Dynamic Characteristics Analysis of Cylinders Bundle Coupling System Under Axial Flow

doi:10.5755/j02.mech.25101

	Dynamic Characteristics Analysis of Cylinders Bundle Coupling System Under Axial Flow
	Shu, Ya-feng 1,2; Wu, Jian-jun 2; Yang, Yong-wei 1; Liu, Wei-ming 1; Tao, Kei-wei 1
刊名	MECHANIKA
	2021
卷号	27 期号:3 页码:209-219
关键词	CB coupling dynamic model stability analysis pulsating flow amplitude frequency response movement trajectory
ISSN号	1392-1207
DOI	10.5755/j02.mech.25101
通讯作者	Wu, Jian-jun(wujjun@lzu.edu.cn)
英文摘要	Nuclear reactor fuel assemblies are mainly composed of cylinders bundle (CB), calculating the dynamics characteristics of CB under axial flow can lay a foundation for predicting fretting wear and vibration fatigue. In the paper, the CB coupling dynamic model of forced vibration under pulsating flow is established. And the stability analysis and natural frequency calculation of the CB system under steady flow are compared with the existing results to verify the model. Finally, the Runge-Kutta method is applied to solve the forced vibration equation of the CB under pulsating flow. The influence of the pulsating parameters mu, omega(0) on the amplitude-frequency characteristics and the motion trajectory of the midspan cross section of the CB under forced vibration are analyzed and discussed. The results show that the pulsating parameters have an important influence on the vibration of the CB system.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA21010202]
WOS关键词	INDUCED VIBRATION ; FUEL-RODS ; STABILITY ; CLUSTER
WOS研究方向	Mechanics
语种	英语
出版者	KAUNAS UNIV TECHNOL
WOS记录号	WOS:000691999000004
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/136421]
专题	中国科学院近代物理研究所
通讯作者	Wu, Jian-jun
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Coll Civil Engn & Mech, Key Lab Mech Disaster & Environm Western China, Minist Educ, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Shu, Ya-feng,Wu, Jian-jun,Yang, Yong-wei,et al. Dynamic Characteristics Analysis of Cylinders Bundle Coupling System Under Axial Flow[J]. MECHANIKA,2021,27(3):209-219.
APA	Shu, Ya-feng,Wu, Jian-jun,Yang, Yong-wei,Liu, Wei-ming,&Tao, Kei-wei.(2021).Dynamic Characteristics Analysis of Cylinders Bundle Coupling System Under Axial Flow.MECHANIKA,27(3),209-219.
MLA	Shu, Ya-feng,et al."Dynamic Characteristics Analysis of Cylinders Bundle Coupling System Under Axial Flow".MECHANIKA 27.3(2021):209-219.