航空学报2025，Vol.46Issue(2)：206-221,16.DOI:10.7527/S1000-6893.2024.30705
基于涡管模型的倾转四旋翼气动干扰快速分析
Fast analysis of aerodynamic interference for quad-tiltrotor based on vortex tube model
摘要
Abstract
In order to address the challenge of accurately and rapidly evaluating the aerodynamic interference be-tween rotors in the overall design and flight dynamics modeling of quad-tiltrotor aircraft,a fast analysis method for mul-tirotor aerodynamic interference based on the vortex tube wake model is developed.Based on the classical vortex theory,the wake vortex system of each rotor is abstracted as a semi-infinite vortex tube,and a semi-analytical solution for the induced velocity at any point in space by rotor vortex tubes is derived.This forms an efficient computation method for aerodynamic interference between multirotor.Combined with the dynamic inflow model accounting for rotor self-induced velocity,an accurate and efficient model for calculating the induced velocity in multirotor is established.Based on this,the model is validated using wind tunnel test results of thrust-power performance curves for coaxial and tandem rotors.Finally,the aerodynamic interference characteristics between the four rotors of a scaled model of a quad-tiltrotor aircraft are analyzed during the helicopter mode and tilt transition mode.The results show that the model can capture the influence of vertical and horizontal spacing on aerodynamic interference between rotors relatively and accurately,making it suitable for fast analysis of multirotor aerodynamic interference.The aerodynamic interference characteristics between rotors near the helicopter mode of quad-tiltrotor aircraft vary significantly.A reasonable aerody-namic layout and rotor rotation direction design can effectively improve the induced velocity of the disturbed rotor and the load distribution on the rotor disc.关键词
倾转四旋翼/涡管尾迹/气动干扰/诱导速度/飞行动力学Key words
quad-tiltrotor/vortex tube wake/aerodynamic interference/induced velocity/flight dynamics分类
航空航天引用本文复制引用
王冶平,吉洪蕾,周攀,叶毅..基于涡管模型的倾转四旋翼气动干扰快速分析[J].航空学报,2025,46(2):206-221,16.基金项目
国家自然科学基金(11902052) （11902052）
重庆市自然科学基金(CSTB2022NSCQ-MSX1592) （CSTB2022NSCQ-MSX1592）
中国空气动力研究与发展中心旋翼空气动力学重点实验室研究开放课题(RAL202302-3) National Natural Science Foundation of China(11902052) （RAL202302-3）
Natural Science Foundation of Chongqing(CSTB2022NSCQ-MSX1592) （CSTB2022NSCQ-MSX1592）
Open Project of the Key Laboratory of Rotor Aerodynamics,China Aerodynamics Research and Development Center(RAL202302-3) （RAL202302-3）
