Large Angle of Attack Prediction for Tail-Sitter Using ANN-Based Flush Air Data Sensing

Tianchun，L. Y.1; Li，Xiaoda1; Wu，Yongliang2; Shan，Xiaowen1

10.1007/978-981-19-6613-2_648

2023

1876-1100

1876-1119

Lecture Notes in Electrical Engineering

845 LNEE

6722-6731

Flush air data sensing systems (FADS) have been widely applied on aerial vehicles to provide air data estimation. Air data such as angle of attack (AoA) and air speed can be estimated through resolving pressure measurements of the sensor matrix. These parameters can be utilized to improve the performance of flight control system and realize better flight performance. Existing FADS studies and applications can estimate AoA in the range typically below 55 . It is suitable for traditional fixed wing unmanned aerial vehicles (UAVs), but some fixed wing vertical take off and landing (VTOL) UAVs have requirements in measuring air data under larger AoA. In this work, a FADS based on artificial neural network has been applied on a tail-sitter to provided large AoA estimation in low Reynolds number. Computational fluid dynamic analysis has been carried out to evaluate the critical AoA where stall region affects the sensor matrix. Wind tunnel tests have been further carried to collect data for network training. The trained network can provide estimation of large AoA at the range of −80 to 80 with acceptable accuracy.

AoA prediction Distributed pressure sensing Neural networks

第一 ; 通讯

英语

EI

20231413826699

Aircraft control ; Angle of attack indicators ; Antennas ; Computational fluid dynamics ; Fixed wings ; Flight control systems ; Matrix algebra ; Neural networks ; Reynolds number ; VTOL/STOL aircraft ; Wind tunnels

Fluid Flow, General:631.1 ; Aerodynamics, General:651.1 ; Wind Tunnels:651.2 ; Aircraft and Avionics:652 ; Aircraft, General:652.1 ; Aircraft Instruments and Equipment:652.3 ; Computer Applications:723.5 ; Control Systems:731.1 ; Algebra:921.1 ; Mechanics:931.1

2-s2.0-85151130293

Scopus

1.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China

Tianchun，L. Y.,Li，Xiaoda,Wu，Yongliang,et al. Large Angle of Attack Prediction for Tail-Sitter Using ANN-Based Flush Air Data Sensing[C],2023:6722-6731.