航空学报2025，Vol.46Issue(15)：154-171,18.DOI:10.7527/S1000-6893.2025.31583
基于频域双LMS的MFC智能旋翼减振降噪
Vibration damping and noise reduction of MFC intelligent rotor based on frequency-domain dual LMS method
摘要
Abstract
In helicopter rotor active vibration and noise reduction technology,smart torsional rotors based on Macro Fiber Composite(MFC)are considered as one of the most promising methods due to their lack of any additional me-chanical components.Currently,most Active Torsion Rotor(ATR)vibration and noise reduction technologies based on MFC are still in the theoretical research stage.This paper uses MFC as the actuator and proposes a simple dual Least Mean Square(LMS)frequency-domain adaptive Higher Harmonic Control(HHC)algorithm for the smart tor-sional rotor based on the NACA23012 airfoil.Vibration and noise active closed-loop control experiments are conducted in a 3.4 m×2.4 m open-circuit wind tunnel.Compared to traditional frequency-domain HHC algorithms,the computa-tional effort for single harmonic control is reduced by 5.5 to 11 times.Under various conditions,such as rotor speeds from 150 r/min to 210 r/min,wind speeds from 5 m/s to 10 m/s,and rotor shaft tilt angles of 0° and 8°,the controller reduces vibration levels by 27.24%to 58.55%.At a rotor speed of 210 r/min,wind speed of 10 m/s,and rotor shaft tilt angle of 0°,the controller can reduce noise levels by about 2.5 dB to 3.2 dB.关键词
智能扭转旋翼/压电纤维复合材料/最小均方法/主动控制/减振降噪Key words
smart torsional rotor/macro fiber composite/least mean squares method/active control/vibration and noise reduction分类
航空航天引用本文复制引用
周千千,季宏丽,陶翀骢,吴义鹏,张超,裘进浩..基于频域双LMS的MFC智能旋翼减振降噪[J].航空学报,2025,46(15):154-171,18.基金项目
国家重点研发计划(2021YFB3400100) National Key R&D Program of China(2021YFB3400100) （2021YFB3400100）
