摘要
为了研究航空发动机鸟撞问题,提高航空飞行器的安全性,提出了一个基于数字孪生和有限元分析的航空发动机风扇叶片的DTFE(Digital Twin and Finite Element)鸟撞模型。基于该模型提出了DF(Digital and Finite)算法,建立了航空发动机风扇叶片的鸟撞数值分析模型并进行了仿真验证,通过误差分析进行了验证。模拟仿真了鸟体以3种不同速度撞击某型航空发动机风扇叶片的情况,得到不同撞击速度对撞击结果的影响。对撞击结果进行误差分析,结果显示仿真误差为8.4%~9.8%,验证了模型的有效性。
In order to study the bird impact of aeroengine and improve the safety of aircraft,amodel named DTFE(Digital Twin and Finite Element)for bird impact of aeroengine fan blades based on digital twin and finite element analysis was proposed in this paper.Based on this model,DF(Digital and Finite)algorithm was presented.Firstly,the bird impact numerical analysis model of aeroengine fan blade was established,and then the simulation experimentwas carried out.Finally,the error analysis was used to verify the effectiveness of the model.In this paper,the bird impact of aeroengine fan blades at three different speeds was simulated,and the influence of different impact velocity on the result was obtained.Finally,the error analysis result showed that the simulation error is 8.4%~9.8%,so the model is effective.
作者
潘春露
刘君强
胡东斌
左洪福
PAN Chun-lu;LIU Jun-qiang;HU Dong-bin;ZUO Hong-fu(College of Civil Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《航空计算技术》
2020年第6期52-56,共5页
Aeronautical Computing Technique
基金
国家自然科学基金与民航基金联合项目资助(U1533128)
南京航空航天大学研究生创新基地(实验室)开放基金项目资助(kfjj20190716)。
关键词
发动机叶片
鸟撞
数字孪生
有限元
engine blade
bird strike
digital twin
finite element
