IDENTIFICATION OF FLUID ELASTIC VIBRATION OF MULTIPLE CYLINDRICAL

多圆柱体流体弹性振动辨识

• 批准号: 09450098
• 负责人: KANEKO Shigehiko
• 金额: $ 9.02万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09450098/
• 关键词: FAST BREEDER REACTOR; SLOSHING; SELF-EXCITED VIBRATION; FLUID ELASTIC VIBRATION; SHELL VIBRATION; INSTABILITY; COUPLED PROBLEM; COOLING SYSTEM; 時間遅れ系; 炉壁; 安全性

In this study, we performed stability analyses of self-excited vibration of multiple flexible cylindrical wires coupled with annular sloshing and succeeded in deriving the theory for modeling the unstable vibration and design methodology for countermeasures. The system to be analyzed is the combination of walls and annular passage for coolant used for cooling Fast Breeder Reactor. Based on the theory we already derived. We developed a theory applicable to the case composed of dual flexible cylindrical shells. The validity of this theory was verified by experiments. In the experiments, we observed unstable vibrations in the ease of dual flexible cylindrical shells vibrating out of phase each other for the first time. We performed calculation for the instability and obtained so-called instability map which directly leads to design criteria for countermeasures to avoid the instability.

在这项研究中，我们对多根柔性圆柱线自激振动与环形晃动耦合进行了稳定性分析，并成功推导了不稳定振动建模理论和对策设计方法。待分析的系统是用于冷却快中子增殖反应堆的冷却剂的壁和环形通道的组合。基于我们已经推导的理论。我们开发了一种适用于由双柔性圆柱壳组成的情况的理论。通过实验验证了该理论的有效性。在实验中，我们首次观察到双柔性圆柱壳彼此异相振动的不稳定振动。我们对不稳定性进行了计算，并获得了所谓的不稳定性图，这直接导致了避免不稳定性的对策的设计标准。

项目成果

田中成彦, 金子成彦, 渡辺辰郎: "溢流によって発生する二重円筒弾性堰の自励振動" 日本機械学会D&D′98. (発表予定). (1998)

Narihiko Tanaka、Narihiko Kaneko、Tatsuo Watanabe：“溢流引起的双圆柱弹性堰的自激振动”日本机械工程师学会 D&D98（待提交）。

Hiroshi Nagakura, Shigehiko Kaneko: "Self-excited Sloshing due to the Fluid Discharge overa Flexible Cylinder Weir"ASME Transaction of Pressure Vessel Technology. (in press).

Hiroshi Nagakura、Shigehiko Kaneko：“柔性筒堰上流体排放导致的自激晃动”ASME 压力容器技术汇刊。

Shigehiko Kaneko, Hiroshi Nagakura Ryuji Nakano: "Analytical Model for Self-excited Vibration of an Overflow Flexible Plate Weir"ASME Transaction of Pressure Vessel Technology. 121. 296-303 (1999)

Shigehiko Kaneko、Hiroshi Nagakura Ryuji Nakano：“溢流柔性板堰自激振动的分析模型”ASME 压力容器技术汇刊。

SHIGEHIICO KANEKO, HIROSHI NAGAKURA, RYUJI NAKANO: "ANALYTICAL MODEL FOR SELF EXCITED VIBRATION OF AN OVERFLOW FLEXIBLE PLATE WEIR"ASME TRANSACTION OF PRESSURE VESSEL TECH. 121. 296-303 (1999)

SHIGEHIICO KANEKO、HIROSHI NAGAKURA、RYUJI NAKANO：“溢流柔性板堰自激振动分析模型”压力容器技术的 ASME 交易。

田中成彦,金子成彦,渡辺辰郎: "溢流によって発生する二重円筒弾性堰の自動振動"日本機械学会論文集C編. 65・634. 66-74 (1999)

Naruhiko Tanaka、Naruhiko Kaneko、Tatsuo Watanabe：“溢流引起的双圆柱弹性堰的自动振动”，日本机械工程学会会刊，C 版，65, 634. 66-74 (1999)。