| Project/Area Number |
23560076
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Engineering fundamentals
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| Research Institution | University of Hyogo (2013-2014)
National Institute of Advanced Industrial Science and Technology (2011-2012) |
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Principal Investigator |
KURODA Masaharu 兵庫県立大学, 大学院工学研究科, 教授 (60344222)
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| Research Collaborator |
ARAKI Nozomu
MATSUBUCHI Hiroki
YOSHITANI Naoki
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 微積分 / 振動 / 制御 / PID制御 / 柔軟構造物 / ロバスト性 / 制御工学 / 振動制御 / フィードバック制御 / 実験 / １センサ法 / 複数センサ法 / Grunwald-Letnikovの定義 / 1/2階微分 / 粘弾性体 / 物理数学 / ダイナミクス / 運動方程式 / 安定判別 |
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| Outline of Final Research Achievements |
Fractional calculus in which the order of the differentiation/integration is expanded to a non-integer value is applied to vibration control engineering. First, the definition of the fractional differentiation/integration is discretized. Then its algorithm is downloaded to a digital signal processor (DSP). The output signal from one sensor can be differentiated/integrated to a fractional order with the DSP. Furthermore, a technique is developed by which a linear combination of the output signals from multiple displacement and velocity sensors is converted into a fractional differentiation/integration response. Finally, vibration control experiments of a flexible cantilevered beam are conducted using fractional PID feedback control. In contrast to conventional PID feedback control, the fractional PID feedback control can achieve not only the equivalent vibration-suppression effect, but also better robust stability against parameter variation.
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