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題 名 | 壩體上游面加設緩衝物之力學分析=Mechanics Analysis of Buffer on the Upstream Side of Dam |
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作 者 | 林清華; 鄭堃仁; 段錦浩; | 書刊名 | 水土保持學報 |
卷 期 | 32:2 2000.06[民89.06] |
頁 次 | 頁59-68 |
分類號 | 443.92 |
關鍵詞 | 有限元素; 緩衝物; 阻尼; Finite element; Buffer; Damping; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究利用有限元素法應用軟體MSC/NASTRAN for Windows分析緩衝物之分散應力特性於撞擊時對壩體之影響進行研究。並由理論之探討及分析之結果推論,加設廢輪胎緩衝物對壩體之基本影響為:(一)具分散應力特性,可達保護壩體之效果。(二)有減小整體結構物勁度之作用,降低系統自然振動頻率,使傳遞至固定端壩基之最大歷時反力減小。(三)緩衝輪胎具有較大之阻尼係數,可以提供較佳之消能之效果。 |
英文摘要 | This study used the finite element application software "MSC/NASTRAN for Windows" toanalyze the impact on structures by the effect of stress disperse of buffer. Based on results of theoretical and numerical analysis, we know that the influence of used-tirebuffer on structures is: (1)The buffer provide the effect of stress disperse. (2)The buffer reduce the stiffness and natural frequency of the whole system. And reduce the force transfer to the fixed end. (3)Because the used-tire has higher damping coefficient, it can provide better effect of energy reduction. |
本系統中英文摘要資訊取自各篇刊載內容。