Study on frequency-controllable sound absorbing material usingpiezoelectric polymers shunted with the electric circuit
| Project/Area Number |
23760545
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Architectural environment/equipment
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
AKASAKA Shuichi 東京工業大学, 大学院・理工学研究科, 助教 (00501066)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Keywords | 音 / 振動環境 / 吸音材料 / 圧電性高分子 / 電気回路 / 粘弾性 / 吸音率 / 板振動型吸音材料 / インダクタンス / tanδ / 建築環境・設備 / 構造・機能材料 / 圧電性材料 |
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| Research Abstract |
Piezoelectric materials shunted with an inductance as an electrical circuit showed a sound absorption at the electrical resonance frequency determined from a capacitance of a sample and the shunted inductance. This material is promising frequency-controllable sound absorbing materials. From a simultaneous measurement of a normal incident sound absorption coefficient and a vibration amplitude, we revealed that sound absorbing characteristics depend on a change in storage and loss modulus by shunted electric circuits..
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Report
(3 results)
Research Products
(10 results)
