桨叶弹性变形对旋翼噪声辐射特性的影响机理-2026增刊2

doi:10.7527/S1000-6893.2026.33924

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桨叶弹性变形对旋翼噪声辐射特性的影响机理-2026增刊2

王鑫,郑礼雄,张夏阳,招启军

南京航空航天大学

收稿日期:2026-05-21 修回日期:2026-06-02 出版日期:2026-06-04 发布日期:2026-06-04
通讯作者: 张夏阳
基金资助:
国家自然科学基金;直升机动力学全国重点实验室专项基金资助;教育部可持续制造国际合作联合实验室-中央高校基本科研业务费

Influence mechanism of blade elastic deformation on rotor noise radiation characteristics

Wang Xin¹,Li-Xiong ZHENG²,Xiayang Zhang¹, ²

1. Nanjing University of Aeronautics and Astronautics
2.

Received:2026-05-21 Revised:2026-06-02 Online:2026-06-04 Published:2026-06-04
Contact: Xiayang Zhang

摘要/Abstract

摘要： 摘要：旋翼作为直升机的主要噪声源，其气弹耦合效应对直升机噪声辐射特性具有关键影响。为探究该影响，基于几何精确梁理论（Geometrically Exact Beam Theory，GEBT）与粘性涡粒子方法（Viscous Vortex Particle Method，VVPM），构建了一套兼具高效、高精度旋翼气弹紧耦合分析模型，进一步引入FW-H方程建立了能考虑弹性变形影响的旋翼噪声计算方法。依托典型旋翼的试验结果开展对比分析，验证了建模分析方法的有效性。通过分析刚性、弹性旋翼下方观测平面内的A计权声级（dB(A)），揭示了旋翼气弹特性对噪声幅值、辐射特性的影响规律。进一步结合声压级频域特性，重点分析了气弹耦合效应对人耳敏感频段噪声（1~5kHz）的影响，揭示了弹性变形对主观听觉感知旋翼噪声的影响，为直升机降噪工程应用提供理论支撑。

关键词: 关键词：旋翼, 粘性涡粒子方法, 几何精确梁理论, FW-H方程, 气弹耦合, 噪声频谱

Abstract: Abstract:The rotor is the main noise source of helicopters, and its aeroelastic coupling characteristics critically affect the helicopter noise radiation. A high-efficiency and high-precision tightly coupled aeroelastic analysis model is developed based on the Geometrically Exact Beam Theory (GEBT) and the Viscous Vortex Particle Method (VVPM), and the Ffowcs Williams–Hawkings (FW-H) equation is introduced to establish the noise prediction model for investigating the influence mechanism of rotor aeroelastic coupling characteristics. The effectiveness of the proposed method is verified by comparing with the experimental data. The influence mechanism of rotor aeroelastic characteristics on noise amplitude and radiation characteristics is revealed by comparing the A-weighted sound pressure levels (SPL(dB(A))) on the observation plane below rigid and elastic rotors. Furthermore, combined with the frequency spectrum characteristics, the influence of aeroelastic coupling effects on the noise of the human ear-sensitive frequency band (1–5 kHz) is emphatically analyzed, revealing the impact of elastic deformation on the subjectively perceived rotor noise, which provides theoretical support for the engineering application of helicopter noise reduction.

Key words: Keywords: Rotor, Viscous vortex particle method, Geometrically exact beam theory, FW-H equation, Aeroelastic coupling, Noise frequency spectrum

中图分类号:

V215.34

王鑫郑礼雄张夏阳招启军. 桨叶弹性变形对旋翼噪声辐射特性的影响机理-2026增刊2[J]. 航空学报, doi: 10.7527/S1000-6893.2026.33924.

Wang Xin Li-Xiong ZHENG Xiayang Zhang. Influence mechanism of blade elastic deformation on rotor noise radiation characteristics[J]. Acta Aeronautica et Astronautica Sinica, doi: 10.7527/S1000-6893.2026.33924.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

桨叶弹性变形对旋翼噪声辐射特性的影响机理-2026增刊2

Influence mechanism of blade elastic deformation on rotor noise radiation characteristics

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