查询词典 finite dimensional

A discretization equation is derived by using a finite volume method in three-dimensional cylindrical polar coordinate system.

对单相螺旋流流场数值求解的基本方法与有关问题进行了分析。

The three-dimensional nonlinear finite element modeling is used to analyze stress-strain response of solder joint under certain power cycling loading condition.

采用非线性有限元方法，分析了CSP封装形式的焊点在给定功率循环下的应力应变。

Three-dimensional nonlinear finite element modeling was used to analyze stress-strain response of 63Sn37Pb solder joint under power cycling loading conditions.

本文采用基于单一内变量亦即形变阻抗的统一型粘塑性Anand本构方程，描述了63Sn37Pb钎料的粘塑性变形行为，采用非线性有限元方法分析63Sn37Pb钎料焊点在功率循环下的应力应变过程。

In this paper, the primitivity of n-th order transition matrices An are studied, this topics related to the mixing property of 2-dimensional shift of finite type.

在这篇论文中，讨论n阶置换矩阵An的原始性质。而这些主题与2维有限型的移位之混合性质有关。

Aimed at the minimum maximum principal stress,based on three dimensional finite element analysis,with the help of FEM software,an optimization method is used to design the main parameters of the joint cross of universal coupling.

利用ANSYS软件对轧机主传动系统的万向联轴器十字轴进行三维有限元分析，在此基础上，以十字轴所承受的最大主应力最小作为追求目标，在ANSYS软件中对其主要参数进行了优化，得出了较为理想的结果。

In this paper, three-dimensional elastic-plastic contact problem of the wheel/rail system is solved using the finite element parametric qua...

提出用轮轨接触的轮周位移计算蠕滑率的新方法，并对在各种参数下所得到的蠕滑率进行了分析比较。

We obtain the asymptotic estimates for the Bergman kernels and Bergman metrics (3-d case) for a class of higher dimensional pseudoconvex domains of finite type.

对于一类高维有限型拟凸域，我们得到了Bergman核和三维时Bergman度量的渐进估计。

In this paper, a model forwheel/rail with arbitrary profiles contacting in an arbitrary point is built to calculate contact area and contact surface stresses. Then bytakingthe calculated surface stresses as applied load, the stresses inside the railhead are calculated through the three dimensional elastic-plastic finite element method.

建立了一个任意形状钢轨和车轮在任意点接触时，接触面形状和接触面力的计算模型，然后把计算出的接触面力作为外载施加到三维弹塑性有限元模型中，进行轨头内部应力的计算，从而构成一个完整的计算方法。

2D transient model for rapid laser remelt;2. A two-dimensional symmetrical transient model applicable to cold-start emission applications was integrated, which was solved by the finite volume method.

描述了三效催化器的流动、传热传质和异相催化过程，分析了催化器的径向热导率的修正方法，比较了尾气分别作为双组分和多组分混合物时对其组分扩散系数的影响，集成了可用于模拟三效催化器的冷起动性能和暖机性能的二维轴对称瞬态模型，模型采用有限容积法求解。

Firstly, owing to the existing restriction with insufficient function while imitating the construction using top-down method of business software in common use, this text compiles three-dimensional finite element procedure of plasticity using the model of revisal Cambridge procedure, which better reflect the nature of soil and the force bore ;Secondly, utilizing the procedure compiled , the emulation analysis is used in the large-scale case, which study the responding law of the soil pressure around the case containing, the roof, sheet pile, wall and the floor with the progress of the construction in the course of the construction using top-down method and the distribution law of the stress in the real vehicle.

本文首先针对现有通用商业软件在模拟逆作法施工时功能不足的限制，研编了可以考虑修正剑桥模型的三维弹塑性有限元程序，该程序能较好的反映工程场地的土性和受力，模拟逆作过程；其次，利用研编的程序，对大型箱涵进行了仿真分析，研究了箱涵在逆作过程中周边土压力，顶板，板桩，桩间墙和底板随施工步序进展的系统响应规律，以及箱涵建成后，在实际车辆荷载下箱涵结构的应力分布规律。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。