Research on the Construction Method of Airspeed of the Auxiliary Decision Function of the Large Aircraft Abnormal Airspeed

Abstract

Airspeed is a very important flight parameter.The abnormal airspeed of large aircraft may cause serious flight accidents,and it is difficult to completely eliminate the abnormal airspeed fault through ground inspection.Aiming at the problems such as high frequency of airspeed anomalies,multiple fault types,great impact on flight safety,and heavy burden of pilots’disposal after airspeed anomalies,an auxiliary decision-making function for air-speed anomalies of large aircraft is designed in this paper.Under different flight phases and aircraft performance,the residual voting judgment,flight status conformity judgment,airspeed reconstruction algorithm based on wind speed and airspeed reconstruction algorithm based on lift equation are respectively studied and designed.Taking the DaYun large aircraft as an example,the simulation results show that the method is effective.

Keywords

• flight accident
• residual voting judgment
• flight status conformity judgment
• airspeed reconstruction
• lifting equation