The elastic stress field for lower bound limit analysis was computed directly by three_dimensional boundary element method (3_D BEM).
基于极限分析的下限定理,建立了用常规边界元方法进行三维理想弹塑性结构极限分析的求解算法· 下限分析所需的弹性应力场可直接由边界元方法求得· 所需的自平衡应力场由一组带有待定系数的自平衡应力场基矢量的线性组合进行模拟,这些自平衡应力场基矢量由边界元弹塑性迭代计算得到· 下限分析问题最终被归结为一系列未知变量较少的非线性数学规划子问题并通过复合形法进行求解· 给出的计算结果表明该算法有较高的精度和计算效率·
A Necessary and Sufficient Condition for Riemannian Integrability of the Limit Funtion of a Sequence of Riemann Integrable Functions
黎曼可积函数序列的极限函数为黎曼可积的充要条件——黎曼积分号下取极限的充要条件
GENERALIZED INTEGRAL:DEFINITE INTEGRAL’S NATURAL EXTENSION IN THEORY OF LIMITS;
广义积分:定积分在极限思想下的自然延伸
II) Limit --- Reasonability of Infinitesimal Calculus.
（二）极限----微积分的合理性.
Discussion on the Pedagogy of Concept of Limit,Definite Integral and Double Integral;
极限、定积分、二重积分概念教法之探讨
Proving of Limit for a Wide n Multiple Integral with the Khintchine Theorem;
辛钦定理证明一类广泛的重积分极限
Thoughts on "Limit" Concepts in Calculus Teaching;
对微积分“极限”思想方法教学的思考
Solve a Special Type of Extreme Limit by Integral Calculus Method;
用积分法求解某一类特殊的和式极限
Almost Sure Central Limit Theorem for the Product of Partial Sums
部分和乘积的几乎处处中心极限定理
Some Properties of Limit for Poisson Integral in the Upper Half-Space
上半空间Poisson积分的一些极限性质
In the present chaotic situation we can lead the masses only by positive slogans and a positive attitude.
在大混乱的现局之下，只有积极的口号积极的态度才能领导群众。
Limit Analysis on Ultimate Bearing Capacity of Soils under Caps of Composite Pile Foundations;
复合桩基承台下地基土极限承载力的极限分析
the branch of mathematics that is concerned with limits and with the differentiation and integration of functions.
讨论函数的极限,微分与积分的数学分支。
Applied the Functional Sequence’s Limit Theorem and the Repeated Limit Theorem to the Exchange Order Theorem of Repeated Integral
应用函数列的极限理论和累次极限对累次积分换序的处理
a branch of mathematics involving calculus and the theory of limits; sequences and series and integration and differentiation.
包括微积分和极限定理的数学分支:序列级数微分,与积分。
A Sufficient Convertible Condition of Function Limit & Integral;
函数极限与积分可交换的一个充分条件
Combined with the complexity of 3D FEM analysis of seepage field of underground project, the simulation of faultage was comprehensively discussed.
结合地下工程渗流场三维有限元分析复杂性的实际，对断层的处理进行积极探讨。
Limit Load and J-integral of Embedded Elliptical Cracks in Plates under Combined Tension and Bending
含椭圆形埋藏裂纹平板在拉弯组合作用下的极限载荷和J积分研究
A Solution of the Limit of n-lay Integrations by Means of a Probability Method;
用概率方法求解一类特别的n重积分的极限