Mechanism of Self-excited Vibration of a Web Supported by Air-turn Bar and Development of Vibration Suppression Mechanism
Project/Area Number |
20560225
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Dynamics/Control
|
Research Institution | Aoyama Gakuin University |
Principal Investigator |
MASAHIRO Watanabe Aoyama Gakuin University, 理工学部, 教授 (40256673)
|
Project Period (FY) |
2008 – 2010
|
Project Status |
Completed (Fiscal Year 2010)
|
Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
Keywords | エアターンバー / 自励振動 / 励振メカニズム / セミアクティブ制振 / ウェブ / 流れ励起振動 / 流体構造連成 / ターンバー |
Research Abstract |
This study deals with a theoretical stability analysis of a self-excited vibration generated in a web wrapped around an air-turn bar. Stability of the web wrapped around an air-turn bar is examined theoretically and experimentally. The instability condition of the system is shown as a function of air flow rate and tensile force. The instability mechanism of the self-excited vibration is discussed based on the theoretical model. Moreover, a semi-active control method to suppress the self-excited vibration of the web is proposed. It is experimentally shown that the self-excited vibration is effectively suppressed by the proposed semi-active control device. The suppression effect is clarified by the experiment.
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Report
(4 results)
Research Products
(6 results)