Digital definition method of aircraft test process based on MBD

Aircraft test can simulate the flight environment to verify whether the aircraft functions meet the requirements and the performance is accurate. In recent years, the aircraft assembly process has gradually turned into three-dimensional design, while aircraft test is still limited to the description of test tasks and process execution in the form of documents. Based on the Model Based Definition (MBD), the top-level design of aircraft test is studied, and the concept of test process design and the digital definition method of test process model are proposed. The whole process of aircraft test is divided into four stages, completing process model definition from test design to test results and achieving partial engineering verification. The results show that the MBD-based digital definition result can be used as the only data source to realize the unified expression and information transmission of aircraft test. © 2021, Editorial Board of JBUAA. All right reserved.