The distributed source boundary point method(DSBPM) based nearfield acoustic holography(NAH) is used for identifying and localizing noise sources of the roots vacuum pump.
采用基于分布源边界点法的近场声全息技术对运转状态下的罗茨真空泵进行了噪声源识别和定位研究。
In this paper, the boundary point method (BPM) is applied to the study of the non unique solution at characteristic frequency for exterior acoustic radiation caused by vibrating body.
文章利用边界点法，对振动体外部声辐射在特征频率处解的非唯一性问题进行了研究。
The results showed that using the boundary point method to calculate seepage problem has the advantage of easy calculation program, high calculation accuracy, and easy to master and extend.
结果显示，采用边界点方法处理渗流问题，具有计算程序简单，且计算精度较高的优点。
The boundary point method has been applied to solve the problem of dam foundation seepage, and its results are compared with the results from finite element method and fissure network method.
采用边界点法分析坝基渗流问题，编制了计算程序并与有限单元法和裂隙网络法的计算结果比较。
In the point of view of meso - mechanics, the multi-zone boundary element method is used to analyze the behavior of the discontinuous system.
同时，多域边界元法也从细观力学的角度被用来探索这种不连续系统的平面应变问题。
The method is suit - able for plates with arbitrary form, arbitrary boundary conditions and arbitrary inside sup - ports such as continuous plate, point (column) supporting plate, etc.
本方法适于任意形状、任意边界条件和任意内部支承的板，如连续板、点(柱)支承板等，且精度良好。
The shooting method, sub and super solution method, and fixed point theorem were used to study a class of nonlinear diffusion equations with nonlocal boundary value condition in perforated domains.
利用打靶法、上下解方法和不动点定理等工具，研究有孔区域上一类具非局部边值条件的非线性扩散方程。
The method can be used to analyse shallow shell with arbitrary configuration and boundary conditions. It can also be utilized to solve shallow shell with arbitrary internal point supports.
该方法能分析任意边界形状和边界条件的扁壳，还可分析具有任意内部点支承的扁壳。
When the direct boundary element method (DBEM) is used to solve an elastic problem and the field point coincides with the load point, the boundary integral will be strange.
在用直接边界元法解决弹性问题时，当场点与加载点重合时，边界积分方程将出现奇异。
The boundary treatments of both stack section made from plane wave sources and point-shot records prove this method excellent.
文中以平面波源制作的叠加剖面和点源炮集记录的边界处理为例，说明该方法的处理效果是良好的。
This paper introduces the method suited to the separation of land parcel by means of analytic coordinate definition boundary point in the routine cadastral surveying and mapping.
本文介绍了地籍测绘日常工作中宗地分割的方法。该法适合于用解析坐标定义界址点的宗地分割；
In the mobile boundary point by solving the analytical solution and numerical solution contrastive method, reduce the computational difficulty.
在机动边界点的求解上采用解析解和数值解对比的方法，降低了计算难度。
In this paper, by using the fixed point index method, the authors discussed the periodic boundary value problem of first order differential systems.
摘要利用锥上的不动点指数研究了一阶非线性常微分方程组的周期边值问题。
The method to estimate boundary heating flux according to the observation (single point or multipoint), is given with least squares and perturbation methods;
根据单点或多点测温，应用最小二乘及最佳摄动法，确定气动加热面边界热流密度。
In this paper, by using the fixed point index method, the authors discussed the periodic boundary value problem of first order differential systems.
利用锥上的不动点指数研究了一阶非线性常微分方程组的周期边值问题。
By introducing the concept of "nihility point" and the method of "spherule bounding" in the algorithm, we have simply and effectively realized boundary discretization in 3-d space.
这种算法采用“虚点”概念，按照一定的规则用“小球跳跃法”简单而有效地实现了三维场域边界的三角形离散。
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。
In this paper, we present a method for solving a class of singular second order two-point boundary value problems.
讨论了一类二阶奇异两点边值问题的一种求解方法。
Using difference method and collocation point method, this paper studies the bending problem for rectangular thin plates with mixed boundary.
综合应用差分法和配点法，研究了混合边界矩形薄板的弯曲问题。
In this paper, a drawing algorithm of contour lines with inner boundary constraints is obtained by the inner boundary curves of contour lines generated by using four-point method.
利用四点格式生成等值线图的内边界曲线，给出了带内边界约束条件的等值线图的绘制算法。
Solving the thin plates on Winkler's foundation by the nonsingular boundary element method and the layerwise summation method, the deflection of the given point of the plate can be obtained.
本文以无奇点边界元法分析地基厚板，而用分层总和法计算地基沉降，并将两者联系起来，即利用边界元法解出的厚板下的地基反力作为分层总和法的外力，从而求出地基的沉降。
This paper is to discuss the derivative of fragmental function on the boundary point, and to put forward the new method to this type of questions.
对分段函数分界点处的求导进行了讨论，对分段函数在分界点处求导的方法进行了改进。
The point source model is used to deduce the boundary condition, and SIMPLE method is used to do the calculation.
边界条件用点源模型推导，同时采用SIMPLE算法进行计算。
The point source model is used to deduce the boundary condition, and SIMPLE method is used to do the calculation.
边界条件用点源模型推导，同时采用SIMPLE算法进行计算。
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