Damage sensitivity of a wing-type leading edge structure impacted by a bird

作     者：Jun LIU Chunyang ZHANG Bopeng JUAN Zhenhua LI Chao ZHANG Yulong LI Jun LIU;Chunyang ZHANG;Bopeng JUAN;Zhenhua LI;Chao ZHANG;Yulong LI

作者机构：School of AeronauticsNorthwestern Polytechnical UniversityXi’an 710072China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2023年第36卷第5期

页      面：328-343页

核心收录：

学科分类：08[工学] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the Civil Aviation Security Capacity Building Fund the Civil Aircraft 13th Five Year Pre-Research Project,China (No. MJ-2018-F-18) 

主　　题：Bird impact Damage sensitivity FEM SPH Wing-type leading edge 

摘      要：On the windward side of an aircraft,the components with higher probability of impact with birds are the wing-type leading edge structures,such as the wing and tail.A study on the damage sensitivity of a wing-type leading edge structure under bird strikes was presented in this ***,a bird strike test was carried out on a *** principles of the bird strike test equipment and method were introduced in detail,including the bird strike test system,bird projectile production process and data acquisition *** dynamic strain measurement results,the high-speed camera videos,and the final deformation and damage morphology observations of the structure were *** on the coupled Smooth Particle Hydrodynamics(SPH)-Finite Element Method(FEM),the commercial software PAM-CRASH was used to simulate the process of a bird strike with the *** good agreement between the finite element simulation results and the experimental results shows that the calculation method and the numerical model presented in this paper were *** this basis,wing-type leading edge structures can be designed by adding triangular *** bird strike resistances of an original structure and improved structure were studied by numerical *** calculated results show that the improved wing-type leading edge structure is less damaged than the original structure under bird *** improved leading edge structure satisfied the anti-bird strike airworthiness requirements,as the thickness of the triangular support was 1.2 mm,and the weight of the structure was reduced by 0.87 kg compared with the original *** indicated that the bird strike resistance of the improved structure is better than that of the original structure,and the improved design of the wing-type leading edge structure presented in this paper is reasonable.