代理模型在结构动力学优化设计中的应用研究

在结构动力学优化设计中,使用代理模型是提高计算效率的主要方法。研究实现了代理模型中常用的几种近似方法,以典型函数算例和结构动力学优化为例,建立了对应的代理模型,并就不同代理模型精度进行了对比。研究表明,一些代理模型具有更高的精度和更广泛的适用性,并针对结构动力学优化中的问题,给出选用代理模型的一些建议。

A Study of Meta-model in Structural Dynamics Optimization Design

In structural dynamics optimization design,the main method to improve computational efficiency is using Meta-model. Some common approximate methods of Meta-model were briefly discussed. On the numerical function and structural dynamics optimization design examples, corresponding Meta-models were constructed and the modeling accuracy with deterministic simulation of different approximate methods was compared. Researches show that,in different problems, higher accuracy and more extensive applicability can be achieved by using some of these Meta-models. Aiming at problems in structural dynamic optimization,some suggestions on choosing approximate method of Meta-model are given.