航空工程进展2024，Vol.15Issue(2)：117-124,141,9.DOI:10.16615/j.cnki.1674-8190.2024.02.13
发动机一级转子抗鸟撞试验与数值模拟研究
Experiment and numerical simulation on bird strike with blades of an engine primary compressor
摘要
Abstract
Bird striking engines are most likely to cause aircraft damage and accidents in bird strike accidents.In or-der to study the bird strike airworthiness performance of the first stage compressor rotor of the engine,bird strike tests are conducted on the engine rotor under working conditions.The bird strike test,in which the bird weight,ve-locity and rotate speed of engine blades are 1 000 g,195 m/s,8 525 r/min respectively,is made in a vacuum space.Based on the explicit collision dynamics analysis software PAM-CRASH,a corresponding blade bird strike numerical calculation model is established,and the rationality of the calculation model in this paper is verified by comparing it with experimental results.Also,the ability of engine blades against bird strike in different situations is researched.The results indicate that big bird strike leads to a worse situation compared with medium bird flock and small bird lock.Large deformation appears at the tip of the blades due to the impact at the tip part,while impact at the root and middle of the blades will cause a large concentrated stress around the root of blades,and lead to the fracture of the blade.关键词
发动机叶片/鸟撞试验/PAM-CRASH软件/数值模拟/适航Key words
engine blades/bird strike test/PAM-CRASH software/numerical simulation/airworthiness分类
航空航天引用本文复制引用
王斌,宁宇,刘军,汤忠斌,黄福增,党蒲妮..发动机一级转子抗鸟撞试验与数值模拟研究[J].航空工程进展,2024,15(2):117-124,141,9.基金项目
国家科技重大专项(J2019-Ⅷ-0008-0169) （J2019-Ⅷ-0008-0169）
