Design and experimental verification of a wing leading edge structure

被引：0
|
作者：
Ren J. [1 ,2 ]
Wang B. [2 ]
Wang Z. [1 ]
Liu J. [1 ]
Suo T. [1 ]
Li Y. [1 ]
机构：
[1] Department of Aeronautical Structural Engineering, School of Aeronautics, Northwestern Polytechnical University, Xi'an, 710072, Shaanxi
[2] AVIC The First Airplane Institute, Xi'an, 710089, Shaanxi
来源：
Baozha Yu Chongji/Explosion and Shock Waves | 2019年 / 39卷 / 02期
关键词：
Anti-bird strike design; Experimental verification; Front wall structure; Wing leading edge;
D O I：
10.11883/bzycj-2017-0407
中图分类号：
学科分类号：
摘要：
In order to improve the anti-bird strike performance of a wing leading edge to meet the airworthiness requirements, the simulation-test-simulation methodology was adopted for the optimization of the leading edge. Firstly, the anti-bird strike responses of two kinds of the new leading edges, with the triangular plate structure and the front wall structure, respectively, were investigated via finite element simulation. The simulation results show the anti-bird strike performance of the leading edge with the front wall structure is better than those of the leading edges with the original structure and the triangular plate structure. During the bird strike process, the front wall structure can utilize the damaged skin's deformation to absorb energy, thus leading to the improvement of the anti-bird strike performance of the leading edge. The experiment was then carried out to verify not only the accuracy of the numerical simulation method but also the ability of the front wall structure against bird strike. Then, the validated model was used to analyze the influence of the leading edge structural parameters. With the weight reduction of 30%, the optimized wing leading edge structure with the front wall achieved a good performance of anti-bird strike. © 2019, Editorial Staff of EXPLOSION AND SHOCK WAVES. All right reserved.
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