isight9.0的elp翻译.doc

OPTIMIZATION 优化 1.Introduction 简介 This chapter describes in detail the optimization techniques that iSIGHT uses, and how they can be combined to conform to various optimization strategies. After you have chosen the optimization techniques that will best suit your needs, proceed to the Optimization chapter of the iSIGHT User’s Guide. This book provides instructions on creating or modifying optimization plans. If you are a new user, it is recommended that you understand the basics of optimization plans and techniques before working with the advanced features. Also covered in the iSIGHT User’s Guide are the various ways to control your optimization plan (e.g., executing tasks, stopping one task, stopping all tasks). 本章详细介绍了isght中使用的优化技术，以及它们怎样遵照各种优化策略被组合使用。 在你选择了最适合你的优化技术之后，进入isight用户指导中的优化章节。这本书提供了有关创建或修改优化方案的简介。如果您是新用户，建议在你使用高级功能之前，你要先了解的优化方案和技术的基本知识。同样包含在isight用户指导中的有通过不同的方式去控制你的优化方案（例如，执行任务，一个任务的停止，停止所有任务）。 Approximation models can be utilized during the optimization process to decrease processing cost by minimizing the number of exact analyses. Approximation models are defined using the Approximations dialog box, or by loading a description file with predefined models. Approximation models do not have to be initialized if they are used inside an optimization Step. The optimizer will check and initialize the models, if necessary. For additional information on using approximation with optimization, see Chapter 8 “Approximation Techniques”, or refer to the iSIGHT User’s Guide. 近似模型可以被用在优化过程中，通过精确计算的次数减少是的优化过程成本降低。通过近似模型对话框可以定义近似模型，也可以通过预定义模型加载一个描述性的文件进行定义。如果近似模型被用作优化的一个步骤，那么就没有必要进行初始化。如果有需要，优化器就会检查并对模型进行初始化。为了获取更多关于近似优化的信息，请看第八章的近似技术或者参考isight用户指导。 iSIGHT combines the best features of existing exploitive and exploratory optimization techniques to supplement your knowledge about a given design problem. Exploitation is a feature of numerical optimization. It is the immediate focusing of the optimizer on a local region of the parameter space. All runs