Forward Design of Landing Gear Retraction System Based on MBSE

In this paper, according to the forward design process, the MBSE (Model-Based Systems Engineering) method is used to carry out the forward design of the landing gear retraction system. Starting from the aircraft-level task, the scenario of the landing gear retractable function is captured, and the use case diagram and activity diagram of SysML are used to describe the retractable function. The requirements of the retraction system are defined based on the descriptive model, the architecture solution of the landing gear retraction system is proposed based on the requirements. The analytical model and physical model are built to carry out performance analysis. Based on the model, rapid iteration of changes can be achieved, and the rationality of requirements and solutions can be verified in advance, achieving the goal of saving development cycle and cost. The model and data will be further improved in the follow-up, and the detailed design of the landing gear retraction system can be carried out based on the model.