| 研究生: |
阮智祺 Ruan, Zhi-Gi |
|---|---|
| 論文名稱: |
微分再生核近似法於圓柱殼彈性挫屈之分析 |
| 指導教授: |
王永明
Wang, Yung-Ming |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系 Department of Civil Engineering |
| 論文出版年: | 2004 |
| 畢業學年度: | 92 |
| 語文別: | 中文 |
| 論文頁數: | 46 |
| 中文關鍵詞: | 挫屈 、無元素法 、圓柱殼 |
| 外文關鍵詞: | meshless method, cylindrical shells, buckling |
| 相關次數: | 點閱:82 下載:1 |
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本文是以無元素法(meshfree)理論中發展出來的微分再生核近似法(Differential Reproducing Kernel Approximate Methods, DRKM)來解析一薄殼圓柱彈性挫屈的問題,利用DRKM以離散點建立重生核函數,以重生一微分函數的方式,迅速建立節點間各階微分導數關係,以之建立該圓柱殼挫屈特徵方程式。本文採用 的薄殼理論,其考慮薄膜應力的影響,可以較準確的描述彈性殼的行為。在一維度分析時,需先假定環方向的挫屈模數(buckling mode),以一維的變形函數代入控制微分方程組。引入所解之邊界條件時,利用本文中所介紹處理邊界的方法,將邊界條件引入特徵方程式中並求解,以驗證DRKM對於一薄殼圓柱挫屈問題的適用性。
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