2016 Fiscal Year Final Research Report
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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| Project Period (FY) |
2013-04-01 – 2017-03-31
|
| 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 |
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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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| Free Research Field |
機械力学・計測制御
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