Radiated Sound Control by Structural Energy Flow Control of Panel Structure
パネル振動の振動エネルギー流れ制御によるパネル放射音の制御
This paper makes clear the relation between structural intensity (SI) and acoustical intensity (AI) distributions in order to discuss the possibility of AI control by controlling SI distributions. At first the formula of bending displacement, SI and AI are summarized and the relationship among them are discussed theoretically. The numerical simulation is carried out to confirm and discuss the relationship and the controllability of SI to AI by using a simply supported steel panel. As a result, it is shown that the AI distribution is similar with the SI distribution under the panel with high damping. Also the authors discuss the characteristics of structural vibration and radiated sound under two typical SI distribution forms – vortex-typed and non-vortex-typed. And then the authors conclude that the SI control can control AI distribution under high damping structure, for example to control the acoustical transmitted power above the panel.振動インテンシテ（SI）と音響インテンシティ（AI）の関係を明らかにし，SIを制御することによりAIを制御することが可能であることを示す．はじめに，SI とAIの関係性を理論的に検討する．次いで，フレームつきパネルを対象に，制御力作用によるパネル部の SI 分布の制御性を示し，渦型の SI 分布による放射音の低減化を示す．
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
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Authors:
- Yamazaki, Toru
- Matsuya, Yuki
- Nakamura, Hiroki
- Publication Date: 2016
Language
- English
- Japanese
Media Info
- Media Type: Web
- Features: Figures; References;
- Pagination: pp 1123-1128
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Serial:
- Transactions of Society of Automotive Engineers of Japan
- Volume: 47
- Issue Number: 5
- Publisher: Society of Automotive Engineers of Japan
- ISSN: 0287-8321
- EISSN: 1883-0811
- Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
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Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Acoustics; Computer aided design; Noise; Numerical analysis; Simulation; Structural analysis; Vehicle bodies; Vibration
- Subject Areas: Environment; Highways; Safety and Human Factors; Vehicles and Equipment;
Filing Info
- Accession Number: 01664763
- Record Type: Publication
- Source Agency: Japan Science and Technology Agency (JST)
- Files: TRIS, JSTAGE
- Created Date: Mar 29 2018 9:33AM