Preliminary Idea of Rocket Fault Diagnose Driven by Digital Twin

In recent years, intelligent manufacturing has become the key direction of industrial development in various countries. As an emerging technology, digital twin technology can effectively realize the fusion of physical information. Applying it to the fault diagnosis of rockets can further improve the reliability and success rate of rocket launches. This paper summarizes the domestic and foreign research status of digital twin technology in the aerospace field, analyzes NASA’s two major goals for aircraft digital twins, as well as the emerging development in the domestic aerospace field. Secondly, the research status of fault diagnosis of solid engines, liquid engines and inertial device of rocket is introduced respectively. On the basis of introducing the health management method driven by digital twin, a fault diagnosis method for rocket driven by digital twin is proposed. Its basic composition and the fault diagnosis platform of rocket drivrn by DT are introduced in detail. Then, analyze the key technologies and application difficulties. This method is expected to realize the pre-launch fault diagnosis and post-launch design improvement of the rocket.