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頁籤選單縮合
題 名 | 近似聲源法應用于聲音散射全像之預估=An Application of Similar Source Method in Estimating of Scattering Sound Field |
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作 者 | 涂季平; 蘇登桂; | 書刊名 | 中國造船暨輪機工程學刊 |
卷 期 | 16:3 1997.08[民86.08] |
頁 次 | 頁23-32 |
分類號 | 334.5 |
關鍵詞 | 近似聲源法; 散射; Similar source method; Scattering; |
語 文 | 中文(Chinese) |
中文摘要 | 本文中,吾人修改內部聲源法(1993, Stepanishen),將聲源分佈在接近虛擬表面之另一表面上而成新發展之近似聲源法。在本文中利用此方法來求解平面入射波對二維圓柱體之各種散射問題的數值解。壓力量測全像法亦被使用以求算聲源強度。所求算之數值解並與二維圓柱體平面入射波之正解相比較,結果發現,所發展之近似聲源法可以非常準確的預測散射聲場之強度。 |
英文摘要 | In the earlier study, Similar Source Method has been developed by modifying Internal Source Method to estimate the radiation sound field. In the present study, Similar Source Method is applied to estimate the scattering sound field. Least square error method has been used to determine the source strengths. The scattering sound field is then evaluated by using the source strengths. The results show excellent agreement in estimating the scattering sound field. |
本系統中英文摘要資訊取自各篇刊載內容。