| Project/Area Number |
24360087
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Dynamics/Control
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| Research Institution | Tohoku University |
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Principal Investigator |
NAKANO Masami 東北大学, 流体科学研究所, 教授 (40147947)
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| Co-Investigator(Kenkyū-buntansha) |
TOTSUKA Atsushi 東北大学, 流体科学研究所, 技術専門職員 (40626313)
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| Co-Investigator(Renkei-kenkyūsha) |
FUKUKITA Akira 清水建設㈱, 技術研究所, グループ長 (20426589)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2012: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
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| Keywords | 機能性流体・材料 / マグネトレオロジー / ダンパ / 免震アイソレータ / 振動制御 / 知能制御システム / MR流体 / ナノ粒子 / Shear Thickening / MRダンパ / MRエラストマー / 積層ゴム / アイソレータ / 免震・制振 / ＭＲ流体 / コンポジット / ＭＲダンパ / 可変減衰力 / 免震制御 / エラストマー / 摩擦力 / 不織布 / MR回転ブレーキ / ボールネジ |
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| Outline of Final Research Achievements |
In order to solve the sedimentation problem of dispersed particles in the MR fluid in the off-working state, two types of novel MR composites; "MR fluid porous composite" made of nonwoven impregnated with MR fluid and "MR rubber composite (MR elastomer)" consisting of micro-sized iron particles dispersed in a silicone rubber, have been newly fabricated. Exploiting the features and functionalities of two types of the MR composites, a damping-variable seismic MR fluid composite smart damper and a stiffness-variable multilayered MR elastomer isolator with magnetic field have been designed and developed, and applied to semi-active control systems for the seismic isolation and vibration of structures.
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