航空学报2026，Vol.47Issue(4)：31-41,11.DOI:10.7527/S1000-6893.2025.32261
基于多重置信度优化的尾座式无人机共轴双旋翼气动设计
Aerodynamic design of coaxial rotor for tailsitter UAV based on multi-fidelity optimization
张威 1赵洪 1徐明1
作者信息
- 1. 中国直升机设计研究所,景德镇 333000
- 折叠
摘要
Abstract
The aerodynamic optimization design of coaxial rotor for tailsitter UAV faces challenges in balancing mul-tiple flight modes and addressing complex aerodynamic interference between rotors.To address these challenges,this study establishes a high-fidelity aerodynamic model based on a hybrid Viscous Vortex Particle Method(VVPM)and Vortex-In-Cell(VIC)approach.A multi-fidelity Bayesian optimization strategy is designed to balance computa-tional costs and accuracy for rotor aerodynamic performance.By treating rotor hover power and forward-flight power as dual optimization objectives,a Pareto optimal solution set for the coaxial rotor design is derived.Flow-field analysis reveals that the hover-optimized design employing mid-span wide chord and gradient twist configurations effectively suppresses blade tip vortex development and enhances hover efficiency.The forward-flight optimized design utilizes inner-span increasing chord and high-gradient twist designs to mitigate forward-flight blade tip vortices and profile drag power and improve propulsive efficiency,yet induces premature vortex roll-up and reduces performance in hover.A balanced optimization design,harmonizing chord gradient and twist angle distributions,synergistically balances hover/forward-flight aerodynamic performance,overcoming limitations of single-condition optimization.关键词
尾座式/共轴双旋翼/黏性涡粒子方法/贝叶斯优化/优化设计Key words
tailsitter/coaxial rotor/viscous vortex particle method/Bayesian optimization/optimization design分类
航空航天引用本文复制引用
张威,赵洪,徐明..基于多重置信度优化的尾座式无人机共轴双旋翼气动设计[J].航空学报,2026,47(4):31-41,11.
