| 研究生: |
陳建勳 Jian-Xun Cheng |
|---|---|
| 論文名稱: |
有洞薄方板之動態分析與激振後之聲場 |
| 指導教授: |
黃以玫
Yii-Mei Huang |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 機械工程學系 Department of Mechanical Engineering |
| 畢業學年度: | 89 |
| 語文別: | 中文 |
| 論文頁數: | 70 |
| 中文關鍵詞: | 有洞薄方板 、輻射及繞射聲壓 |
| 相關次數: | 點閱:5 下載:0 |
| 分享至: |
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所提出之''Ectoplasm"方法分別求出有洞薄方板之運動方程式,
並與套裝軟體 Ansys 有限元素法所求出之數值解做比較,
以求出本文適用的有洞薄方板運動方程式。
為討論有洞薄方板之動態分析,
我們將點聲源置於有洞薄方板幾何中心正上方,
使其激振有洞薄方板以產生振動,
另為考慮平板振動及經由孔洞部分的入射聲壓所產生之輻射及繞射聲壓,
便引入了格林函數及 ( Fresnel-Kirchhoff ) 繞射定理,
以解決板面輻射及孔洞繞射的相關問題,
最後改變點聲源及觀察者的相關位置,
以討論總聲場與輻射及繞射之大小變化。
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