多学科设计优化中常用代理模型的研究

A survey of surrogate models used in MDO

代理模型是多学科设计优化的关键技术之一。本文系统介绍了多项式响应面模型,径向基函数模型和K rig ing模型等3种多学科设计优化中常用的代理模型。通过构造某机翼展向气动载荷分布的代理模型,对这3种模型的效果进行了评估,并对这些代理模型的构造方法、基本特性和适用范围进行了分析研究。

Surrogate model is a key element of the multidisciplinary design optimization （MDO）. Three widely used surrogate models, Polynomial Response Surface Model, Radial Basis Function Model and Kriging Model are reviewed and discussed systematically in this paper. At the end of this paper, three surrogate models are constructed to describe the span lift distribution of an aircraft wing, and the constructions, features and coverage of these models are also discussed and evaluated.