Application and Development Prospect of Digital Twin Technology in Aerospace

The digital twin can be seen as the link between the physical and digital worlds, and has received widespread attention both at home and abroad. By establishing an accurate digital model of the physical entity and the communication relationship between the physical entity and the model, the digital model and the physical entity can be mapped in both directions, so that the twin model can be modified continuously using the data of the physical entity. The twin model, after diagnosing, predicting and evaluating, can output the simulation results to the controller for state control of the physical entity, thus achieving consistency between the twin and the physical entity. This paper first analyzes the relationship between the basic concepts of the digital twin. It then introduces the necessity of digital twin in aerospace applications, focusing on the existing applications of the digital twin in the aerospace field. Compared with traditional modelling simulations, the digital twin has the advantages of shorting design cycle, high reliability, less frequent overhaul and low maintenance cost. Finally, the outlook for the future development of the digital twin is discussed, focusing on the current situation of digital twin applications in aerospace.