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| 題 名 | Design and Analysis of Sound Trap Mechanism in the Hyperboloidal-Paraboloidal Structure=以雙曲拋物結構為陷音機構之設計與分析 |
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| 作 者 | 鄧錦坤; 蕭肇殷; | 書刊名 | 逢甲學報 |
| 卷 期 | 37 2000.06[民89.06] |
| 頁 次 | 頁93-105 |
| 分類號 | 446.11 |
| 關鍵詞 | 陷音結構; 雙曲面結構; Sound trap mechanism; Hyperboloidal structure; |
| 語 文 | 英文(English) |
| 中文摘要 | 本文以音線法分析在雙曲面結構體內部聲波反射及能量密度散佈之傳遞特性並列出拋物體結構內部聲波反射及能量密度散佈之特性。然後,設計一種組合雙曲面與拋物體之陷音機構,以便利用此機構能將陷入之噪音加以消耗。本文也以電腦模擬來觀察雙曲面之幾何特性,及聲波傳遞之特性與陷音機構參數變化之關係,並評估其消音效率。 |
| 英文摘要 | This paper analyzes the acoustic propagation characteristics of hyperboloidal structures by the ray tracing method, and outlines that of parabolodal structures. The acoustic propagation characteristics include the distribution of the acoustic energy density and the reflection phenomena inside the hyperboloidal structure. Then it introduces a sound trap mechanism that is a compositon structure of paraboloidal and hyperboloidal. This structure can attenuate the acoustic energy by trapping the noise. It also presents computer simulations to show the geometry characteristics of hyperboloidal structure, the relationships between the acoustic propagation characteristics and the structure parameters, and the efficiency evaluation of noise attenuation of this sound trap mechanism. |
本系統中英文摘要資訊取自各篇刊載內容。