Comparison of theoretical structural models with experiment for a high-aspect-ratio aeroelastic wing

被引：0

作者：

Jaworski, Justin W. ^{[1
,2
]}

Dowell, Earl H. ^{[1
,2
]}

机构：

[1] Duke University, Durham, NC 27708, United States

[2] Department of Mechanical Engineering and Materials Science

来源：

Journal of Aircraft | 2009年 / 46卷 / 02期

关键词：

The effects of the geometrical nonlinearities on the four lowest natural frequencies of a cantilevered high-altitude long-endurance (HALE)-type wings are studied. The total spar length; maximum width; thickness; step distribution; and step width are held constant; while the step width is varied. A computational structural analysis is performed for a high-aspect-ratio; experimental aeroealstic wing model using the commercial finite element program ANSYS. The computational results quantify the effects of spanwise nonuniformities such as ribs; fairings; and a tip store on the first four wing modes. The mode shapes of the nonuniform finite element wing model are well approximated by classical beam modes; which are assumed as trial functions for nonlinear aeroelastic analysis of slender wings. The agreement between computational and experimental results support the use of ANSYS as a design tool for aeroelastic analysis of HALE-type wings;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Journal article (JA)

引用

页码：708 / 713