优化

A class of bilevel multi-objective programming was converted into the problem of equivalent single-level multi-objective programming. Then a new chaos genetic optimization algorithm was presented by using the inversion property of genetic algorithm and the ergodic property of chaos optimization method and combining with the exact l_1 penalty function.

针对求解一类二层多目标规划问题，首先将其转化为等价的单目标规划问题，然后利用遗传算法优化的反演性和混沌优化方法的遍历性，并结合精确罚函数求解非线性约束优化问题，提出了求解此类问题的混沌遗传算法。

Half penalty method and optimism design of ten connecting bar mechanism of plunger slide in double action drawing press;2. The essential boundary condition is imposed by employing a penalty method .

将选择施加在"虚结构"控制点上的虚载荷作为形状优化的设计变量，并将它与无网格Galerkin法相结合来开展结构形状优化研究，采用罚函数法来施加边界条件，通过直接微分法建立了结构形状优化的离散型灵敏度分析算法，利用无网格法研究了节点坐标关于设计变量导数的计算。

And established the mechanics model,optimization parameter model,optimization mathematics model for the elastic element of the extensometer,programs analysis file and optim...

以应变计式引伸计弹性元件的结构优化为例，建立了引伸计弹性元件的力学模型、优化参数模型、优化数学模型，用ANSYS的参数化设计语言编制了分析文件和优化控制文件，经计算获得最优结果。

The variance of stress about particular points that situate on the edge where maximum stress point locates as the object function, we introduce complex method to optimize the position of exterior load point about pylon along the voyage direction and the angle between anti-swing stop and right-and-left symmetry plane about pylon under the determinate loads. We also compare the unoptimizable stress curves with the optimized to validate the feasibility and correctness of the optimization method.

将挂架上最大内应力点所在棱边的特征点的内应力方差作为目标函数，采用复合形方法对一定载荷状态下，挂架外载荷点沿航向的位置及防摆止动器与挂架左、右对称面间的夹角进行了优化设计，并将优化前、后的内应力曲线进行比较，验证了优化方法的可行性、正确性。

A method to determine the small-signal equivalent circuit of FET's is proposed.

最后讨论了功率放大器、倍频器、混频器等的优化设计的目标函数及梯度的计算，论述了优化方法及提高软件可靠性的方法，给出了功率放大器优化设计算例。

In this paper optimum priciple is used in the design process of feeding mechanism of fleshing machine.

本文把优化原理运用到GJ—150型去肉机供料机构的设计中去，建立了该机构的优化设计的数学模型，并采用SCDD优化方法进行求解，得到了令人满意的结果。

It is demonstrated that selecting flux density as design variable is a better way for core—varied optimization.

提出以优化为主、专家系统为辅的智能型优化设计思想，所附算例表明，这种结合是切实可行的，可以提高优化效果。

The paper describes the optimal design mathe matical model establishing of main parameters and the choice of optimal method about internal gear slotting cutter.

文章论述了直齿内齿轮插齿刀主要参数优化设计数学模型的建立，优化方法的选择，并通过实例计算验证了内插齿刀的主要参数得到优化。

The author researched into a new optimized design of gear-driven in quick-change gear box ,describing a way in detail to solve gear-driven parameter optimization by using optimization toolbox of Matlab.

研究了基于Matlab平台建立车床进给箱换向机构齿轮传动的优化设计模型，描述了利用Matlab优化工具箱解决进给箱齿轮传动参数优化问题的具体方法。

Based on the characteristic of various kinds of vehicle structure components in the vehicle industry, the general flow of structure topology optimization design is elaborated, and the status quo of application, development of the related representative topology optimization software is reported, including data transfer of Finite Element Analysis model, analysis computation, retrieval of optimization model of CAD.

针对车辆工程中不同车型部件结构的特点，阐述了结构拓扑优化设计的一般流程，报告了代表性较强的相关软件应用现状与发展，包括优化过程中有限元分析模型的数据转换？分析计算？CAD优化模型提取？对提高整车零部件刚度？

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。