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The Research on Parallel Computation of Concrete-faced Rockfill Dam Stage Loading in Windows Cluster Environment

Author: ZhangHuiJun
Tutor: LiJunJie
School: Dalian University of Technology
Course: Hydraulic Structure Engineering
Keywords: Faced rockfill dam Progressively loaded Parallel computing Multifrontal
CLC: TV641.4
Type: Master's thesis
Year: 2011
Downloads: 51
Quote: 0
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Abstract


The parallelization of the finite element method is a major trend , based on a variety of distributed storage parallel algorithms for maturing . First parallel computer architecture and parallel finite element method are introduced and summarized , research method and multi- wave wavefront parallel processing technology for concrete face rockfill dam structure rules , section continuous characteristics , its application in rockfill dam construction loaded three-dimensional finite element parallel computation . The main content of this paper include: 1 . Construct a practical LAN cluster system platform . For the current large-scale parallel computer is expensive and difficult to promote the status quo , to take advantage of the resources of the Department of ready-made to build a cluster system , the transfer standard parallel programming environment based on the Windows XP operating system and MPI-2 news . Using multi- wavefront parallel processing technology to achieve a structure of elastic-plastic finite element parallel computing . Master-slave parallel organizational model , all the processes of triangulation substructure independent wavefront static cohesion to the local interface equation , the main process of assembling the overall interface equation and solved it , all the processes to obtain the return of the interface node displacement increment on behalf of obtained substructure nodal displacements , element strain and stress . Improved rockfill dam with finite element parallel computing , application Shuibuya heap in the the dams three-dimensional elastic-plastic finite element analysis , reflects faced rockfill dam construction staging filling and water impoundment load gradually applied material stiffness characteristics, changes in stages through the analysis and comparison of the calculation results show that the algorithm is effective and feasible .

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CLC: > Industrial Technology > Hydraulic Engineering > Water control,hydraulic structures > Dams > Earth dam (local material dams, fill dams ) > Rockfill dam
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