向流对定位格架的作用产生湍流，在燃料棒表面产生比纯轴向流更大的流体激励。基于传递矩阵方法和燃料棒刚度的各项异性，建立了一种多弹性约束的燃料棒弯曲振动模型。进一步，利用振型叠加法，通过施加分段简谐激励，分析了燃料棒在轴向流流场中的振动响应，同时对不同弹性约束失效情况进行了研究。最后，验证了本文方法的准确性和有效性。

Abstract

In pressurized water reactors，these rods are commonly constrained by spacer grids，forming a multi-span beam configuration characterized by multiple elastic supports. Concurrently，the flow channels housing the fuel rods experience turbulence induced by axial flow interacting with the spacer grids，leading to increased excitation forces on the fuel rod surfaces compared to pure axial flow conditions. Based on the transfer matrix method（TMM） and the anisotropy of fuel rod stiffness， a multi-elastic constraint model of fuel rod bending vibration was established.. Additionally，the mode superposition method（MSM） is utilized to simulate and investigate the vibration response of fuel rods subjected to axial flow by applying segmented harmonic excitations. A comparative assessment of various elastic constraint failure scenarios is also performed. Finally，the method’s accuracy is verified.

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references

胡俊峰，廖弘，徐旺，等， 2025 . 传递矩阵法分析平面椭圆柔顺机构的动态性能［J］. 机械设计与制造，（ 11 ）： 215 - 221 .

江未， 2023 . 反应堆燃料棒束流致振动与微动磨损研究［D］. 哈尔滨：哈尔滨工程大学 .

刘鹏亮，陈飙松，范晨光，等， 2020 . 多约束燃料棒自由振动特性［J］. 西南交通大学学报， 55 （ 2 ）： 428 - 434 .

刘寅生， 2024 . 基于传递矩阵法的柔性多支承滑动轴承转子系统动力学研究［D］. 柳州：广西科技大学 .

闵光云，吴海，卢志威，等， 2024 . 新型分段式设计燃料棒流致振动分析［J］. 中山大学学报（自然科学版中英文）， 63 （ 4 ）： 78 - 87 .

齐欢欢，冯志鹏，吴万军，等， 2017 . 压水堆燃料棒包壳微振磨损计算方法［J］. 核动力工程， 38 （ 5 ）： 54 - 57 .

田子豪， 2022 . 搅混翼格架对压水反应堆内流动演变机理及换热特性影响研究［D］. 北京：北京交通大学 .

王玺，陈力奋，钱浩，等， 2012 . 定位格架弹性约束对燃料棒振动特性的影响［J］. 振动与冲击， 31 （ 5 ）： 165 - 170 .

徐汉忠， 1988 . 有水振型叠加法解水中圆柱梁的受迫振动问题［J］. 河海大学学报， 16 （ 5 ）： 113 - 121 .

Brockmeyer L ， Saini N ， Tentner A ， et al ， 2024 . Evaluation of RANS vs. LES simulation of fluid flow through <math id="M38"><mn mathvariant="normal">3</mn><mo>×</mo><mn mathvariant="normal">3</mn></math> https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=113777540&type= https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=113777515&type= 7.11199999 2.28600001 rod bundle with a simple spacer grid as a precursor to coupled fluid-structure interaction simulations ［J］. Nucl Eng Des ， 430 ： 113662 .

Li W ， Guo H ， Zhang J ， et al ， 2023 . Study on the characteristics of axial fluid pressure on fuel rods with spacer grids ［J］. Ann Nucl Energy ， 193 ： 110015 .

Lin Z ， Lu Z ， Liu C ， et al ， 2026 . Transfer matrix method for calculating dynamic responses of pipeline systems with arbitrary substructures including side branches and closed loops ［J］. Thin-Walled Struct ， 218 ： 114121 .

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Related Author

LI Yilong

MIN Guangyun

JIANG Naibin

Related Institution

Sino-French Institute of Nuclear Engineering and Technology，Sun Yat-sen University

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