Study on damage of aero-engine blades caused by different metal hard materials

被引：0

作者：

Shu C. ^{[1
]}

Cheng M. ^{[1
,2
]}

Xu Y. ^{[3
]}

Liu J. ^{[1
]}

Li P. ^{[4
]}

Wang W. ^{[1
]}

Zhang W. ^{[1
]}

Cheng L. ^{[1
]}

机构：

[1] Aeronautics Engineering College, Air Force Engineering University, Xi'an

[2] 93066 Unit of People's Liberation Army of China, Mudanjiang, 157000, Heilongjiang

[3] 93152 Unit of People's Liberation Army of China, Tonghua, 134000, Jilin

[4] Harbin Flight Academy, People's Liberation Army Air Force, Harbin

来源：

Hangkong Dongli Xuebao/Journal of Aerospace Power | 2020年 / 35卷 / 01期

关键词：

Ballistic impact; Damage appearance; Damage simulation; Dynamic response; Fan blades; Foreign object damage(FOD);

D O I：

10.13224/j.cnki.jasp.2020.01.003

中图分类号：

学科分类号：

摘要：

In order to analyze the characteristics difference of foreign object damage caused by different metal hard materials on the aero-engine fan blades, beads made of steel, copper, aluminum and lead were regarded as foreign objects, the intake edges of real blades were impacted at two angles and different speeds, and the dynamic damage process was simulated by numerical methods.The experiment results showed that when the steel and copper beads impacted, the blade damage morphology could be divided into pits, tears and gaps, when the tearing appearance occurred, the small angle impact required higher speed compared with large angle impact. Furthermore, copper beads impact required higher speed compared with steel beads impact; aluminum beads and lead beads had large deformation when they were impacted, which only caused extrusion deformation of the blade. The simulation results showed that, when the impact energy was 2.2J, there were two significant peaks of contact force in the process of tear damage caused by copper beads and steel beads, accompanied by the phenomenon of "kinetic energy recovery"; more kinetic energy of the copper bead was transformed into the blade and its own strain energy, so its penetration ability to the blade was not as good as that of the steel bead; the aluminum bead had the highest impact force, and the ratio of its kinetic energy to its own strain energy was the highest; the impact force peak of the lead bead was not obvious, and most of its kinetic energy was converted into heat consumed by friction. © 2020, Editorial Department of Journal of Aerospace Power. All right reserved.

引用

页码：18 / 29

页数：11

共 27 条

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