查询词典 boundary element method

The scaled boundary finite-element method is a novel semi-analytical technique for solving the linear partial differential equation.

比例边界有限元法是线性偏微分方程的一种新的数值求解方法。

In Chapter 6,the adaptive finite element method for a parabolic problem isextended to the problem with the Neumann boundary as its theoretic supplement.

第六章作为对抛物问题的自适应有限元方法理论上的补充，将其推广到具有Neumann边界条件的抛物问题，得到了相应的后验误差估计。

Effects of the number of cells and relative density on the elastic properties of closed-cell foam model are investigated by the finite element method and periodic boundary conditions.

建立十四面体的单胞模型和多胞模型，采用有限元方法和周期性边界条件，研究胞体数目和相对密度对闭孔泡沫模型弹性性能的影响。

The formulas are derived from the classical theory of thin shells, The thermal stresses for three kinds of boundary conditions are calculated separately by the theoretical formulas derived from a cubic polynomial temperature distribution and by the finite element method, SAP5 program.

并以三次多项式温度分布为例，计算了三种边界条件(自由端、固支端、简支端)下，理论的和有限元的热应力曲线，对固支端进行了热应力实验，绘制了实验曲线。

In this thesis, transient problem of three dimensional dynamic interaotion is investigated for thick cylindrical shell in semi-infinite media under shock load. An analytical solution--boundary element coupling method is presented.

本文研究半无限介质中圆柱厚壳受冲击荷载作用，与介质三维动力相互作用的瞬态响应问题，提出一种解析解——边界元耦合方法。

In this paper we suggesst a finite element method for singular two point boundary value problems with singular solution by introducing singular basis with local support.

采用具有小支集的奇异基函数的有限元方法求解奇异两点边值问题的奇异解。

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。

Combining the actual rockburst status after excavation, based on the previous research data in the earlier stage, the character of the tectonic stress in Cangling Tunnel is studied. Finite element method is adopted to simulate the site excavation steps. At the same time, the tectonic stress is changed on the boundary of the model to simulate the actual rockburst areas; and the most proximal area's value is adopted to decide the section tectonic stress. Then, other sections' values are revised.

从苍岭隧道的构造应力场特征入手，结合现场开挖后岩爆实际发生状况，在前期研究资料的基础上，利用有限元计算分析，模拟现场实际施工步骤的同时不断改变模型边界上的构造应力来拟合实际岩爆区，以最接近实际破坏范围的计算结果界定区段构造应力值，据此对隧道各区段的构造应力进行修正。

A 3D lithosphere model of the Indo-Australian plate is constructed and numerical simulation of the tectonic stress field of the Indo-Australian plate is performed by using the pseudo-3D finite element method and adopting the WSM2000 observed stress data and stress state as constraints, and then the influence of the boundary forces applied at the Indo-Australian plate on the intraplate stress field is discussed.

本文采用伪三维有限元方法，利用 WSM2000观测应力场数据的应力取向和应力状态作为主要约束，建立了印度—澳大利亚板块岩石层三维模型，对印度—澳大利亚板块构造应力场进行了数值模拟，进而探讨印度—澳大利亚板块所受边界力对板块内部应力场的影响。

Thermo-mechanical coupling finite element method is used to calculate the six inherent strain components and the angular distortion of the lap joint, and each inherent strain component is mapped into the model in the form of boundary condition for linear elastic analysis, the angular distortions of the lap joint are got.

采用热弹塑性有限元法计算出搭接接头的六个固有应变分量和角变形，并以各个固有应变分量作为边界条件，对搭接接头的有限元模型进行弹性分析，计算出各个固有应变分量对应的角变形。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。