查询词典 boundary condition

Secondly, by applying inverse Fourier integral transform to the displacement, and uniting the constitutive and geometrical equations, the analytical expression of stress in Laplace domain were derived. Thirdly, by defining dislocation density functions, the Cauchy singular integral equations were obtained according to the boundary condition and interface connection conditions, and the problem was reduced to algebraic equations by Chebyshev orthogonal polynomial. Based the these, the unknown coefficient of the algebraic equations can be solved by Schmidt method. Finally, the time response of dynamic stress intensity factor and energy release rate are obtained by inverse Laplace transform.

首先，利用积分变换方法，推导出粘弹性层的控制方程组；其次，引入位错密度函数，并结合边界条件和界面连接条件，导出反映裂纹尖端奇异性的Cauchy型奇异积分方程组，然后，应用Chebyshev正交多项式化奇异积分方程组为代数方程组，并采用Schmidt方法对其数值求解，最后，经过Laplace逆变换，求得动态应力强度因子和能量释放率的时间响应。

The alternating group iterative method for the dispersive equation with periodic boundary condition is presented.

给出了求解具有周期边界条件色散方程近似解的交替分组迭代法。

At the same time the angular point displacement is zero , owing to boundary condition complexity, the plate s dynamical analysis have some hardness.

同时该角点处位移为零，由于边界条件的复杂性，使这类板的动力分析具有一定的难度。

Evaluate the determinant, taking into account that fermionic fields obey an antiperiodic boundary condition,.

估算行列式并考虑费米子场满足反周期边界条件。

Boundary condition ; spongy absorbing ; FFT ; perfectly matched layer ; antiperiodic extension ; paraxial approximation

边界条件；海绵吸收；快速傅立叶变换；完全匹配层；反周期扩展；傍轴近似

The best models suggest that the topographic stress and the convergence forces of the adjacent plate are controlling factors on the active faults in Tibetan Plateau, and the drag force under the lithosphere caused by the convection of the asthenosphere material also plays an important role as the boundary condition of the model.

在考虑青藏高原地形附加重力作用和周边板块汇聚作用对现今大型断裂带运动特征控制作用的同时，岩石圈之下的橄榄岩软流圈至转换带物质对流对岩石圈的拖曳力也是必须考虑的底部边界条件。

Now by integrating (36) by parts repeatedly and using the boundary condition ψ=0 and s=1, the asymptotic expansion for ψis F=xyz.

现在反复对(36)进行分部积分，并使用 s=1 时ψ=0 这一边界条件，则得到ψ的渐进展开式 F=xyz。

Control equation, boundary condition and Bernoulli equation are derived in blade-attached system.

在匹配渐近展开法分析中引入一假想速度位，导出固连坐标系中的控制方程、边界条件和Bernoulli方程。

Moreover, the quasi-analytical expressions of the relative concentrations at the mobile region and the immobile region are deduced respectively by using Bessel equation, Bessel function and the method of Laplace transform under the initial concentration zero and the first or second boundary condition of a semi-infinite one-dimensional space.

并分别在初始浓度为零，半无限一维空间内第一类边界条件和第二类边界条件下，利用Bessel方程、Bessel函数和Laplace变换法推导出了可动区和不动区溶质相对浓度的准解析表达式。

Gravity anomaly Bouguer gravity anomaly Crustal thickness Boundary condition Man-made earthquake

重力异常；布格重力异常；地壳厚度；边界条件；人工地震

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了