| Citation: | SONG W，WANG Q，HE G Y. Visual calculation method of wing slipstream zone area on tiltrotor aircraft[J]. Journal of Beijing University of Aeronautics and Astronautics，2024，50（8）：2492-2502 （in Chinese） doi: 10.13700/j.bh.1001-5965.2022.0676
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The calculation of the wing slipstream zone area is the key to analyzing aerodynamic interference between rotor and wing on the tiltrotor aircraft. A visual calculation method was proposed for calculating the wing slipstream zone area on the tiltrotor aircraft through aerodynamic and three-dimensional geometric calculations based on CATIA secondary development and parametric design technology. By the proposed method, the wing slipstream zone area could be accurately calculated, and the wing slipstream zone and its dynamic change with various parameters could be directly determined by considering the effects of wing and rotor parameters. According to the results of case calculation and analysis as per the parameters of XV-15 tiltrotor aircraft, the wing parameters including incidence angle, sweep angle, and dihedral angle only have little influence on the wing slipstream zone in both longitudinal and lateral analysis. However, the rotor parameters including the back and side angles of the rotor and the angle of outboard tilt of mast axis have a large influence on the wing slipstream zone area. Therefore, the calculation accuracy can be increased by 18.976% at most through the proposed method of the wing slipstream zone area on the XV-15 tiltrotor aircraft without considering the back and side angles of the rotor.
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