In this article , idealized elastic plastic model and three - dimension finite elements programs have applied to analyzing and researching the stress and displacement distribution of 4 high - steep slopes excavated on the wan - liang expressway , and the relationship has been gained between the stress existing in excavated rock slopes and stability coefficient with depth change through the self - made fortrain program ' s application to the computation of slopes " stability coefficient ; at the same time , through the analysis of the slopes " stability coefficient , such conclusion has been gotten that cohesion in the slipping zone has important effect on slopes " stability and some proposals have been presented to improve the anti - shearing ability of the slipping body through enhancement of the cohesion in the slipping body 本文采用概化均质的理想弹塑性模型，利用三维有限元程序分析了万梁高速公路4个高陡边坡开挖各阶段的应力及应变分布，并且编写了fortran程序用于边坡稳定系数的计算，得出边坡岩体应力及稳定系数随着开挖深度的变化关系。并对边坡稳定系数的敏感性进行了分析，得出滑带内聚力的变化对边坡稳定性至关重要，提出了改善滑带岩土粘结状态提高抗剪能力的工程措施。
Qualified heat recovery rate acquired from the merge equation ' s resolve in terms of the fortran program and the hvac - id graph in the course of the theory calculation . determining the experimental equations applying the ortho imitated experimental design on the basis of the simple spray chamber . the experimental date originated running double - spray chamber ' s entrance and exit air 理论计算中通过编制的fortran程序求解组合方程组，并结合hvac - id图求得符合要求的热回收率，其间试验公式是在单喷水室的基础上采用一次正交回归试验设计得到，试验结果是通过对运行的双喷系统中的室内外空气进出口状态参数进行测定而得到。
Finally , in order to improve the efficiency of the calculation and design , a software on finite element graphic treatment using vba connecting fortran program and autocad 2000 is developed to make structural analysis easier than before , with which the internal forces figures ( including bending moments , axial forces and shearing forces ) and structural deformation figures are drawn automatically 4 、为提高设计计算的效率，利用vba开发了相应的有限元图形处理软件，该软件实现了fortran程序与autocad的连接，利用杆系有限元程序计算得到的结果，自动绘制出内力图(包括弯矩、轴力和剪力)以及结构的变形图，图形的自动形成使得计算成果的分析工作简洁、方便。
Based on the viewpoint of interaction between waves in plasmas , the partial differential equation that causes the spectral lines broadening has been deduced from radiation transfer equation of high - frequency electromagnetic waves in plasmas . the numerical solution has been obtained by using the fortran program we compiled . we concretely calculated the spectral lines widths of and fraunhoferx 3704 in corona , fj / a4923 . 9 in dwarf nova oy car and f . / a4934 in the variable star rr lyrae 本文从等离子体波与波相互作用观点出发，由高频电磁波辐射转移方程导出了引起谱线宽度变化的偏微分方程，编写fortran程序求解偏微分方程的数值解，具体计算了日冕绿线f _ exiv 5303和夫朗禾费线3704 、矮新星oycarf _ eii 4923 . 9 、天琴rr型变星f _ ei 4934的谱线加宽值，对以上各谱线加宽中的等离子体致宽效应作了初步计算。
Scientific computation visualization interactive virtual reality computer dynamic simulation etc . , to study thoroughly and carefully on critical technologies such as mixed - language programming simplification of scene models displaying realistic image and animation of 3d scene models and so on in this dissertation , the methods to build scene models were studied and applied to develop a dynamic simulation system of 3d railway scene based on this idea , the major study contents and results can be summarized as follows : 1 ) mixed - language programming can complement each other between different programming languages and the method has a general significance and can become popular many computation models including development of dtm optimum of dtm and reorganization of dtm were developed with fortran language in order to use the ripe codes , the dissertation succeeded in integrating the developed fortran codes to the visual c + + environment and achieving the course of mixed - language programming 2 ) the methods to build scene models for 3d location design were discussed in the dissertation and the development and animation of scene models had been realized by applying synthetically those technologies such as computer graphic computational geometry and geometrical modeling and computer dynamic simulation etc , and adopting opengl 3d graph library then achievement was got by using the technology of 3d visualization to livingly express design results 3 ) combing with the concerned study and development projects , adopting vc + + as development tools and in the light of those theories and algorithms stated in this dissertation , a software , which could build scene models with realism for 3d railway location design , in the name of " the dynamic simulation system of 3d scene of railway " was developed . , the correctness was proved by using the software to build the 3d scene models and achieve their animation of suining - chongqing railway and yunnan - xizang railway 本文综合利用计算机图形学、科学计算可视化、人机交互、虚拟现实、计算机动态仿真等理论和技术，针对混合语言编程、真实感图形绘制以及三维景观模型的动画驱动等关键技术，进行了深入细致的研究，从而探讨了建立逼真景观模型的方法，并基于本文提出的方法研制了一个铁路线路三维景观动态仿真系统。基于这一思想，本文主要研究内容及研究成果如下： 1 )混合语言编程可以实现语言优势互补，具有普遍意义。针对数字地面模型的建立、优化、重组等计算模块是成熟的fortran程序代码，本文成功实现了vc + +与fortran语言的混编； 2 )紧紧围绕三维选线设计中景观模型的建立方法展开研究，综合利用计算机图形学、计算几何及几何造型学以及计算机仿真技术，采用opengl三维图形库，实现了景观模型的建立以及动画驱动，使得三维可视化技术成功应用于选线设计成果的三维直观表达； 3 )结合有关科研课题，利用vc + +开发工具，以本文所述的理论和算法为基础，研制和开发了一个建立三维选线设计逼真景观模型的系统软件- - “铁路线路三维景观动态仿真系统” 。
The stress and deformation in any spots of 3d foundation soils which is under rectangular homogeneously distributed load are calculated and analyzed by methods of elastic theory and fortran program ; 3 . the scope of foundation soils deformation under rectangular homogeneously distributed load is analyzed by the use of slide and move thread theory ; 4 . by using the finite element analysis software of ansys , with engineering examples , the deformation characteristics of 3d elastic - plastic foundation soils under rectangular homogeneously distributed load are imitated and analyzed , at the same time , the method of settlement calculation of soils is checked 研究内容包括： 1 、测试了天然地基、复合地基在不同压板形状及尺寸下承压板下及周围地基土体的沉降，并做了数据计算分析； 2 、利用弹性理论方法和fortran程序分析计算了三维地基土体在矩形均布荷载下任意位置点的应力及变形； 3 、利用滑移线方法分析了均布荷载下土体的变形范围问题； 4 、应用ansyas大型有限元分析软件，结合工程实例，模拟分析了三维弹塑性地基土体在方形均布荷载下的变形特性，并对地基沉降计算方法进行了工程验算。
The main work carried out goes as follows : ( 1 ) the principal theory of nonlinear finite element analysis was expatiated and a computer program was developed with fortran powerststion . the reliability of the fortran program was proved by comparing computed results with experimental results , besides , by using this program . the appropriate length of shear connections of slit shear walls was investigated 本文的主要内容有以下几个方面： ( 1 )阐述了剪力墙结构非线性有限元分析的基本理论，编制了静力非线性分析的fortran程序，程序的可靠性通过理论计算与试验结果的对比加以验证，并用该程序分析了带竖缝耗能剪力墙，探讨了耗能剪力墙结构的连梁合理高度问题。
