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研究生： 趙龍清
Long-Cing Jhao
論文名稱： 以有限元素法與反應曲面法分析加工路徑對傘齒輪之旋轉鍛造最佳化設計之影響
指導教授： 葉維磬
Wei-Ching Yeh
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
論文出版年： 2015
畢業學年度： 103
語文別： 中文
論文頁數： 109
中文關鍵詞： 旋轉鍛造 、擺輾鍛造 、傘形齒輪 、有限元素分析
相關次數： 點閱：14  下載：0 
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    • 本文將利用有限元素軟體Deform-3D進行模擬分析，研究上模具運動路徑為行星及螺旋軌跡之旋轉鍛造傘形齒輪，並採用六因子三水準Box-Behnken實驗設計，透過迴歸分析建立二階多項式預測模型，求得齒輪在良好填充率下，應變均勻度最小之最佳化解。結果顯示品質特性之預測模型具有精確度；初步研究最佳化結果顯示行星軌跡優於螺旋軌跡。

    In this paper, the FEM simulation model of cold rotary forging is established under Deform-3D software environment. the upper die motion path is a planetary and spiral on cold rotary forging of a spur bevel gear. Using the Box-Behnken design of experiment, through the regression analysis to build a prediction model of second-order polynomial function. Regression analysis simulation result to obtain gears at the optimization in minimum equivalent strain coefficient of variance and good filling rate.As a result, the prediction model of quality characteristics is accurate. A preliminary study showed the best result that planetary better than spiral.

    摘要 i Abstract ii 致謝 iii 目錄 iv 圖目錄 vii 表目錄 ix 符號說明 xi 第一章 緒論 1 1-1 前言 1 1-2 文獻回顧 3 1-2-1圓柱及圓環旋轉鍛造鍛粗加工 3 1-2-2齒輪及複雜幾何鍛件的旋轉鍛造加工 6 1-3 研究動機 8 第二章 基本理論 10 2-1旋轉鍛造成型原理 10 2-2 旋轉鍛造運動分析 13 2-3傘形齒輪模具建立 20 第三章 有限元素法與實驗設計法 23 3-1有限元素模擬 23 3-1-1有限元素法於塑性加工之應用 23 3-1-2有限元素法之力學模式及數值分析 24 3-2 Deform-3D有限元素軟體[35] 25 3-2-1軟體介紹 25 3-2-2 Deform-3D的使用流程 27 3-3模擬參數設定 29 3-3-1旋轉鍛造加工參數及材料性質 29 3-3-2有限元素網格建構與模擬收斂性探討 30 3-3-3行星軌跡有限元素分析結果例 32 3-3-4螺旋軌跡有限元素分析結果例 36 3-4實驗設計法[36] 39 3-4-1反應曲面法 39 3-4-2迴歸分析基本理論 40 3-4-3模擬實驗因子與水準 43 第四章 結果與討論 47 4-1模擬驗證 47 4-2旋轉鍛造傘形齒輪結果 52 4-2-1旋轉鍛造傘形齒輪之成型力 52 4-2-2旋轉鍛造傘形齒輪之填充率 53 4-2-3旋轉鍛造傘形齒輪之應變均勻度 55 4-3模型建構 56 4-3-1行星路徑回歸模型 61 4-3-2螺旋路徑回歸模型 69 4-3-3模型檢驗 77 4-4旋轉鍛造傘形齒輪之最佳化分析 78 4-4-1行星路徑之模擬實驗最佳化 79 4-4-2螺旋路徑之模擬實驗最佳化 81 4-5品質因子對品質特性之效應 84 4-5-1品質因子對填充率之效應 84 4-5-2品質因子對應變均勻度之效應 86 第五章 結論與建議 88 5-1結論 88 5-2建議 89 參考文獻 90

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