| 1. | A finite element method for quasi - static problems of two - phase porous media 两相多孔介质拟静态问题的一种有限元解法 |
| 2. | Mixed finite element method for quasi - static problems of fluid - saturated biphase porous media 流体饱和两相多孔介质拟静态问题的混合有限元方法 |
| 3. | A mixed integer programming formulation for the off - line version of the problem has been proposed 给出了问题的数学描述,并对其静态问题,构造了一个混合整数规划模型。 |
| 4. | First , the penalty finite element balance equation for quasi - static problem is obtained by the application of galerkin weighted residual method and the introduction of penalty parameter 首先,采用伽辽金加权余量法推导有限元平衡方程,利用罚方法得到求解拟静态问题的罚有限元公式。 |
| 5. | A group of calculated results is obtained when the train goes ahead a distance steps . thus , the results in a period are obtained . in addition , the local stress analysis and the shape optimization of locking hooks are done 对于每种载荷情况计算都按照准静态问题进行分析,不考虑结构的加速度,只考虑载荷作用点(火车车轮)的变化,列车每前进一段距离计算一个受力工况,得到一组数据,得到了一个周期的计算结果。 |
| 6. | In this paper we discuss the three - dimensional quasi - static problems by using the magneto thermo elasticity theory , which is related to geotherm : the situations of the heat - carrying fluid intruding into the vertical or horizontal cracks , and the case of static local high temperature regions 摘要以磁热弹性理论为工具,讨论与地热有关的三维准静态问题:载热流体侵入竖直或水平裂隙的情况和存在静态局部高温区的情况。 |
| 7. | In chapter 3 , the selection of the nni model , input signal and error rule are discussed . then the nni of the nonlinear system is studied . the static and the dynamic problem are clarified separately , and two examples are presented correspondingly 第三章首先对神经网络的辨识模型的选择、输入信号的选择以及误差准则的选择进行讨论,然后对非线性系统的神经网络辨识仿真进行研究,将其中的静态问题和动态问题分开进行论述,最后针对静态问题和动态问题给出相应的实例仿真。 |
| 8. | On the base of mathematical domain decomposition method ( ddm ) , this paper investigates systematically the quasi - static problems based on laplace equation , the transmission problems in waveguide based helmholtz equation and the three - dimensional scattering and radiation problems based on maxwell equations . the theoretical system is built for the further exploration of ddm in electromagnetic problems 本文在区域分解法已有的数学基础上,从基于laplace方程的准静态问题,到基于helmholtz方程的波导传输问题以及基于maxwell方程的三维散射辐射问题,系统地探讨了该方法在电磁领域中的应用,为进一步扩展应用研究建立了理论体系。 |
| 9. | At the same time , the section studies a new amendable method on drawing - up the dynamic extension forms of the motion input - output forms , it discusses the defer problem of input - output analysis too . meanwhile , it points out the fact that motional inut - ouput is a motional problem . however , the authentic economical running which recreates constantly is continual and dynamical , that is to say , it have to think about investing 本章还从静态投入产出模型入手,研究了利用动态投入产出模型编制投入产出表的一种新修正方法,讨论了投入产出分析中时滞问题,并指出,静态投入产出模型是一个静态问题,而现实生活中的经济运行是连续性的,动态的,不断扩大再生产,也就是需要考虑投资的问题,文中还讨论了规划问题和预测问题的前提条件。 |
| 10. | In order to compare with the extreme of dynamic solutions when the mach number approaches zero , i . e . the quasi - static propagation , the corresponding quasi - static problem is also studied asymptotically in the paper . the governing equations of crack - tip field are derived , and numerical solutions are obtained by selections of typical parameter values with combination of boundary conditions of each problem 采用这种率敏感型本构关系,为了与马赫数趋于零时动态解的极限情况? ?准静态扩展情况作对比,本文还对相应的准静态问题进行了渐近分析,推导了裂尖场的控制方程,并选取典型的特征参数,结合问题的边界条件进行了数值求解。 |