• In part II, by the same way, we consider first-order impulsive differential equations with integral boundary value problems.

    第二部分中,同样方法我们讨论一阶脉冲微分方程积分问题

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  • A 3d integral boundary layer approach is used and coupled with streamline method for determining vortex-layer-type flow separation.

    本文利用积分边界层结合流线决定涡层型流动分离

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  • Finally the main results are used to establish some existence results for positive solutions of integral boundary value problems for ordinary differential equations.

    把所得结果应用于研究常微分方程积分问题存在性,所得结果推广和本质上改进马如云等作者最近的一些结果。

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  • The choice of the integral boundary of non-singularity BEM is studied in this paper. The values of the effective choice-section of different engineering problems are given.

    本文对无奇性边界积分周界选取问题进行了研究,给出了针对各类工程问题的有效的积分周界选取范围。

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  • By using fixed point theory, in this paper we study the existence of triple positive solutions for a class of second-order differential equations with integral boundary conditions.

    运用不动定理研究一类积分边界条件二阶微分方程存在性

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  • The coupled boundary integral equations and their reduced forms are deduced for hybrid mode problems, and these equations are discreted into a system of linear algebraic equations by moment method.

    导出关于混合耦合边界积分方程组及其退化形式,并用将之离散齐次代数方程组,从而得波导混合模传输常数;

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  • A new boundary integral equation is introduced to analyze plane elastic problems with cracks, and the boundary element numerical method based on this equation is established.

    给出一个适用于平面断裂力学分析边界积分方程方程的基础建立了边界数值计算方法

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  • Mean velocity profile, turbulence intensity profile, integral scale and wind spectra are the most fundamental characteristics that describe the atmospheric turbulent boundary layer flow.

    平均速度剖面湍流度剖面,积分尺度和风反映大气湍流边界层流动四个基本因素

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  • In this paper numerical solution methods of hypersingular integrals in boundary integral equation have been summarized together with some of their applications.

    本文边界积分方程所存在奇异积分数值解法综述,并介绍了它的一些应用。

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  • Avoiding singular fundamental solution, the paper using non-singular fundamental solution to establish the boundary integral equation.

    本文避开奇异基本奇异基本解建立边界积分方程

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  • This paper presents mechanical quadrature methods for solving the boundary integral equations of nonlinear boundary value problems.

    本文提出了解非线性问题边界积分方程高精度机械法。

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  • The treatment of point source and infinite boundary in solving the integral equation by BEM are developed.

    研究了边界单元法积分方程点源无穷边界处理方法

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  • The boundary integral equation in homogeneous media was dispersed into algebraic equations through the use of spline function.

    采用条插值函数均匀介质边界积分方程离散代数方程组

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  • Then correspondently, we obtain the specific variational principles, bounded theorems, and boundary integral equations of the second stage problems.

    得到对应的各类变分原理界限定理第二阶段问题边界积分方程

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  • The numerical results show that higher spline weight functions in the local boundary integral equation method have excellent properties.

    表明函数局部边界积分方程方法好的收敛性、稳定性和精度。

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  • The algebraic equation from the dual boundary integral equations(DBIE) was solved using the generalized minimum residual method(GMRES).

    基于对偶边界积分方程DBIE)构造代数方程组采用广义极小残值迭代GMRES)求解。

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  • In this paper, a boundary integral equation method is applied to compute the dynamic stress intensity factors of collinear periodic antiplane cracks.

    本文采用一种边界积分方程计算共线周期反平面裂纹应力强度因子

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  • The efficiency of above-mentioned method for solving these problems is tested by comparison with the boundary integral method.

    通过边界积分方法比较验证了有限元—人工透射边界方法解决此类问题有效性

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  • This paper studies a class of singularly perturbed two order integral differential equation boundary value problem with mixed boundary conditions.

    研究一类具有混合边界条件摄动积分微分方程问题

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  • We present a quadrature method for mixed boundary integral equations of stable problems, which provides high accuracy and less complexity.

    提出求积稳态问题混合边界积分方程拥有高精度复杂度

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  • The flow parameters such as discharge, free surface profile and boundary pressure distribution are simulated by numerical calculating the boundary integral equations.

    通过数值求解边界积分方程组,对流量水面线压力水力参数进行了数值模拟。

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  • In numerical calculation, the paper employs the collocation method to compute the coupled boundary integral equations with quadrangle constant elements.

    数值计算采用配置计算耦合边界积分方程使用四边形单元。

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  • With the consideration of surface tension the boundary integral method and numerical solution method for simulation of a cavitation bubble collapsing near a rigid wall are derived.

    导出考虑表面张力影响模拟附近溃灭空化气泡特性边界积分方法数值求解方法。

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  • The fundamental formulas of generalized indirect BEM for the Poisson 's and linear elasticity problems are proposed initiating from the boundary integral equation.

    边界积分方程推导了问题线弹性力学问题广义间接边界元法的基本公式

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  • And the distributed boundary value's integral formula of another set of analytic function in upper half-plane is established.

    同时建立了一类上半平面解析函数分布意义下积分公式

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  • The traditional boundary element method of outside domain singularity points for plate bending problems needs two boundary integral equations.

    传统平板弯曲边界域外奇点要求建立二个边界积分方程才能求解。

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  • The boundary integral terms of variational principle are cancelled mutually for the adjacent elements.

    原理边界积分对于相邻单元互相抵消

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  • The Kelvin solution to the static linear elastic problem is used as the weighted function to derive the boundary integral equation for steady-state vibration problems.

    本文线弹性问题开尔文作为函数导出稳态振动问题的边界积分方程

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  • By means of boundary element method, the pressure distribution problems in petroleum industry are transformed into corresponding boundary integral equation.

    借助边界油气藏工程中的多油井生产的压力分布问题转化相应的边界积分方程

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  • The direct problem was solved by DRBEM, which eliminated the drawback of domain integral for classical boundary element method and resulted in pure boundary integral calculation.

    问题采用双倒易边界求解该法避免了传统边界元法需进行区域积分缺点,仅需边界积分计算。

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