Novel sound transmission control using multiple smart films
| Project/Area Number |
25420192
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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 |
Dynamics/Control
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| Research Institution | Seikei University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
田中 信雄 首都大学東京, システムデザイン研究科, 名誉教授 (70305423)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 能動振動制御 / 能動騒音制御 / 遮音制御 / スマートフィルム / 連成現象 / 多重壁 / 伝達マトリクス法 / 波動制御 / 振動制御 |
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| Outline of Final Research Achievements |
The objective of this study is to present a light and efficient sound transmission control system by introducing active control technologies to a multiple smart films structure. First, in consideration of the fact that thin films are strongly affected by sound fields, hybrid control that simultaneously utilizes active vibration control and active noise control was proposed. Furthermore, the precise modelling method for a vibro-acoustic coupling system using a transfer matrix method, which had specified for a coupling system containing one flexible structure, was expanded to the case of a drum-like coupling structure. As a result, it was clarified that hyperbolic modes that are governed by cosh and sinh functions appear under certain conditions.
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Report
(5 results)
Research Products
(21 results)
