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Study on the characteristic and the countermeasures against self-excited vibrations which are generated in the support part of high stack

Study on the characteristic and the countermeasures against self-excited vibrations which are generated in the support part of high stack
高堆垛支撑部位自激振动特性及对策研究
批准号:
20560211
负责人:
SATO Yuichi
金额:
$2.91万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2008
资助国家:
日本
项目状态:
已结题
起止时间:
2008 至 2010

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项目成果

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中文摘要
翻译
为了阐明观测到的高圆堆附近支撑的剧烈振动机理,进行了实验研究。一种测试装置由一根垂直的柔性杆组成,该杆靠近一个大的实心圆柱体。相应地,气流使杆以其第一个固有角频率旋转。旋转运动随着气流速度的增加而增加。旋转方向取决于与气缸的相对位置,而不取决于气流速度。进一步,分析研究假设通过圆柱的流动是无摩擦、无旋转和不可压缩的。分析结果与实验结果及实际支撑振动值吻合较好。
英文摘要
To clarify the mechanism of observed violent vibration of a brace adjacent to a high circular stack, experimental study was performed. A test apparatus consists of a vertical flexible rod placed close to a large solid cylinder. Accordingly, airflow makes the rod whirl at its first natural angular frequency. Whirling motion grows as airflow velocity increases. Whirling direction depends on a relative location to the cylinder and not on airflow velocity. Further, analytical study was done by assuming the flow past the cylinder is frictionless, irrotational and incompressible. Analytical results show fairly good agreement with experimental ones as well as the actual brace vibration.
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会议论文
Flow Induced Vibration of an Elastic Rod Adjacent to a Cylinder
邻近圆柱体的弹性杆的流致振动
DOI: --
发表时间: 2011
期刊: Journal of System Design and Dynamics
影响因子: --
作者: [keiji YOSHIMURA, Hiroki MORI, Takuo NAGAMINE, Masahiro NOGAMI, Yuichi SATO]
通讯作者: Yuichi SATO
DOI: --
发表时间: 2008
期刊: 日本機械学会関東支部第14期総会講演会講演論文集 080-1
影响因子: --
作者: [野上正博, 佐藤勇一, 長嶺拓夫, 森博輝]
通讯作者: 森博輝
旋回流れ内に置かれた弾性棒の挙動
弹性杆置于旋流中的行为
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者: [Robert Kloepper, 大熊政明, K.Yasuoka, 市村龍美,森博輝,長嶺拓夫,佐藤勇一]
通讯作者: 市村龍美,森博輝,長嶺拓夫,佐藤勇一
円柱まわりに置かれた弾性棒の流れによる自励振動
由放置在气缸周围的弹性杆的流动引起的自激振动
DOI: --
发表时间: 2009
期刊: 日本機械学会論文集C編 75巻、755号
影响因子: --
作者: [吉村敬二, 森博輝, 長嶺拓夫, 野上正博, 佐藤勇一]
通讯作者: 佐藤勇一
共 6 条
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    • 批准号:
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    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
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    • 项目类别:
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    • 资助金额:
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    • 财政年份:
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