基于分布／并行计算框架求解多学科设计优化问题

计算框架是多学科设计优化研究的重要问题之一。首先，针对一种基于代理模型的二级优化方法，提出三种不同的分布／并行策略，并对这三种策略的优缺点进行分析。然后，选择其中一种分布／并行策略，以构造代理模型的过程为例，阐述该策略的实现过程。最后，以一个飞翼布局飞行器多学科设计优化问题为算例，在iSIGHT-FD／FIPERACS平台上建立一个分布／并行的多学科设计优化计算框架。应用算例表明，建立的分布／并行计算框架可以明显缩短多学科设计优化问题的求解时间。

A Distributed/Parallel Computing Framework for Multidisciplinary Design Optimization

Computing framework is one of the important issues for muhidisciplinary design optimization （MDO）. Three different distributed/parallel strategies are proposed for the method of the surrogate- based two- level optimization. The advantages and disadvantages of each distributed/parallel strategies are presented. The construction of surrogate model was used to illustrated the detail steps of the solution strategy implementation. The MDO for a flying- wing configuration is employed to construct a distributed/parallel computing framework on iSIGHT- FD/FIPER ACS platform. The results indicate that the computing framework can substantially shorten time of solving MDO problem.