INTEGRATED AERODYNAMIC-STRUCTURAL DESIGN OF A TRANSPORT WING

被引：25

作者：

GROSSMAN, B

HAFTKA, RT

KAO, PJ

POLEN, DM

RAISROHANI, M

SOBIESZCZANSKISOBIESKI, J

机构：

[1] Virginia Polytechnic Institute and State University, Blacksburg, VA

[2] NASA Langley Research Center, Hampton, VA

来源：

JOURNAL OF AIRCRAFT | 1990年 / 27卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.2514/3.45980

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The integrated aerodynamic-structural design of a subsonic transport wing for minimum weight subject to required range is formulated and solved. The problem requires large computational resources, and two methods are used to alleviate the computational burden. First, a modular sensitivity method that permits the usage of black-box disciplinary software packages is used to reduce the cost of sensitivity derivatives. In particular, it is shown that derivatives of the aeroelastic response and divergence speed can be calculated without the costly computation of derivatives of aerodynamic influence coefficient and structural stiffness matrices. A sequential approximate optimization is used to further reduce computational cost. The optimization procedure is shown to require a relatively small number of analysis and sensitivity calculations.

引用

页码：1050 / 1056

页数：7

共 17 条

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