| 研究生: |
黃唯誠 Huang, Wei-Cheng |
|---|---|
| 論文名稱: |
應用微分再生核方法於複合圓錐截柱層殼之自然振動分析 |
| 指導教授: |
吳致平
Wu, Chih-Ping |
| 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: | 75 |
| 中文關鍵詞: | 無元素法 、微分再生核方法 、殼 、圓柱 、圓錐 、截錐 、複合材料 、複合層殼 、振動 、自然振頻 、一階剪力變形理論 、古典殼理論 |
| 外文關鍵詞: | meshless method, free vibration, shell, FSDT, CST, Love, truncated, vibration |
| 相關次數: | 點閱:128 下載:2 |
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本文利用無元素法中的微分再生核方法(DRKM)針對Love所推導古典殼理論(CST)與一階剪力變形理論(FSDT),分析複合圓錐截柱層殼自然振動頻率,並與DQ法及有限元素法做比較,分析結果與三維漸進理論做評估討論。
無元素法目前在工程方面被廣為運用及探討。無元素法發源於1977年,由Lucky所提出。之後提出移動最小二乘法(Moving Least-squares Approximation),直到1995年,由Liu提出再生核近似才大致抵定。本文實際利用微分再生核方法來處理振態問題,並探討其精確性與收斂性,並試圖找出微分再生核方法的經驗法則。
數值範例上,本文針對邊界條件簡支承配合圓錐半頂角作了均向性圓環形層板、正交疊合圓柱層殼及正交疊合圓錐層殼之自然振動分析。另外還分析開放式複合圓錐截柱層殼之振態分析。參數分析中則改變幾何參數、疊層排列情形,求解基本自然振動頻率及其對應的模態數,並作各種數值方法與理論的評估比較。
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Chandrashekhara, K. 1995 Thin-Walled Structures 22, 291-318 Assessment of Shell Theories for the static analysis of cross-ply laminated circular cylindrical shells.
Lam, K.Y. and Li, H. 2002 Journal of Sound and Vibration 251(2),329-348 Generalized differential quadrature method for the free vibration of truncated conical panels.
Leissa , A.W. 1973 NASA SP-288. Vibration of Shells.
Leissa , A.W. 1969 NASA SP-160, Vibration of plates.
Noor, A.K. and Burton, W.S. 1990 Applied Mechanics Review ASME 43, 67_97. Assessment of computational models for multilayered composite shells.
Reddy, J.N. 1990 Shock Vibration Digest 22, 3_17. A review of refined theories of laminated composite plates.
Shu, C.1996 Journal of Sound and Vibration 194, 587_604. Free vibration analysis of composite laminated conical shells by generalized differential quadrature.
Shu, C. and Du, H. 1997 Composites Part B 28B, 267_274. Free vibration analysis of laminated composite cylindrical shells by DQM.
Soedel, W. 1993 Vibrations of Shells and Plates. New York: Marcel Dekker.
Soldatos, K.P. 1994 Applied Mechanics Review ASME 47, 501_516. Review of three dimensional dynamic analyses of circular cylinders and cylindrical shells.
Timarci, T. and Soldatos, K.P. 1995 Journal of Sound and Vibration 187, 609_624. Comparative dynamic studies for symmetric cross-ply circular cylindrical shells on the basis of a unified shear deformable shell theory.
Tong, L. 1993 International Journal of Mechanical Science 35, 47_61. Free vibration of composite laminated conical shells.
Tong, L. 1993 International Journal of Engineering Science 31, 719_733. Free vibration of orthotropic conical shells.
Wang, J. and Liew, K.M. 2002 International Journal of Mechanical Science 44,1275-1293 Analysis of rectangular laminated composite plates via FSDT meshless method.
Wang, X., Striz, A.G. and Bert, C.W. 1993 Journal of Sound and Vibration 164, 173_175. Free vibration analysis of annular plates by the DQ method.
Wu, C.P. and Wu, C.H. 2000 Computational Mechanics 25, 346_357. Asymptotic differential quadrature solutions for the free vibration laminated conical shells.
Zhao, X. and Liew, K.M. 2003 International Journal of Solids and Structures 40,161-180 Vibration analysis of laminated composite cylindrical panels via a meshfree approach.