中山大学学报（自然科学版）（中英文）2024，Vol.63Issue(4)：78-87,10.DOI:10.13471/j.cnki.acta.snus.ZR20240125
新型分段式设计燃料棒流致振动分析
Flow-induced vibration characteristics of novel segmented-design fuel rod
摘要
Abstract
A finite element model(FEM)is established based on ANSYS-APDL and multi-span con-tinuous beam theory for a new novel segmented-design fuel rod(NSDFR).The FEM equivalent the fuel rod to a BEAM 4 element,the dimple and spring to a COMBIN 14 element.Subsequently,based on the mode data obtained from ANSYS-APDL and semi-empirical equations,the characteristics of turbulent excitation,flow instability,and vortex shedding are systematically studied,as soon as compared with traditional structures.Finally,the impact of grid failure on turbulent excitation,flow instability,and vortex shedding of fuel rods is evaluated.关键词
新型分段式设计燃料棒/流致振动/格架失效/ANSYS-APDLKey words
NSDFR/flow-induced vibration/grid failure/ANSYS-APDL分类
能源科技引用本文复制引用
闵光云,吴海,卢志威,郭严,廖业宏,李沂垅,姜乃斌..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）,2024,63(4):78-87,10.基金项目
广东省重点领域研发计划(2021B0101250002) （2021B0101250002）
国家自然科学基金(11872060) （11872060）
