查询词典 boundary condition

Create Jinfeng 62 (1.2MW) temperature model of mathematics and physics about permanent magnent synchronous generator in wind power, present basic hypothesis and boundary condition. select area that one slot opposite to calculate, utilize FEM calculate roter and stator temperature field. bring forward actual method, carefully analyse the result to generator temperature field, for example reduce coil insulation thickness, decrease conduction coefficient because insulation aging between circle, increase iron-core anisotropism conduction coefficient.

建立了金风62型(1.2MW)永磁同步风力发电机的二维温度场的数学和物理模型，给出了计算边界条件和分析假设条件，以一个槽所对应的电机计算区域，利用有限元方法计算发电机的定、转子温度场，详细分析了绕组线棒绝缘厚度减小、匝间绝缘老化致使导热系数减小、铁心各向异性导热系数提高等参数改进对于发电机温度场的影响。

Chapter 2 is to discuss features of geological environment in mine, including its structure, existence environment, and boundary condition and slope's stability. Restrict reaction of geological environment to mining is stressfully studied.

第二章讨论了矿山工程这一特定工程背景下地质环境的特性，分别从地质环境的建造特征、结构特性、赋存环境、边界条件、边坡的稳定性等方面对地质环境进行了深入而具体的研究，重点讨论了地质环境对于矿山工程制约作用。

Resently, by considering the heat diffusion, rigorous thermal and mechanical boundary condition, arbitrary laser intensity, and volumetrical heating, someone already made a real picture of reaction of laser with material and the theory comparable to practice.

近年来，已有人通过考虑热扩散、准确的热和机械边界条件、随时间任意变化的激光加热强度以及体吸收等，使得较真实的激光与材料相互作用图象得以展现，理论与实验结果的比较成为可能。

First the three-dimensional Hailmuhz equation of magnetotelluric field is split into two 2D equations which could be changed into 1D equation by Fourier transformation method. The two zootomic coefficients of the equation are found out by the derivation of vertical component of electromagnetic field being sufficient the equation and the boundary condition. The resolution of 1D equation can be confirmed.

首先将大地电磁场满足的三维亥姆霍兹方程降维分裂成两个二维响应方程，然后对每一个二维方程进行傅里叶变换，使二维方程变为一维方程，通过大地电磁场垂向方向的导数在地面上所满足的边界条件，确定外推方程中的两个待定系数，从而得到一维外推方程的解。

Then the finite difference method is employed to predict the thermal regime in asphalt pavement structures with a specific program. After itemizing the flaws in existing pavement temperature prediction theoretical methods, the boundary condition and the thermal parameters are confirmed.

然后通过对现有沥青路面温度场理论计算方法的详细分析，确定出了有限差分计算模型中的边界条件表达式以及材料热物理参数的合理取值范围。

The FEM, whose process is very *** and is fit to deal with complex boundary condition, is used to simulate the frequency-domain IP. Studying the characters and laws of IP\'parameters under different measuring devices and undulate topography will provide scientific references and basis and reduce the multiplicities of interpretation. It is will be an attempt and exploration.Because of the frequency of the exciting currents is usually between 10-2～102 Hz, the vector A can be seen is not change with the time and the EM effect can be ignored in the low frequency.

双频以及伪随机三频激电法以它特有的轻便、快捷、高效率等特点在有色金属矿躲勘探领域里获得了广泛的应用，运用有限单元法的推导过程简单、适合处理复杂几何外形等特点来对双频以及伪随机三频激电法进行正演数值模拟，分析和研究了激电参数在不同丈量装置、模型参数和起伏地形情况下的特点和规律，为后续的资料解释提供科学的依据和参考，为减少地球物理中的多解性做一些有益的探索和尝试。

In this paper,based on determination of initial and boundary condition,implicit difference method was used to present difference equations in order to simulate soil water movement of one-dimensional ponded water infiltration,redistribution and evaporation mathematically.

而数值法则可采用不同的初始和边界条件，实现复杂条件下水分运动过程的预测，从而给出相应条件下水分运动的分布规律[1，2]。

By the analysis of coupling of heat and stress, it is indicated that the coupling of heat and stress of boundary condition is main reason that results in scuffing failure.

通过采用有限元法对阿姆斯拉试验机上试块的三维温度场、等温接触应力场及热应力场的计算，阐述了热应力在摩擦化学反应中的重要作用。

It is very important to understand the effect of oil film reformation and rupture boundary condition on the journal bearing performance when journal, bearing block perturbation and inlet oil pressure exist.

由于轴颈、轴承扰动的作用和进油压力的不同，油膜形成和破裂边界也发生相应的变化，因此有必要研究上述变化对轴承性能的影响。

Study is aimed at box threads of Φ177.8mm drill collar to analyze and calculate drill collar box thread with different stress-relief grooves using finite element method, the stress concentration of thread end of 3 types of box threads is gained under same boundary condition and load.

以177.8mm钻铤母螺纹接头作为研究对象，用有限元方法对加工有不同应力减轻槽的钻铤母螺纹接头进行了分析计算，得出了3种不同母螺纹结构在相同边界条件和载荷作用下螺纹消失端的应力集中情况。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。