essential boundary condition造句
例句与造句
- Enforce essential boundary conditions using lagrange multipliers
用拉氏乘子加强本征边界条件。 - Essential boundary condition
本质边界条件 - The modified collocation method was applied to satisfy the essential boundary conditions
采用修正配点法，以满足其本质边界条件。 - This is of disadvantage in efgm for it complicates the imposition of essential boundary conditions and the application of point loads
因此，本质边界条件的施加和集中载荷的处理变的复杂。 - The interpolation function has the delta function property , so the essential boundary conditions can be simply imposed
由于插值函数具有delta函数特点，因此可以很方便地施加本质边界条件。 - It's difficult to find essential boundary condition in a sentence. 用essential boundary condition造句挺难的
- This is a disadvantage of efgm as it suffers from problems in the imposition of essential boundary conditions and the application of point loads . however , these do not disadvantage efgm significantly
由于移动最小二乘法的近似函数不一定精确地通过计算点，从而使本质边界条件的施加和集中载荷的处理变得复杂。 - A series of examples illustrates the excellent performance of the techniques . in addition , two difficulties in efg , treating essential boundary conditions and approximations near nonconvex boundaries , are discussed
另外，本文还讨论了无单元法中的两个难点：边界条件的引入以及非凸边界的处理，较好的解决了这两个问题。 - Points interpolation method ( pim ) which is a new meshless method reduces the complexities in calculating the shape function of other meshless methods , and the hardness in dealing with the essential boundary conditions etc
摘要点插值法是一种新型的无网格法，它改善了其他无网格方法中形函数计算复杂、本质边界条件处理困难等问题。 - With the method , all integrals can be easily fulfilled on regular sub - domain boundaries , and to impose the essential boundary conditions , a penalty parameter can be used so that a positive definite and symmetric stiffness matrix may be obtained
计算中，积分都在规则形状边界子域上完成，因而容易实现；通过罚因子添加本质边界条件，从而使得到的刚度矩阵是正定对称矩阵。 - In fegm , the shape function is constructed by the moving least square ( mls ) approximation , the weak form of the equivalent integral equation to the governing equation is employed and essential boundary conditions are imposed by the penalty function method
它采用移动最小二乘法构造形函数，利用能量泛函的弱变分形式的积分方程，并用罚函数法施加本质边界条件，从而得到积分方程的数值解。 - Some numerical examples are carried out by using the efg method . the imposition of essential boundary conditions by lagrange multipliers is imperative . the rate of convergence when changing the data of weight function and how to select the data are shown
编制了相应程序，通过算例表明了拉格朗日乘子对强制边界条件的作用及无网格伽辽金方法在权函数参数变化时的收敛特性，论证了无网格伽辽金-有限元耦合的有效性。 - However , because the meshless methods are relatively new , there exist the following technical problems : 1 . complexity in algorithms for computing the interpolation functions ; 2 . difficulties in the implementation of essential boundary conditions ; 3
本学位论文针对目前无单元发展中存在的主要技术问题：形函数计算；本质边界条件实现；影响域大小(包含其中的点数)的确定；辅助积分网格等问题进行了研究。 - In efgm , in order to get a numerical solution for a partial differential equation , the shape function is constructed by moving least squares ( mls ) , the control equation is derived from the weak form of variational equation and essential boundary conditions are imposed by penalty function method
它采用移动最小二乘法构造形函数，从能量泛函的弱变分形式中得到控制方程，并用罚函数法施加本质边界条件，从而得到偏微分方程的数值解。 - Lbie , based on the local boundary equation , adopts the traditional moving least squares ( mls ) approximation which depends on only the values of the nodes in the domain of the problem or along its boundary . the whole process of integration is carried on over a local domain or its local boundary centered at the node in question . the local boundary equation can be rewritten to represent the values of the unknown function at the point of interest , and the essential boundary conditions can be directly and easily enforced by using the green formula and the characters of the dirac function
它以局部边界积分方程为基础，采用移动最小二乘近似函数，从而只需要分布在问题域内及其边界上的节点的信息值，无需划分单元；整个积分是在以节点为中心的局部域及其边界上实现，所以不需要背景积分网格；借助于格林公式及dirac函数的性质，将局部边界积分方程转化为所考虑点的未知函数的边界积分表达式，便于直接施加本质边界条件。