研究生: |
陳仕剛 Shih-Gang Chen |
---|---|
論文名稱: |
無元素分析之平行運算暨前後處理研究 A study on Parallel Processing and Pre-/Post-Processing for the Element Free Analysis |
指導教授: |
陳鴻銘
Hung-Ming Chen |
口試委員: |
張大鵬
Ta-Peng Chang 謝佑明 Yo-Ming Hsieh 潘誠平 Chan-Ping Pan |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2007 |
畢業學年度: | 95 |
語文別: | 中文 |
論文頁數: | 180 |
中文關鍵詞: | 前後處理 、無元素法 、使用者介面 、電腦繪圖 |
外文關鍵詞: | Education, Computer Visualization |
相關次數: | 點閱:236 下載:4 |
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本研究針對無元素法分析提出平行化的演算法,以無影響節點排除以及網格區域性分割等策略達成系統資源之記憶體的有效使用以及平行分析之運算效能的提升。
分析程式之前後處理程式,為提供使用者方便建立分析模型及檢視分析結果之圖型化介面,好的前後處理程式能加強使用者與分析程式之間的互動,並充分發揮分析程式之功能,有限元素分析之前後處理程式,發展已有一段時間,其模型之建立與分析結果之呈現已有廣為接受的標準模式,然而無元素法為近年來新興研究發展中的數值方法,現有的無元素法分析程式,多仍以編輯文字檔案的方式來處理分析模型之設定與輸出分析結果。故有必要針對無元素分析研究其之圖型化使用者介面,以期為無元素分析提出一套合乎功能需求、有效率且易使用的前後處理模式,並據以開發原型程式驗證其使用性。
本研究針對二維無元素分析,使用JAVA SWING程式語言作為開發,前處理以視窗輸入的方式建立模型,後處理展示出節點的變位,並提出一系列的建模基本模式,有長方形、扇形、梯形、增減節點網格等模式,使用者可基於這些基本模式的搭配使用,有效率地建立廣泛類型的分析模型,例如由長方形模式組合而成L形、H形、T形等,或是使用長方形和梯形模式組成有裂縫的模型,易可用增減節點模式來處理應力集中等問題,可為無元素法建立可供參考的模式。
The Element Free method (EFM) is a developing method. Since most of the EFM programs today still handle the pre- and post- processing using file I/O, a standard practice for developing the Graphical User Interface (GUI) for general EFM analysis is necessary. This research attempt to propose a GUI based model for building analysis models and presenting analysis results for the Element Free method. A pre-processing model is proposed in this paper based on the study of various types of 2D EFM analysis cases. The model consists of three basic building modes, which are rectangle mode, fan mode, and trapezoid mode to create corresponding building blocks for building a model compositely. In addition, the adjusting modes for adding and deleting individual node or cell are also included for the adjustment of a model in detail. By combining the uses of these building and adjusting modes, various types of EFM models are expected to be built conveniently and efficiently. On the other hand, the general algorithms to display model deformation and model stress based on analysis result for post-processing are also proposed in this paper.
[1]陳金印(2005),”平行物件導向化之無元素法分析”, 碩士論文,台灣科技大學營建工程學系,台北
[2]林禹志(2004),”網路式之有限元素分析服務架構”,碩士論文,台灣科技大學營建工程學系,台北
[3]趙宜峰(2004),”網路式之橋梁耐震評估系統”, 碩士論文,台灣科技大學營建工程學系,台北
[4]林志崑(2004),” Java-based Web 3D 與XML於網路式有限元素分析之應用”, 碩士論文,台灣科技大學營建工程學系,台北
[5]ROBERT D. COOK, DAVID S. MALKUS, MICHAEL E. PCESHA ROBERT J. WITT(2002),”CONCEPTS AND APPLICATIONS OF FINITE ELEMENT ANALYSIS”,WILEY
[6]Lucy, L. B. (1977), “Numerical Approach to Testing the Fission Hypothesis,” Astrophysical Journal, Vol. 82, pp. 1013~1024.
[7]Gingold, R. A. and J. J. Monaghan.(1977) ,“Smoothed Particle Hydrodynamics: Theoryand Application to Non-Spherical Stars,” Monthly Notices of the Royal Astronomical Society, Vol. 181, pp. 375~389.
[8]B.Nayroles, G. Tousot and P.Villon.(1992),” Generalizing the Finite Element Method : Diffuse Approximation and Diffuse Element.” Computional Mechanics, Vol. 10, pp.307-318.
[9]T.Belytschko, Y.Y.Lu and L.Gu. (1994),”Element Free Galerkin Method.” International Journal for Numerical Method in Engineering, Vol.37, pp.229-256.
[10]W. K. Liu, Jun, S., and Zhang, Y. F.(1995), "Reproducing Kernel Particle Methods," International Journal for Numerical Methods in Fluids, vol. 20, pp. 1081-1106.
[11]J. S. Chen, C. Pan, C. T. Wu and W. K. Liu, (1996) “Reproducing Kernel Particle Methods for Large Deformation Analysis of Nonlinear
[12]Zhu T, Zhang J. and Atluri S.N.(1998), “A local boundary integral equation (LBIE) method in computational mechanics, and a meshless discretization approach.” Computational Mechanics, 21, pp. 223-235.
[13]Ohs R.R. and Aluru N. R.(2001),” Meshless analysis of piezoelectirc devices.” Computational Mechanics, 27, pp. 23-36.
[14]Cordes L.W. and Moran B. (1996),” Treatment of material discontinuity in the Element-free Galerkin method. “Computer Methods in Applied Mechanics and Engineering, 139, pp. 75-89.
[15]Krongauz Y. and Belytschko T. (1998),” EFG approximation with discontinuous derivatives.” International Journal for Numerical Methods in Engineering, 41, pp. 1215-1233.
[16]Duarte C.A. and Oden J.T.(1996), “Hp clouds: a h-p meshless method.” Numerical Methods for Partical Differential Equations, 12, pp. 673-705.
[17]Zhu T, Zhang J. and Atluri S.N.(1998), “A local boundary integral equation (LBIE) method in computational mechanics, and a meshless discretization approach.” Computational Mechanics, 21, pp. 223-235.
[18]Braun J. and Sambridge M. (1995),” A numerical method for solving partial differential equations on highly irregular evolving grids.” Nature, 376, pp. 655-660.
[19]Sukumar N, Moran B. and Belytschko T. (1998), “The nature element method in solid mechanics.” International Journal for Numerical Methods in Engineering, 43, pp. 839-887.
[20]Sukumar N, Moran B. and Semenov Y.(2001),” Natural neighbour galerkin method.” International Journal for Numerical Methods in Engineering, 50, pp. 1-27.
[21]Sukumar N.( 2003), “Voronoi cell finite difference method for the diffusion operator on arbitrary unstructured grids.” International Journal for Numerical Methods in Engineering, 57, pp. 1-34.
[22]Cueto E, Doblare M. and Gracia L. (2000),” Imposing essential boundary conditions in the natural element method by means of density-scaled α-shapes.” International Journal for Numerical Methods in Engineering, 49, pp. 519-546
[23]E. Cueto, N. Sukumar, B. Calvo, M.A. Martínez, J. Cegoñino and M. Doblaré (2003), “Overview and recent advances in natural neighbor Galerkin methods” Archives of Computational Methods in Engineering, 10(4), pp. 307-384.
[24]Cai Y.C. and Zhu H.H. (2004), “A meshless local natural neighbour interpolation method for stress analysis of solids.” Engineering Analysis with Boundray Elements, 28(6), pp.607-613
[25]Frank Günthera, Wing Kam Liua, Darin Diachina, Mark A. Christonb(2000)” Multi-scale meshfree parallel computations for viscous, compressible fows.“Comput. Methods Appl. Mech. Engrg.190,pp.279-303
[26]Lucy T. Zhang, Gregory J. Wagner, and Wing K. Liu (2002)”A Parallelized Meshfree Method with Boundary Enrichment for Large-Scale CFD.” Journal of Computational Physics 176,pp.483–506
[27]Toshimitsu Fujisawa, Satoshi Ito, Masakazu Inaba, Genki Yagawa. (2004),” Node-based parallel computing of three-dimensional incompressible flows using the free mesh method.” Engineering Analysis with Boundary Elements 28,pp. 425–441
[28]周原仲(2004),”無元素法之分散式計算”,碩士論文,中原大學土木工程學系,中壢
[29]Reiterer(1993),”The Development of Design Aid Tools for Human Factor Based User Interface”, Systems, Man , and Cybemetice, Intermational Conference,pp.361-366
[30]Craig E. Wills(1994),”User Interface Design For the Engineer”,Electro International Conference Proceeding,pp.415-419
[31]Jengwon Baeg and Yoshiaki Fukazawa(1996),”A Dialog-oriented User Interface Generation Mechanism”,3rd Asia-Pacific Software Engineering Conference,pp.310-317
[32]朱峻平(2003),”元素釋方法計算加速之研究”, 碩士論文,中原大學土木工程學系,中壢
[33]洪維聰(2004),”二維無元素法之網格自動佈建”,碩士論文,台灣科技大學營建工程學系,台北
[34]B.L Ooi and G. Zhao(2005),”Element-free method for the analysis of arbitrarily-shaped hollow conducting waveguides”, IEE Proceedings: Microwaves, Antennas and Propagation,pp. 31-34
[35]G.R.Liu (2003), “MESH FREE METHODS Moving beyond the Finite Element Method” , CRC PRESS
[36]Piotr Breitkopf and Antonio Huerta(2004) , “Meshfree and Particle Based Approaches in computational Mechanics” , Hermes Pent