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研究生： 林柏叡
Lin, Bo-Ruei
論文名稱： 電腦輔助材料製程分析函式庫開發研究
Development of CAE subroutine library for material process
指導教授： 黃文星
Hwang, Weng-Sing
學位類別： 碩士
Master
系所名稱： 工學院 - 材料科學及工程學系
Department of Materials Science and Engineering
論文出版年： 2010
畢業學年度： 98
語文別： 中文
論文頁數： 113
中文關鍵詞： 電腦輔助工程分析 、函式庫 、材料製程 、顆粒標記法 、流體體積法 、等位函數法
外文關鍵詞： CAE, subroutine, knowledge-based, level set, VOF, MAC
相關次數： 點閱：73  下載：0 
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    • 在製程技術的開發裡，使用電腦輔助工程分析來降低時間與成本，已經是一個重要的趨勢。本研究以知識管理為出發點，針對製程技術中，不同的物理化學依據，以及電腦輔助工程分析所使用的相關程式，建構電腦輔助材料製程分析函式庫。並以網頁形式呈現此知識庫。
    本研究所建立之知識庫具備分類清晰的架構；首先依據電腦輔助工程分析的原理，將其分為前處理、計算核心、後處理這三大區塊。其中計算核心又區分為流動、質傳、微組織、表面追蹤、熱傳遞及縮孔指標等六部份。每部份分為原理介紹以及相關程式碼說明。
    本研究所建立的函式庫具有知識管理之價值，不僅可以幫助剛接觸使用電腦輔助工程分析於材料製程的初學者瞭解各個物理依據，以及相關的數值方法，也可以使進階人員選取相關的程式進行開發研究。而與其他的學習管道比較，本函式庫網站不僅便於增修、更新與擴充，更具備全文檢索功能，對於知識取得是一個非常好的管道。

    In the material manufacturing process development, it is important to cost down by using computer aided engineering technology. In order to extract knowledge effectively, we need a knowledge-based system with a clear structure. In this study, a knowledge-based system for CAE in material processes has been established from the standpoint of knowledge management and demonstrated in the form of web-sites.
    A clear structure was constructed in this knowledge-based system. In the first level, all files were classified into three subjects based on CAE definition: pre-processor, simulation kernel and post-processor. In the second level, simulation kernel was classified into six categories: fluid flow, mass transfer, solidification morphologies, surface tracking, heat transfer and casting defect. Every category including two parts: physical phenomena and subroutine.
    The subroutine library knowledge-based system has the value of knowledge management. It can not only help the beginners but also more experienced engineers in the field of CAE in material processes. Compare with other ways of knowledge acquisition, this knowledge-based system is easier to be modified and updated. In addition, it also has a Site-search function to enhance its value.

    中文摘要 II ABSTRACT III 致謝 IV 目錄 VI 表目錄 X 圖目錄 XI 符號說明 XIII 第一章 緒論 1 1.1 研究的動機與目的 1 1.2 研究流程 2 1.3 研究內容與架構 3 第二章 文獻回顧 7 第三章 知識庫系統的架構 9 3.1 前處理 9 3.1.1 網格的分割與變數設置 10 3.2 計算核心 11 3.2.1 流動 11 3.2.1.1 單相流－層流 11 3.2.1.1.1 數學模式理論 11 3.2.1.1.2 數值方法 13 3.2.1.2 固體邊牆邊界條件 16 3.2.2 表面追蹤 17 3.2.2.1 顆粒標記法 18 3.2.2.2 流體體積法 19 3.2.2.3 等位函數法 27 3.2.2.4 自由表面的邊界條件 32 3.2.3 熱傳遞 34 3.2.3.1 熱傳導 34 3.2.3.1.1 控制方程式 34 3.2.3.1.2 控制方程式的差分化 35 3.2.3.2 熱對流 35 3.2.3.2.1 強制熱對流 35 3.2.3.2.2 自然對流 37 3.3 後處理 39 第四章 模組組合展示 53 4.1 表面追蹤模組的運用 53 4.1.1 數學模型 53 4.1.2 結果與討論 55 4.2 熱對流模組的運用 56 4.2.1 數學模型 56 4.2.2 結果與討論 58 第五章 函式庫系統操作界面 71 5.1 網頁設計軟體工具 71 5.2 使用範例 72 5.2.1 利用主選單 72 5.2.2 全文檢索功能 73 第六章 總結 82 第七章 未來工作 83 參考文獻 84 附錄A 動量方程式的詳細差分式 92 附錄B 壓力和速度的修正推導 99 附錄C 界面法向量的詳細差分式 105 附錄D前向及逆向問題 107 附錄F 能量方程式的詳細差分化 113

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