The invention relates to a rotor aerodynamic configuration robust design optimization method in an uncertain environment, which comprises the following steps: S1, establishing an atmospheric density uncertainty model, S2, constructing a rotor aerodynamic model by adopting a viscous vortex particle algorithm, S3, describing span-wise distribution of chord length and torsion angle of a blade by adopting quartic and quartic B-spline curves, and S4, constructing a rotor aerodynamic configuration model by adopting the quartic and quartic B-spline curves. S4, determining design constraints and optimization objectives of blade appearances according to related parameters and mission profiles of the aircraft, S5, calculating rotor optimization objectives, S6, carrying out multi-objective optimization design through NSGA-II to obtain a Pareto optimal solution set, S7, judging whether optimization converges or not, if yes, outputting optimization results, and if not, carrying out further optimization; according to the method, the uncertainty of the atmospheric density and the aerodynamic performance of the rotor wing are comprehensively considered, and the designed rotor wing has good aerodynamic performance and environmental adaptability in the environment with the uncertain atmospheric density.
本发明涉及一种不确定环境下的旋翼气动外形稳健设计优化方法,包括如下步骤:S1:建立大气密度不确定性模型,S2:采用黏性涡粒子算法构建旋翼气动模型,S3:采用4次和3次的B‑样条曲线描述桨叶的弦长和扭转角的展向分布,S4:据飞行器的相关参数和任务剖面,确定桨叶外形的设计约束以及优化目标,S5、进行旋翼优化目标的计算,S6、通过NSGA‑II开展多目标优化设计,得到Pareto最优解集,S7、判断优化是否收敛,若是则输出优化结果,否则进一步优化;本发明具有综合考虑了大气密度的不确定性和旋翼气动性能,设计得到的旋翼在不确定大气密度的环境下兼具良好的气动性能和环境适应性。
Rotor aerodynamic configuration robust design optimization method in uncertain environment
一种不确定环境下的旋翼气动外形稳健设计优化方法
2024-10-22
Patent
Electronic Resource
Chinese
IPC: | G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
Rapid design platform and method for aerodynamic configuration of rotor blade
European Patent Office | 2023
|British Library Conference Proceedings | 2009
|Rotor Blade Aerodynamic Design
NTIS | 1989
|Low-noise rotor blade aerodynamic configuration of helicopter
European Patent Office | 2021
|