This dissertation verifies the applicability of the upper limit theorem and the lower limit theorem in the classical plastic limit analysis theory , and gives correspondingly constrained conditions 从理论上论证了经典的塑性极限分析理论中的上、下限定理对散体材料的适用性，并给出了相应的限制条件。
The constrained conditions are unproved using the tighter convex hull property of the control points degree elevated or subdivided , so the results of this method are better than those of literature [ 33 ] 最后应用bezier方法的升阶和细分技术获得更紧的控制网格凸包，改进优化模型的约束条件，获得更好的降阶逼近。
The conclusion that a set of extremum questions can not be solved by lagrange - multiplication is explained through analysising the extremum questions under linear target functions and linear constrained conditions 摘要通过对线性的目标函数在线性的约束条件下的极值问题的分析，得到这类极值问题一般是不能用拉格朗日乘数法求解。
In the last through the dynamic experiment , verifying the result and experiment has the good concordance . the process instruct the model , the constrain condition and load condition is correct 最后通过动态特性实验验证了实验结果和计算结果具有很好的吻合性,说明在分析过程中,有限元模型的建立,边界和载荷条件的处理是正确的。
This algorithm uses the quotient as the fitness of each individual and employs pseudo - relaxation method to adjust individual solution when it does not satisfy constraining condition any more after genetic operation 这种方法应用遗传算法和准松弛方法来得到bam的可行解，以mav和连接权方差之商为个体适应度函数，并应用准松弛方法来调整不满足约束条件的个体。
The locomotor hypotheses about the kinematics of undulatory swimming are experimentally tested , while the parameters describing wave form are discussed with respect to some constrained conditions that must be satisfied during undulatory swimming 随后定义了表征形态和运动特征的参数化运动描述,结合方程中参数的物理含义,讨论可能存在的约束以及参数的一些典型性质。
Unlike previous methods that can only represent the interface between two fluids usually between liquid and gas , this method can handle an arbitrary number of fluids through multiple independent level sets coupled with a constrain condition 与前人方法只能描述两个流体之间的界面通常是液体与气体之间的界面不同的是，我们的方法可以通过多个独立的level set结合一个约束条件，处理任意多数目的流体。
The research objective of the paper is to propose solutions to traffic engineering over mpls and traditional ip . the aims are to maximize the utilization of network resources , or to reach the objectives of optimal distribution traffic in constraining conditions 本文的研究目标是提出一系列基于mpls以及传统ip上流量工程的解决方案，这些方案的目标就是最大化地提高网络资源的利用率，或者是满足某些特定的条件约束下流量的最优负载平衡。
Secondly , the initial structure parameters of the f - theta lens are obtained with p - w method . and then a few of optimal f - theta lenses with different working area and required optical performances are gained with zemax optical design software under practical constrained conditions 结合实际使用时的具体要求,如工作面为平面、工作面上照度须均匀分布等,利用zemax光学设计软件,建立合理的品质函数,优化设计得到多种不同工作面积的f - theta镜头。
Relative key concept and technique of this method was described in detail in this paper , such as the decomposition of balance matrix , the modes of self - stress , the modes of inextensional mechanisms , the analysis model of optimization under linear constrained condition , the integration of constrained matrix 文中对桁架理论的奇异值分解法、自应力模态、机构位移模态、有约束线性优化数学模型、约束矩阵集成等关键概念和技术进行了详细的推导说明。
