海军航空大学学报2026，Vol.41Issue(4)：643-652,10.DOI:10.7682/j.issn.2097-1427.2026.04.006
不同失稳模态下倾转旋翼机回转颤振参数敏感性对比研究
Comparative Study on Parameter Sensitivity of Tiltrotor Aircraft Whirl Flutter Under Different Instability Modes
摘要
Abstract
To address the core challenge of whirl flutter severely limiting the high-speed flight capability of tiltrotor air-craft and to overcome the analytical inaccuracies of traditional rigid rotor theory,a coupled rotor-pylon-wing aeroelastic dynamics model based on finite volume beam theory and multibody dynamics is established,specifically for the refined analysis of the whirl flutter problem.The core innovation of this research lies in the first systematic comparative study of two baseline configurations with distinct instability mechanisms within the same framework:the Bell model,prone to wing-mode instability,and the MTR model,prone to rotor-mode instability.The influence of key design parameters such as pitch-flap coupling angle,pylon mass,rotor mast height,and wing stiffness on the whirl flutter stability bound-ary is investigated.The results demonstrate that the influence of the same design parameter on the whirl flutter boundary speed varies significantly across different baseline configurations.For instance,an increase in pylon mass leads to oppo-site trends in stability for the two configurations.This indicates that the optimization strategy for improving whirl flutter stability is highly configuration-dependent.This research not only provides a high-fidelity theoretical tool for tiltrotor aircraft whirl flutter analysis,but also offers a clear and targeted theoretical basis for the aeroelastic optimization of dif-ferent configurations through innovative comparative analysis.关键词
倾转旋翼机/旋翼-短舱-机翼耦合系统动力学模型/有限体积模型/多体动力学方法/回转颤振边界Key words
tiltrotor aircraft/rotor-pylon-wing coupled dynamic model/finite volume model/multi-body dynamics method/whirl flutter boundary分类
航空航天引用本文复制引用
薛文正,李博,王潇..不同失稳模态下倾转旋翼机回转颤振参数敏感性对比研究[J].海军航空大学学报,2026,41(4):643-652,10.基金项目
国家自然科学基金(12272169) （12272169）
