一种分布式电推进飞机的多学科参数快速估计方法OA

Due to the significant overall performance and strong interdisciplinary nature of distributed electric propulsion aircraft,it is a trend in the future development of aircraft in the aviation industry.Therefore,establishing a multidisciplinary parameter evaluation method applicable to the conceptual design phase of distributed electric propulsion aircraft is of great fundamental significance for their design.To improve the efficiency of electric aircraft in the initial design phase,this paper proposes a rapid multidisciplinary parameter estimation method for distributed electric propulsion aircraft.This method involves the overall modeling of distributed electric propulsion aircraft and the establishment of an electric power system framework.It utilizes a simplified aerodynamic analysis method based on potential flow theory to analyze the aerodynamic-propulsive coupling characteristics between the propellers and the wings.Through simulation validation,it is demonstrated that the simplified aerodynamic model can effectively simulate the aerodynamic-propulsive coupling characteristics between the propellers and the wings.Using this method,a rapid multidisciplinary parameter estimation is performed on a specific distributed electric propulsion aircraft under a set flight profile,obtaining the variations in the aircraft's aerodynamic performance and the performance of the electric propulsion system throughout the flight profile,providing support for the conceptual design of distributed electric propulsion aircraft.