基于贝叶斯优化方法的高速共轴对转螺旋桨桨叶气动外形优化设计  

Aerodynamic shape optimization design of high-speed coaxial counter-rotating propeller blades based on Bayesian optimization method

作　　者：赵荣泽 王博[1] 曹德松 胡东根 招启军[1] ZHAO Rongze;WANG Bo;CAO Desong;HU Donggen;ZHAO Qijun(College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;AVIC Huiyang Aviation Propeller Co.LTD.,Baoding 071051,China)

机构地区：[1]南京航空航天大学航空学院,南京210016 [2]中航工业惠阳航空螺旋桨有限责任公司,保定071051

出　　处：《空气动力学学报》2025年第3期67-77,I0002,共12页Acta Aerodynamica Sinica

基　　金：国家自然科学基金(12032012);直升机动力学全国重点实验室基金(61422202103)。

摘　　要：共轴对转螺旋桨因其两桨间距小、相互间气动干扰显著,在气动和噪声方面存在着不容忽视的问题。本文构建了基于贝叶斯优化方法的高速共轴对转螺旋桨桨叶气动外形优化框架,以提升巡航状态气动效率为目标开展优化设计。优化框架中,为更准确地评估两桨间气动干扰、高速条件下空气压缩性和复杂桨叶外形对高速共轴对转螺旋桨气动特性的影响,采用基于RANS方程的多重参考坐标系方法评估其气动性能;构建Kriging代理模型以描述样本点输入与响应之间的关系,并使用组合加点准则提高寻优效率;结合气动和结构特性,分别对前、后桨的弦长、扭转和前/后掠分布进行参数化。在考虑整流罩和旋转轴影响的情况下,得出的优化方案综合气动效率达到0.8413,相较于初步方案提升约1.53%;优化方案的前、后桨载荷分别约在0.75R和0.7R处达到峰值。本文最终得到的优化设计方案,揭示了高效率的高速共轴对转螺旋桨桨叶的外形特征。Coaxial counter-rotating propellers exhibit non-negligible aerodynamic and acoustic challenges due to the close spacing between the two rotors and significant mutual aerodynamic interference.This study establishes a Bayesian optimization-based aerodynamic shape optimization framework for high-speed coaxial contra-rotating propeller blades,aiming to enhance aerodynamic efficiency under cruise conditions.Within this framework,the multiple reference frame(MRF)method coupled with Reynolds-averaged Navier-Stokes(RANS)equations was adopted to accurately evaluate the aerodynamic characteristics,including the blade-to-blade aerodynamic interaction between the blades,air compressibility effects at high rotational speeds,and the influence of complex blade geometry.A Kriging surrogate model was developed to map the relationships between design parameters and aerodynamic responses,with a composite infill criterion implemented to accelerate convergence.Aerodynamic-structural integrated parameterization was implemented,independently defining chord length,twist distribution,and sweep configuration for both forward and aft propellers.The optimized configuration demonstrates a comprehensive aerodynamic efficiency of 0.8413 when accounting for spinner and rotating shaft effects,representing a 1.53%improvement over the baseline design.Load distribution analysis reveals that the peak loading positionsvare located at 0.75R for the forward propeller and 0.7R for the aft propeller.The optimized design scheme obtained in this study elucidates the geometric characteristics of highefficiency and high-speed coaxial counter-rotating propeller blades.

关 键 词：共轴对转螺旋桨 气动优化设计 代理优化 加点准则 多重参考坐标系 

分 类 号：V211.44[航空宇航科学与技术—航空宇航推进理论与工程]