Firstly , based on semi - analytical method , the computer code odlcaos for linear consolidation of saturated soil and odncaos for nonlinear consolidation of saturated soil are developed by fortran programming considering the effect of stress history of soil 首先,通过半解析法,采用fortran语言分别编制了求解考虑应力历史影响的单层饱和土地基一维线性固结和一维非线性固结问题的计算程序odlcaos和odncaos 。
Further , the codes of the meso - scale structured finite element grids of concrete are developed . ( 2 ) the fortran program to generate random convex polyhedron aggregate based on the topology of spherical aggregates and the codes of the meso - scale structured finite element grids of concrete are developed ( 2 )为了实现骨料模型和其细观有限元网格的可视化,本文还研究了利用现有商业软件生成多面体随机骨料的可视化混合编程的方法。
Based on the comprehensive reading of references about distribution network reliability , this thesis presents a reliability evaluation method proposed for complicated distribution systems , based on minimal path method and equivalent approach . one city ' s distribution network ' s reliability parameters are calculated using a fortran program 本文在广泛阅读国内外配电网可靠性分析的有关文献的基础上,总结前人的研究成果,针对配电网结构复杂,负荷点密集,计算量大的特点将已有的配电网可靠性分析方法? ?等值法与最小路法相结合提出复杂配电网的可靠性评估方法。
On this basis , fortran program is written to solve temperature and velocity fields in transformer . by using this program we can calculate total flow , duct flow , mean temperature rise of transformer oil , oil time constant , mean oil temperature rise in each winding - coil , temperature distribution in each winding - coil , and stable / transient state temperature field . so this program has a great use value 在此基础上,我们编制了计算自然油导向冷却的具有饼式线圈变压器流场和温度场的fortran程序,程序可以对总油流量,进入各相、各油道的油流量,各线圈内的油流分布,变压器的油平均温升,油的时间常数,各线圈的平均线油温升,各线圈内的油温分布以及各线圈的稳态温度场、暂态温度场进行定量模拟,具有较强的实用价值。
First , the developing approach of software and the evolvement of architecture were introduced , then the concept of com and the database access technology especially asp was discussed . moreover , the method of developing com component by using an available fortran program is proposed , and then the distributed computation was realized 文中首先介绍了软件开发方法及体系结构的演变,对com组件技术进行了研究,讨论了三层结构中关键的中间件技术并对asp做了简要的描述。
Following is the author ' s main workings : building the launching dynamics model of the spin tube gun , obtaining the transfer matrix of the whole system and equation of the characteristic , giving the method of solving vibration characteristic , compiling the fortran program , computing the natural frequency and vibration model 推导了高速旋转和空间大运动的转管炮各个元件的传递矩阵,得到了转管炮系统总体传递矩阵和特征方程,给出了振动特性的求解方法,编制了求解振动特性的数值计算程序。
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。
Based on plane section assumption , this paper presents the methods of calculating the ultimate strength of the columns strengthened with cfrp , and makes a simplification of the methods . a fortran program on nonlinear method is presented to numerically analyze the characteristics of large eccentrically loaded columns strengthened by longitudinal straps of cfrp , calculating results compare well with experimental data 本文在平截面假定的基础上分别推导了碳纤维布纵向粘贴大偏心受压柱的正截面承载力校核和截面加固基本计算公式,并对公式进行了相应的简化;运用fortran语言编制相应程序对纵向粘贴碳纤维布大偏压柱进行了数值分析,本文公式计算结果和程序计算结果均与试验结果吻合良好。
In this paper the introduction of the use cohesive element in concrete structure is given , and a kind of 2 - d isoperimetric cohesive element is deduced . the fracture process of concrete notch beam is calculated by fortran programming . the result shows that the method is feasible 本文主要对内聚模型在混凝土断裂数值模拟中的应用做了一些讨论,并推导出了一种简单的二维六结点等参内聚单元,并用fortran语言编写了含有内聚单元的有限元程序对混凝土切口梁的断裂过程进行了计算。
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。