With the rapid development of computer technology and information industry , mesh technique is implemented to solve complicated numerical analytics and simulation in engineering fields , such as calculative mechanics , hydrodynamics , finite element analysis . correlative mesh is deeply researched in this thesis which mainly emphasizes on : several techniques about surface meshing are researched including mapping delaunay paving and quadtree 随着计算机技术和信息技术的广泛应用和飞速发展,网格生成技术已成功应用于计算力学、流体力学、有限元分析等工程领域,成为解决工程领域复杂问题数值解析与模拟的强有力的手段,逐渐成为融各学科于一体的具有广泛应用前景的关键技术。
In this paper , with complete calculation micro - mechanics method , mass concrete was taken as three - phase composites , which consists of mortar matrix , aggregate and bond between matrix and aggregate . with nonlinear finite element method , the simulation of static and dynamic mechanics performance of the uniaxial compress concrete specimen of dongjiang arch dam and simple supported beam specimen of xiao wan arch dam was studied by means of the software of msc . marc . the number of all kinds of mortar matrix was calculated according to grading of aggregate of three graded concrete and walraven function 本文采用完全细观计算力学方法，将大体积混凝土在细观层次上看成是由粗骨料颗粒、硬化水泥砂浆及其二者之间的粘结界面组成的非均质复合材料，采用非线性有限元方法，在对大型商业有限元软件? msc . marc二次开发的基础上，对东江拱坝的三级配混凝土轴压试件、建设中的小湾拱坝三级配混凝土梁试件在静、动荷载下的力学性能和破坏过程进行了数值模拟。
With great developments in modem mechanics , computational mathematics and computer technology in hardware and software , finite element analysis has made rapid progress in both theory and computational technology . more and more general - purpose or specialized programs have been developed in use , and costs on performing fea are reduced shapely 随着现代力学、计算力学以及计算机技术在软、硬件方面的发展，有限元分析无论是在理论，还是在计算技术方面都已取得了巨大的进步，很多通用有限元程序和专用程序都投入了实际应用，对结构进行有限元分析所需要的费用也迅速减少。
With the development of the computer and calculating dynamics , in recent years many researchers from different countries begin to research the coupling between train and line . the research on the coupling between vehicle and brid ge with the finite element method becomes one of the very important constitutional parts 随着计算机和计算力学的发展，近年来各国铁路科研工作者开始对列车?线路耦合系统进行研究，其中，车?桥耦合振动的有限元分析研究就是近年来发展起来的一个重要组成部分。
