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研究生:龔清源
研究生(外文):Cing-yuan GUNG
論文名稱:田口法於離心式風扇最佳化設計
論文名稱(外文):Study on Optimum Design of Centrifugal Fan by Taguchi Method
指導教授:林水木林水木引用關係
學位類別:碩士
校院名稱:崑山科技大學
系所名稱:機械工程研究所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2011
畢業學年度:99
語文別:中文
論文頁數:66
中文關鍵詞:離心式風扇葉片設計田口法
外文關鍵詞:Centrifugal FanTaguchi MethodDesign of Blade,and Flow Field
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本研究於離心式風扇可分為二大步驟,首先設計出65×50×04 mm離心式風扇三款不同葉型葉片及蝸道的三維幾何外形後,利用CFX進行流場分析,選出可達最大風量之葉型,接著決定控制因子及水準,包括舌口間隙、扇葉葉片數目、上下入風口直徑扇葉外徑這4個設計參數,以田口直交表決定本實驗之風扇設計參數,在不改變風扇基本尺寸的情況下,依影響風扇性能和的比重,選出4個主要的風扇設計參數來作探討分析,也就是決定田口方法內的控制因子,配合田口方法設計的因子水準及直交表,決定各組實驗樣品的參數,再利用電腦輔助設計與製造來產生風扇樣品,可以實際量測得到離心式風扇性能數據,以進行田口實驗,其第二部分,將各組樣品實際量測所得到的風扇性能品質,用田口式方法來計算其中的S/N因子回應及變異數分析,對各個因子的水準強度做成回應表來決定因子間風性能最佳化的搭配組合,求得最佳化的風扇參數組合。

This study presented the optimum design of centrifugal fan by using Taguchi method. In this study, the sizes of centrifugal are 65-mm in length, 50-mm in width and 4-mm in height. CFX software provided by ANSYS Inc. was used to obtain the optimum airfoil type which can reach maximum air flow rate. The four design parameters obtained by Taguchi orthogonal array include the number of blade, diameter of impeller, entrance diameter, and tongue clearance. The samples of centrifugal fan made by CNC machine were measured to obtain the performance of centrifugal fan.
Using the experimental results, the S/N factor and variance analysis were calculated by using the Taguchi method. This study made the table of response by using the weight of each factor. The optimum centrifugal fan can obtain by the table of response.


摘 要............i
Abstract ..............ii
目 錄............iii
表 目 錄............iv
圖 目 錄..............iv
符號說明.........vii
第一章 緒 論.........1
1.1 研究動機與目的...........1
1.2 文獻回顧...........2
1.3 全文概述..............8
第二章 離心式風扇設計基本方法........... 11
2.1 離心式風扇設計[17] ...........12
2.1.1 離心式風扇葉片類型簡介.......12
2.1.3 蝸殼設計..........18
第三章實驗方法與步驟..........20
3.1 實驗量測設備........20
3.1.1 風扇性能量測設備..........21
3.1.2 風扇振動噪音量測設備及環境..........22
3.2 模型測試方法............26
3.3 扇葉葉型設定.........27
3.4 流場數值分析...........28
3.4.1 建立模型網格.................28
3.4.2 邊界條件設定...............31
3.4.3 離心式風扇之數值模擬........32
3.5 田口最佳化實驗計畫............37
3.5.1 控制因子、水準及直交表設定........43
4.2 離心式風扇性能SN 因子回應分析.........52
4.4 靜壓SN 因子回應分析.........55
第五章 結論......63
參考文獻........65

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