Abstract: With the enhancement of the function of the flight control system, the flap actuation system is required to perform more additional functions to improve flight efficiency. Taking the A320 flap actuation system as a reference, the initial flap actuation system matrix model is created based on the function-driven design structure matrix, with which a few modifications are made and new functional elements are introduced. The functional architecture model of the system is obtained using clustering algorithm, and the flap actuation system architecture that meets the multi-functional requirements is developed. On the basis of the initial architecture, the new architecture can realize the independent control and drive of the flap after minor changes. Therefore, the architecture of the flap actuation system can be designed effectively based on the design structure matrix.

Key words: design structure matrix, clustering algorithm, flaps, system architecture