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題 名 | A Nodal Based Discontinuous Deformation Analysis Method with Collocation Time Integration Schemes=運用配位時間積分及離散節點技巧之不連續變形分析法 |
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作 者 | 王仲宇; 莊清鏘; 盛若磐; | 書刊名 | 中國土木水利工程學刊 |
卷 期 | 11:3 1999.09[民88.09] |
頁 次 | 頁461-471 |
分類號 | 440.15 |
關鍵詞 | 時間積分; 配位; 消散; 穩定性; 正確性; Time integration; Collocation; Dissipation; Stability; Accuracy; |
語 文 | 英文(English) |
中文摘要 | 本文提出一個新的結合配位時間積分及離散節點技巧的不連續變形分析方法,此一方法可用來處理多體系統的動態接觸問題,其中各離散塊體的變形場採用有限元素理論予以近似模擬。文中將對配位時間積分技巧的穩定性及精確性作較深入的探討,並提出解析離散物體運動的位移增量配位時間積分遞迴式,此一求解架構的功能及精確性則由一些標準動力問題進行評估,經由這些例子本文提出一組較佳的可分析多體動態接觸問題之配位時間積分法參數。 |
英文摘要 | By adopting collocation time integration schemes in the nodal based Discontinuous Deformation Analysis (DDA) method, a new numerical simulation method is developed in this paper. This new method can be applied to the analysis of dynamic contact problems in multibody systems. The conventional finite element theory is used to construct the approximation function for the displacement fields of the individual bodies. The stability and accuracy criteria for the collocation time integration scheme are d rived and studied in detail. Some general solution algorithm formulae for the global incremental displacement vector, related to the collocation time integration scheme, are presented. Several benchmark problems are studied to evaluate the accuracy and capabilities of this newly proposed method in multibody dynamic analysis. Through these numerical evaluations, a better set of collocation time integration parameters is suggested to analysts performing dynamic analyses. |
本系統中英文摘要資訊取自各篇刊載內容。