| Project/Area Number |
20560221
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Dynamics/Control
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| Research Institution | Oita University |
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Principal Investigator |
RYU Takahiro Oita University, 工学部, 教授 (60230877)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUZAKI KENICHIRO 九州大学, 大学院・工学研究院, 准教授 (80264068)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 自励振動 / パターン形成 / 動吸振器 / 回転体の振動 / 抄紙機 / 粘弾性特性 |
|---|
| Research Abstract |
The roll covering rubber of a paper making machine is often deformed into a certain convex polygon after the long operation. The phenomena are called pattern formation phenomena which lead to strong vibration of the machine, and cause the damage of the paper and the machine. In this study, as the countermeasure to suppress the pattern formation phenomena caused by the viscoelastic deformation of the rubber, the effect of the external damping, variation of the rotating speed, dynamic absorbers and diametral ratio between the rolls are examined by theoretical and experimental analysis. It is found that the pattern formation phenomena can be suppressed by each technique, and the optimum design to suppress the pattern formation phenomena is suggested.
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