Aerodynamic shape optimization of BWB aircraft based on multi-zone collaborative optimization design method

Zheng Hong Gao, Ke Zhao, Chaov Wang

科研成果: 书/报告/会议事项章节会议稿件同行评审

3 引用 (Scopus)

摘要

The aerodynamic shape optimization for a BWB transporter was studied in this paper. The FFD parametric method based on NURBS basis functions was introduced to parameter the configuration. First, the influence of the design variable dimensionality to the precision of the surrogate model was studied. It is shown that as the dimensionality of the design variables increases, the precision of the surrogate model decreases sharply and the number of samples constructing the model quickly increases, referred as the curse of dimensionality. Then the multi-variable refined aerodynamic shape design of BWB (Blended-Wing-Body) transports was carried out based on traditional Loose Surrogate Management Framework optimization method, and a phenomenon of “precision frozen” of surrogate model was detected during the optimization. The Multi-zone Collaborative Optimization Design Method was proposed to overcome “precision frozen”, the optimization result shows that the Multi-zone Collaborative Optimization Design Method is reliable and efficient for the high dimensional problem.

源语言英语
主期刊名33rd AIAA Applied Aerodynamics Conference
出版商American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN(印刷版)9781624103636
DOI
出版状态已出版 - 2015
活动33rd AIAA Applied Aerodynamics Conference, 2015 - Dallas, 美国
期限: 22 6月 201526 6月 2015

出版系列

姓名33rd AIAA Applied Aerodynamics Conference

会议

会议33rd AIAA Applied Aerodynamics Conference, 2015
国家/地区美国
Dallas
时期22/06/1526/06/15

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