Wind Induced Vibration of Braces Adjacent to a High Circular Stack

与高圆形堆栈相邻的支架的风致振动

• 批准号: 18560221
• 负责人: SATO Yuichi
• 金额: $ 2.36万
• 依托单位: Saitama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560221/
• 关键词: Self-Excited Vibration; Flow Induced Vibration; Aerodynamic Excitation; Unstable Vibration; Stack; ブレース

When elastic objects are located in the flow region, unstable vibrations occur due to coupling between motions of the objects and the flow region. This report treats the unstable whirling of an elastic bar that is located close to a circular cylinder in the flow region. Fundamental characteristics that include the whirling directions and the influence of some parameters are examined experimentally. Experimental results clarify that the whirling direction of the elastic bar depends on the positional relationship between the bar and the cylinder. In addition, the results are compared with the analytical results of the previous report that treats the unstable vibration of braces that are adjacent to a high circular stack.

当弹性物体位于流动区域时，由于物体运动和流动区域之间的耦合，产生不稳定的振动。本文研究了流动区中靠近圆柱的弹性杆的不稳定旋转问题。实验研究了旋流方向等基本特性以及一些参数对旋流的影响。实验结果表明，弹性杆的旋转方向取决于弹性杆与圆柱体的位置关系。此外，还将计算结果与前一篇报告中处理与高圆堆相邻的支撑的不稳定振动的分析结果进行了比较。

项目成果

Whirling of an elastic bar located close to a cylinder

靠近圆柱体的弹性杆的旋转

• 发表时间: 2008
• 期刊: Proceedings of the Japan Society of Mechanical Engineers No. 080-1
• 作者: Masahiro NOGAMI;Yuichi SATO;Takuo NAGAMINE;Hiroki MORI
• 通讯作者: Hiroki MORI

円柱近傍に置かれた弾性棒に発生する振れ回り現象に関する研究

靠近圆柱体的弹性杆发生涡动现象的研究

• 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
• 作者: 野上正博;佐藤勇一;長嶺拓夫;森博輝
• 通讯作者: 森博輝

円柱近傍に置かれた弾性棒の動特性

放置在圆柱体附近的弹性杆的动态特性

• 发表时间: 2007
• 期刊: 日本機械学会D&D2007講演会CO-ROM講演論文集 07-8
• 作者: 森博輝;佐藤勇一;長嶺拓夫;野上正博;吉村敬二
• 通讯作者: 吉村敬二

Dynamic characteristics of an elastic bar located close to a circular cylinder

靠近圆柱体的弹性杆的动态特性

• 发表时间: 2007
• 期刊: Proceedings of the Dynamics and Desigin Conference, Dynamics and Measurement, Division, JSME No. 07-8(CD-ROM)
• 作者: Hiroki MORI;Yuichi SATO;Takuo NAGAMINE;Masahiro NOGAMI;Keiji YOSHIMURA
• 通讯作者: Keiji YOSHIMURA