查询词典 constrained optimization

With simple coordination relations method, multi-objectives optimization design of V-belt transmission wheel series was transmitted to a single-objective optimization design.

用简便的协调关系法将V带传动轮系的多目标优化设计问题转换成一个单目标优化设计问题。

An optimization design example of sleeve roller chain transmission was given ,and it show that the optimization result accords with practical production.

开发了混合离散变量优化的改进遗传算法程序，给出了套筒滚子链传动的混合离散变量优化设计的实例，所得优化参数符合实际生产的要求。

The application of genetic algorithm in optimization design of structures with discrete variables is presented with an example of optimization design for three-bar hyper static truss structures with discrete variables.

以三杆桁架结构优化设计演示了遗传算法在离散变量优化设计中的应用。

The optimization results are validated through the model towing tests carried out in ship model towing tank of Shanghai Jiao Tong University. It demonstrates the feasibility and effectiveness of the presented"Automatic Optimization"platform

经过模型拖曳试验结果验证，证明了该种&自动优化&方法的可行性与有效性，为今后的船舶线型&自动优化&平台建设打下了基础。

It can predict the yields of FCC accurately according to the operating condition. When it is applied in simulation and optimization of practical unit, adjusting of the model can be done automatically and continually according to the practical data of unit. Accordingly, it can dynamically tail after the practical unit, and realize the real-time optimization of unit preferably.

利用它不仅能够根据反应条件较准确地预测产品的产率；当其用于装置的模拟优化控制中时，还可以不断地根据装置的实际数据对模型进行校正，从而动态地跟踪模拟实际装置，较好地实现装置的实时优化控制。

Finite Element Shape Optimization of a Steering Knuckle For a Heavy Truck-A Case Study ABSTRACT A case study of the application of shape optimization techniques to reduce the weight of a steering knuckle of a heavy truck suspension has been presented.

转向关节的有限元素形状优化为一个重的卡车专题研究摘要提出了形状减少重型卡车悬浮的转向关节的重量的优化技术的应用的专题研究。

Firstly, this paper discusses the development actuality of the research on double-front axle steering system and power-train of automobile. Based on the structure of the design experiences from others, the kinematics formula of double-front axle steering system is fetched, and the mathematical model of optimization design of double rocking arms mechanism and steering trapezium mechanism is established by space geometry method. Considering the difference between the real steering angle from wheels and the ideal steering angle from the ideal formula as the objective function, the optimization design method of double-front axle steering system is presented.

本文首先论述了国内外对汽车双前桥转向系统和动力传动系统研究的发展状况，在总结前人研究设计经验的基础上推导出汽车双前桥转向系统运动学关系，运用空间几何法建立了双前桥双摇臂机构及转向梯形机构优化的数学模型，以转向轮实际转角值与理想公式求出的理想转角值之间的误差达到最小为目标函数，提出了双前桥转向系统参数的优化设计方法。

For improving the maneuver stability,safety and decreasing the tire wear,the combination of the optimization software,modefrontier and msc.adams,is applied to design the steering mechanism,with bottom angle of steering trapezoid,arm length,kingpins distance and axles distance as design parameters,transmit angle as constraint,minimum error between theoretical and practical steering angle as objective function,and simulated annealing as the optimization algorithm.

为了提高汽车操纵稳定性、安全性及减少轮胎磨损，将数值优化软件modefrontier同机械动力学仿真分析软件m sc.adam s集成，以转向梯形底角、转向臂长度、主销中心距和轴距为设计参数，传动角为约束，以转向时内轮实际转角与理论转角的误差最小为目标函数，采用模拟退火算法对转向机构进行最优化设计。

In order to make the right evaluation of the state which is the consumption consume of the steam line system, we make an test of the heat loss of the steam line network. And we also probe into the heat loss of the steam line system and the factors. In order to solve the heat inefficency of the steam line system, we look into the present situation of the steam line network and the state of heat preservation. Then we found the open questions and the weak points of heat preservation. We make the evaluation and affirm the reason of the heat inefficency of the system. We adopted the combination of bench test and engineering optimization, then we screened out high-quality adiabator, and designed the best heating composition. We designed and developed the software"The analysis and optimization of energy of the steam line system in thermal production" It can offer convenience to the computational analysis of heat loss of the steam line system. It can also be used for design calculation and experimental verification of steam pipeline feasible radial-radius, so it can offer technical support for the reduce of heat loss of the system, the raise of well head steam quality and the raise of heat efficicency of the steam injection system.

为了对输汽系统的用能状况作出正确的分析评价，对输汽管线热损失进行了测试计算，对输汽系统热量损失及影响因素进行了探讨；为了解决输汽系统热效率低的问题，从输汽管网现状及管道保温状况调查入手，掌握存在的问题和保温薄弱环节，做出分析评价，确认导致系统热效率低的原因，采用室内试验与工程优化相结合的办法，筛选出优质保温材料，设计最优保温结构，同时设计开发了&热采输汽系统能量分析及优化软件&，为输汽系统热量损失计算分析和保温结构优化提供了方便，还对输汽管线合理辐射半径进行了设计计算及实验验证，从而为降低系统的热能损失，提高井口蒸汽干度，提高注汽系统的热效率提供了技术支持。

Stage star gear train ; Matlab ; optimization design ; complex mode optimization

两级星型齿轮传动； Matlab ；优化设计；分级优化

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。