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題 名 | A Frequency Interpolation Scheme for the Three Dimensional Helmholtz Boundary Integral Equation Method=頻率內差法於三維荷姆茲邊界積分法之應用探討 |
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作 者 | 王昭男; | 書刊名 | 中華民國音響學刊 |
卷 期 | 3:1 1995.05[民84.05] |
頁 次 | 頁1-13 |
分類號 | 448.5 |
關鍵詞 | 頻率內差法; 三維荷姆茲邊界積分法; 外域問題; 內域問題; 頻譜反應; |
語 文 | 英文(English) |
中文摘要 | 本文引述一可適用於三維荷姆茲邊界積分法之頻率內差算式,此一算式不論在內 域或者外域問題都相當準確,文中以簡單膨脹管之傳輸損失進行內域問題之內差驗證,而 外域問題則分析了脈動球之放射阻抗,兩者皆十分可靠。經由頻率內差算式之應用,在處 理頻譜反應分析時,明顯減少了所須之計算時間,提高效益。文中最後則對長方體內部進 行了特徵頻率之分析,結果亦相當符合,說明了此頻率內差算式之實用性與可靠性。 |
英文摘要 | A frequency interpolation scheme for the three dimensional Helmholtz boundary integral equation is introduced. Its accuracy has been verified either for interior problem (i.e. the transmission loss of simple expansion chamber) or for exterior problem (i.e. the impedance of a pulsating sphere). The computational time would be reduced obviously in analyzing the spectral response. At last, the eigenvalue analysis of a rectangular cavity has also been taken into consideration, it can be seen that this frequency interpolation scheme still works well. |
本系統中英文摘要資訊取自各篇刊載內容。