查詢結果分析
來源資料
頁籤選單縮合
題名 | Shape Optimization on Double-Chamber Muffler with Side Inlet-Outlet under Space Constraint=限制空間下的雙腔邊進排氣式消音器的外型最佳化設計 |
---|---|
作者姓名(中文) | 張英俊; 葉隆吉; 邱銘杰; 賴光哲; | 書刊名 | 中正嶺學報 |
卷期 | 33:2 2005.05[民94.05] |
頁次 | 頁1-12 |
分類號 | 446.8 |
關鍵詞 | 四埠傳輸矩陣; 外型最佳化; 雙腔邊進排氣式消音器; Four-pole matrix; Shape optimization; Double-chamber muffler with side inlet/outlet; |
語文 | 英文(English) |
中文摘要 | 為配合維修與操作,附屬的防音設備空間常受到限制,因而,如何在空間限制下將消音器的減音性能極大化,即為一極為重要的訴求。本文討論邊進出氣式雙腔消音器的外型最佳化設計,文中同時說明電腦圖形判別與二種功能強大的梯度數值分析技巧。一組初始設計參數可藉由電腦的靈敏度圖形判別系統中獲得,後續的數值技巧則將依據上述的初始設計參數進行搜尋,上述二法之解亦被匯整並互做比較。此外,為了驗證數值最佳化後的結果精確度,將引用Kuhn-Tucker Condition 法則來驗證,本文中引用一個單頻音的控制為最佳化的範例探討,結果顯示,經過最佳化處理後,聲音穿透損失值(STL)確實在設計頻率處被極大化,本研究主要強調一種快速且有效的最佳化設計方法,可用在限制尺寸下的邊進出氣式雙腔消音器的設計上。 |
英文摘要 | The accessory facility of noise abatement is often confined for the necessity of equipment’s maintenance and operation; therefore, how to ultimate the acoustic performance of mufflers within a limited space becomes an essential issue. This paper proposes an optimal design of a muffler with two expansion chambers (hybridized with inlet and outlet tubes) under maximal sound transmission loss (STL) considerations. A graphic analysis system together with the two powerful gradient techniques is also described in detail. A set of initial design data is primarily derived via computer graphic analysis on sensitivity. The shape optimization of a muffler is then carried out using the successive algorithm of iteration techniques. The results are not only summarized but also compared with each other. In order to determine the accuracy of this study, the results are confirmed using the Kuhn-Tucker Condition. A numerical case illustrating the elimination of pure tone noise is also introduced. Results reveal that the sound transmission loss (STL) is maximized at the desired frequency. This study reinforces the quick and effective approach of an optimal design for double-chamber mufflers under space. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。