The proposed finite difference boundary condition expands the scope of application of FDTD to scattering problems of objects with a finite acoustic impedance but without tangential stress .

导出了水中透声目标表面边界条件的时域有限差分（FDTD）表达形式，将FDTD在水声学中的应用范围扩大到无 切 应 力的有限声阻抗目标的散射问题。

Through numerical treatment and normal-tangent iteration the normal contact stress tangential stress and contact width of plastic gears are acquired .

对该积分方程组经过数值处理和法向& 切 向问题的选代运算后，则可以求得塑料齿轮副啮合轮齿的法 向接触应力、 切 向 接触 应 力和接触区宽度。

The method of overcoming the defects is to reduce the axial pressure of the rotating wheel and to reduce tangential stress .

克服缺陷的方法是减少旋轮的轴向压力，降低 切 向 应 力。

Relatively the different radial gradient of the elastic constants will have a great influence on the tangential stress and the radial displacement .

相对而言，弹性模量沿径向的不同梯度模型对 环 向 正 应 力和径向位移的影响要大一些。

Both radiative compressional and shear wave energies from point volume radial shear and tangential stress sources greatly increase with the raise of their frequencies .

随着频率的增高，点膨胀源、径向 应 力源 和 切 向 应力源的辐射纵波和横渡能量都有显著增加。

The maximum tangential stress may appear inside the disk or cylinder instead of at the boundary .

最大 环 向 正 应 力可能出现在圆环/筒的内部，而不是在边界上。

In this paper the effect of decoupling charge in smooth blasting on maximun tangential stress relative strain amplitude the peak value of kine - tic strain and the expansion of crack formed by blasting has been expounded .

文中叙述了不偶合装药在光面爆破中的作用，如对最大 切 向 应 力、相对应变幅值、动应变峰值和爆破裂隙扩展等的影响。

Opening point opening angle and maximal tangential stress on ellipse edge are presented under uniaxial compression biaxial compression and uniaxial compression with fissure water pressure respectively .

分别给出了单向压力、双向压力、单向压力与裂隙水压力共同作用3种情况下椭圆边缘开裂点的位置、开裂方向和最大 切 向 拉 应 力 值。

The measured results shows that the damage of the bit body was mainly caused by tangential stress .

测定结果表明，钎头体主要是由 切 向 应 力引起 账 裤破坏。

The distribution of velocity and pressure in fountain region is relative to the surface tension in fluid front weakly but its tangential stress acting on the fluid front leads to large deformation of the shape of front which is different with the ideal semicircle shape .

表面张力对微流体前沿喷泉流动区域的速度压力分布影响很小，但其在流体前沿自由表面上产生的 切 向 应 力使流体前沿的形状产生较大变形，与理想的半圆形相差较远。

The strength of tangential stress showed relation with the angle between kidney and puncture needle and the angle between renal long axis and the long axis of body .

切线 力的大小一是与穿刺针和肾表面间角度有关，二是与肾脏长轴和人体长轴间角度有关。

The distribution of normal stress and the tangential stress of rim-tyre-road contact position are studied .

研究了基于Yeoh模型的轮胎与轮辋和地面接触部位法向力和 切 向 力的分布。

The minimum principal stress criteria adopted in the new model compared with the minimum tangential stress criteria of traditional method illustrates the mechanism during hydraulic fracturing procedure more objectively .

新的理论模型采用了最小主应力破坏准则，与现有方法采用的最小 切 向 应 力破坏准则相比，更客观的表述了水压致裂过程中的力学机制。

When composite flywheel rotates in high speed there will be greater radial stress and tangential stress because of internal force .

复合材料飞轮转子在高速旋转时，由于惯性力的作用，会产生较大的径向应力和 环 向 应 力。

DIFFERENCE METHOD FOR SOLVING THE TANGENTIAL STRESS AT THE BOUNDARY BY BEM The Coupling of Natural Boundary Element and Mini Element for the Stokes Problem on Unbounded Domains

边界元法分析中的边界 切 向 应 力差分算法无界区域上Stokes问题的自然边界元与Mini元耦合法

The tangential stress was still the major factor for controlling the growth of white layer under grease lubrication .

润滑条件下 表面 切 应 力 τ仍是 微动白层形成和发展的主要控制因素。

In this paper difference method is used for solving tangential stress at the boundary on the basis of BEM .

本文在边界元法分析的基础上，用差分法计算边界 切 向 应 力。

In the vicinity of the borehole the tangential stress is maximum and the radial stress in minimum .

得出在钻孔附近 切 向 应 力最大，径向应力最小。

This research shows that the tangential stress increasing greatly during the excavation in the frozen wall is the key influential factor of its deformation and safety .

结果表明：基坑施工中，冻土墙 内环 向 压 应 力增长显著，是影响其变形与安全的关键因素；

The double-faces stresses ( vertical and tangential stress ) of the measuring tool in the hardness experiments especially the vertical pressure are accounted for .

研究中计及了硬度实验中压头下的双向压力（垂直和 切 向 压力）对其硬度的影响，尤其是垂直压力的影响。

The tangential stress at the boundary can not be gained directly in the application of Boundary Element Method to analysing elastic stress .

在用边界元法作弹性应力分析中，不能直接计算出弹性体边界 切 向 应 力。

The mechanism of thermal contact resistance is discussed in detail and influences of hysteresis and tangential stress on this resistance are studied experimentally and theoretically .

本文对产生接触热阻的机理进行了深入的讨论，对影响接触热阻的滞后效应和接触 面上 切 应 力等因素进行了实验研究和理论探讨。

The results of the study show the existence of mud will affect vertical ultimate bearing capacity of single pile from two aspects : normal stress and tangential stress .

研究结果表明：泥皮主要从两个方面影响单桩竖向承载力： 接触面的法 向应力和 切 向 应 力。

The results show that opening point opening angle maximal tangential stress and critical load vary with aspect ratio and inclined angle . The most dangerous inclined angle is obtained accordingly .

结果表明，开裂点、开裂角、最大 切 向 拉 应 力和临界载荷随椭圆的纵横轴比和倾角的不同而变化，由此可得到最危险的倾角。

Strain sensing principle of FBG is analyzed . When FBG is subjected to stress the role of the axial stress is only considered while the tangential stress is ignored . 2 .

着重分析了FBG应变传感原理，在FBG受到应力时，一般只考虑轴向应力作用，而忽略 切 向 应 力的情况下对其进行分析。

Improvement and Application Research on High Strain Dynamic Testing Method for Vertical Bearing Capacity of Foundation Pile ; DIFFERENCE METHOD FOR SOLVING THE TANGENTIAL STRESS AT THE BOUNDARY BY BEM

基桩竖向承载力高应变动测法改进与应用研究边界元法分析中的边界 切 向 应 力差分算法

According to the variation laws of plastic zone stress and displacement fields of concrete lining in the contact process the transfering process of tangential stress of lining and rock mass can be well simulated by setting up precrack element at possible crack position .

根据接触过程中衬砌塑性区、应力场和位移场的变化规律，在其可能开裂部位通过设置预裂单元模拟衬砌开裂后其 切 向 应 力的释放、转移过程。

The radial and tangential stress maximums are both in the inner surface of bearing alloy .

径向 应 力 与 周 向 应 力的最大值位于轴瓦合金层内表面。