本文中，利用目标函数或约束条件的几何性质，提供了某些多元函数极值或最值问题的几何解法。
In the paper, it provides the geometrical solution to extreme value of many variables function by geometric properties of objective function or constraint condition.
本文提出了以功率消耗为目标函数、犁面几何参数的可行范围为约束条件的犁面优化设计方法。
This paper proposes an optimal method for plow bottom moldboard design by taking the power consumption of the objective and the feasible region of the geometric parameters for boundary constraints.
基于支承法兰盘的结构特征，通过目标函数的建立、设计变量的选取以及约束条件的确定建立了优化设计的有限元模型，并对法兰盘进行了静力分析。
Based on the structural characteristics of bearing flange, the optimization model is established according to the objective function, design variables and constraints, and make a static analysis.
本文对离心式及轴流式通风机采用不同的目标函数、设计变量、约束条件和优化方法进行优化设计。
Centrifugal and axil ventilating fans are optimized by using different objective functions, different variables of design, different constraint forced conditions, different methods of optimization.
解决约束优化问题的关键是如何平衡来自目标函数最优化与满足约束条件这两方面的压力。
It is a key to how to balance the pressure from between the optimization of objective function and the satisfaction of constraints.
并讨论了双公用齿轮机构优化设计的目标函数和约束条件。
Then in this paper the object functions -and restrained conditions for optimum design are discussed.
用户可以通过人机界面的交互功能确定设计变量、约束条件及目标函数三要素，实现了优化模型建立的柔性。
The users can define design variable, constraints condition and objective function by the alternative function of computer interface, by which the optimization module can be set up expediently.
用优化设计方法进行滚珠丝杠传动的设计，对设计的目标函数及约束条件进行了分析讨论。
An optimization method has been used in the design of teh ball screw drive. The objective function and constraint conditions are discussed.
论述了钻机最优化设计研究中的某些问题，探讨了钻机优化设计中的目标函数、约束条件和求解方法。
In this article, the authors present the research on the object functions, subject conditions and resolve methods in the optimal methods of borer design.
在数学模型中避免了对经济、社会及生态效益的计算，采用了能间接反映三种效益而又较为简单的目标函数及约束条件。
In the models the calculation on economical, social and ecological benefits is avoided, accepting the simpler goal function and limitation conditions that could reflect the three benefits indirectly.
线性规划是一种单目标规划，根据有关的约束条件得出目标函数的最大值或最小值。
Linear programming is a single goal programming method, the goal function get the maximum or minimum on the basis of limit condition.
这个方程式应该明确的定义决策变量、约束条件和目标函数。
The mathematical formulations should clearly define the decision variables, the constraints, and the objective function.
随着电力市场的兴起，机组优化组合问题的目标函数和约束条件都发生了重大的变化。
With the rise of Power Market, great changes have taken place in the Unit Commitment problem's objective function and constraints.
多泵站多热站决定了输油管道优化运行的目标函数和约束条件的复杂性。
Multi-pump station and multi-heat station make the objective function and constrains of oil pipeline more complicated.
最后在满足稳定性准则约束条件和最大化目标函数——转向路感的基础上，建立了电动助力转向系统参数的优化设计模型，并给出了算例。
Finally, based on the restrictions of stability criterion and maximize the object function of steering feel, an optimization model of EPAS system was built and an example was presented.
建立了PC C桩复合地基优化设计的目标控制函数和两个约束条件：沉降控制条件和承载力校核条件。
The governing object function and two boundary condition: settlement and foundation bearing capacity are developed in the optimization design of the PCC pile composite foundation.
在实际生活中，模糊目标函数和约束条件往往是非线性的。
In real life, fuzzy objective functions and constrains are always nonlinear.
该数学表达式表现为一个具有非线性目标函数及线性与非线性约束条件的大规模0 - 1规划问题。
This formulation results in a large scale 0-1 programming problem with nonlinear objective function and linear or nonlinear constraints.
根据混凝土面板堆石坝结构设计问题中目标函数和约束条件所具有的不确定性性质，阐述了结构模糊随机优化设计的理论和方法。
According to the uncertainty feature of the objective function and the constraint conditions, the theory and method of structure fuzzy random optimization design are introduced.
在表达了目标函数和约束条件的式子以后，建立了确定剪力墙最优数量的数学模型。
The mathematical model for determining the optimal quantity of shear wall is thus established since the objective function and constraint conditions are formulated.
考虑当目标函数在约束条件下的最优值作扰动时，使各约束作极小扰动的非线性规划问题。
The nonlinear programming problem that the constraint perturbation attains minimum under the condition when the objective function makes its optimal perturbation is considered.
本论文建立了水电机组最优检修间隔模型，以机组在寿命期内的收益最大为目标函数，考虑了电力市场的经济因素和水电机组的约束条件。
The paper set up a model of hydro unit maintenance , whose object is the max income in the life period of unit, considering the economic factors of the power market and restrictions of hydro units.
文中通过对拍门运动的系统分析，建立了带有约束条件和目标函数的数学模型。
Based on a systematic analysis of the movement of the flap valve, a mathematical model with constraint conditions and objective functions is established.
以闭环二阶控制器为例，推导了优化设计的目标函数，探讨了约束条件的确定和优化方法的选择。
The deduction of objective function, the decision of restriction and the chosing of optimizing method are specially discussed with the example of second order feedback controller.
该模型的目标函数是变量可分离二次函数，而约束条件是线性的。
The objective function of the model is a quadratic function with separable in the variables, and the constraints are linear.
当线性规划约束条件的右端向量在一定范围内变化时，目标函数的最优值是右端向量的一个复杂的分片线性函数，但通常难以给出分析表达式。
The optimal objective value is a complicated piecewise linear function of the right-hand-side vector of the constraints, and its analytical expression is normally hard to obtain.
当线性规划约束条件的右端向量在一定范围内变化时，目标函数的最优值是右端向量的一个复杂的分片线性函数，但通常难以给出分析表达式。
The optimal objective value is a complicated piecewise linear function of the right-hand-side vector of the constraints, and its analytical expression is normally hard to obtain.
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