Rigid-flexible coupling modeling analysis method for unmanned aerial vehicle with high aspect ratio

• Main Authors: KAN ZI, YAO ZHUO'ER, JIANG YUN, LI DAOCHUN, WANG YONGZHI, SHAO HAOYUAN
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention belongs to the technical field of aircraft flight dynamics, and discloses a rigid-flexible coupling modeling analysis method for a high-aspect-ratio unmanned aerial vehicle, which comprises the following steps: (1) defining a rigid-flexible coupling dynamics modeling coordinate system of the high-aspect-ratio unmanned aerial vehicle; (2) establishing a high aspect ratio unmanned aerial vehicle structure model; (3) establishing a rear fuselage and horizontal tail structure model, introducing a bifurcated beam structure model arranged by a multi-beam connection structure, and establishing a discontinuous factor equation of discontinuous factors; (4) establishing a pneumatic model of the unmanned aerial vehicle with a high aspect ratio; (5) establishing a rigid-flexible coupling flight dynamics model of the unmanned aerial vehicle with the high aspect ratio to obtain a rigid-flexible coupling dynamics equation set; and (6) solving the rigid-flexible coupling dynamics equation set, and analyzing aer