Rapid Prediction of Worst-Case Gust Loads Following Structural Modification

被引：22

作者：

Khodaparast, H. Haddad ^{[1
]}

Cooper, J. E. ^{[2
]}

机构：

[1] Swansea Univ, Coll Engn, Swansea SA2 8PP, W Glam, Wales

[2] Univ Bristol, Dept Aerosp Engn, Bristol BS8 1TR, Avon, England

来源：

AIAA JOURNAL | 2014年 / 52卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

MODAL REANALYSIS METHODS; DESIGN;

D O I：

10.2514/1.J052031

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

An approach to reduce the computational effort required to determine the worst-case gust loads for aircraft is described, specifically when structural modifications are included as part of the design process. The Sherman-Morrison-Woodbury formula is employed to determine the gust response of the modified structure using a reanalysis approach and to undertake an efficient modal reanalysis. The approach is demonstrated successfully using a simple wing and full-scale aircraft finite-element models to determine the worst-case "1 - cosine" gust following structural modification. Savings of about 56% were achieved for gust-response computations and 50% for the modal reanalysis.

引用

页码：242 / 254

页数：13

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