约束优化

Inthis work, by using the boundary element method and the joint theory, thewhole machine structure is equivalently modeled by beam elements and spring elements,the corresponding whole machine static model is constructed and the basic propertyparameters of the unit surface of the joints are introduced. The analysis software of thewhole machine static feature is worked out. The optimal design method based on thegenetic algorithm is proposed with the whole machine structure of multiple variablerestrains the optimal design software is developed as well.

本文运用边界元方法和结合部理论，将机床整结构用梁单元和弹簧单元进行等效，并建立相应的整机静力学模型，引入了结合面基础特性参数；编制了相应的整机静态特性解析软件；然后针对多变量约束的机床整机结构提出了用遗传算法进行优化设计的方法，并且编制了相应的优化计算软件。

The optimal design methods of submergence pump depth and other swabbing parameters were presented.

通过分析有杆泵抽油系统的能耗，以机采系统效率最高为目标，确立了机采系统优化设计的目标函数和约束条件，同时分析泵效对机采系统效率的影响以及影响泵效的因素，给出了沉没度和其他抽汲参数的优化设计方法。

Based on the ICM (independent continuous topological va riables and mapping transformation) method, a unified sm ooth model with weight objective and stress constraints was established for the topology optimization design of continuum structures.

基于独立连续拓扑变量及映射变换的拓扑优化方法应用于连续体结构，建立了统一的以重量为目标、考虑应力约束的连续体结构拓扑优化模型。提出基于综合评价的高效单元删除准则及算法。

So cooperative controlling of driving force of wheel is a key of trafficability on tough lunar terrain.Based on SQP algorithm,driving force of wheel was optimized. Optimization is based on restriction of moving safely and smoothly.The aim of optimization is to minimize power consume of motors and varying range of driving force.

本文基于序列二次规划算法优化摇杆-转向架式月球车车轮系统驱动力输出，建立保证月球车在月壤平稳安全通过的力学约束方程，以车轮驱动功率和驱动力变化最小为目标函数优化车轮驱动力输出，使月球车平稳前进的同时车轮驱动电机功率消耗最小，这对能源有限的月球车来说是很有意义的。

For solving Multi-objective and multi-restriction optimization problem , this paper used non-dominated ranking method, elitist preserve strategy, niche approaches, and presented an individual vector module adaptive function as wash out rule, then an improved Pareto multi-objective optimization with genetic algorithm was found.

为解决含多个目标和多约束的优化问题，本文结合了非支配排序思想、精英保留策略，小生境技术，并对传统的小生境技术中基于个体适应度的淘汰技术进行改进，提出了一种向量模适应度函数来作为淘汰准则，得到一种改进的Pareto遗传多目标优化算法。

Finally a comparison of optimization results between complex method and genetic algorithm is carried out, which shows the value of objective function ha s decreased 6.6% under GA. This will help decrease the slippage of steering whee l and wear extent of tyre. At the same time, it also verifies the feasibility an d superiority of genetic algorithm in solving the nonlinear optimization problem s with many restraints and variables.

计算结果表明：与复合形法相比，遗传算法使目标函数值减少了6.6%，取得了较好的优化效果，从而更有利于减小转向车轮的滑移量和轮胎的磨损量，同时也验证了遗传算法解决多约束、多变量类型优化问题的可行性和优越性。

Optimize the shape of dentiform using CVM as the optimize algorithm. The result were satisfied.

选取约束变尺度法作为优化算法，对斜齿轮进行了齿廓优化，得到了满意的结果。

Fourthly, the thesis presents some variational inequality models when the objective of management optimization is max fand there is no restriction.

第四，论文给出了管理优化目标为max f时的Box约束管理优化模型。

A software based on this model has developed and been used in the design of 5 vapor heaters in the large granulated urea project.

提出了以风侧流阻最小为目标函数，传热负荷与迎风面尺寸为约束条件的双金属翅片管换热器优化设计模型，并开发出了相应的设计软件，成功地进行了在尿素大颗粒工程中五台蒸汽加热器的优化设计。

In the production equipment allocation optimization example, it using the Linear Programming theory combined with production status shows the programming objective, condition and LINDO software analysis result.

在生产设备优化配置的实例中，利用线性规划的原理，结合实际的生产情况，详细分析了规划的目标和约束条件和利用LINDO软件分析的优化结果。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。