Experimental research of active vibration and noise control of electrically controlled rotor  

作　　者：Jinchao MA Yang LU Taoyong SU Shujun GUAN 

机构地区：[1]National Key Laboratory of Rotorcraft Aeromechanics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China [2]School of General Aviation,Nanchang Hangkong University,Nanchang 330063,China

出　　处：《Chinese Journal of Aeronautics》2021年第11期106-118,共13页中国航空学报（英文版）

基　　金：the National Key Laboratory Foundation of China(No.51375229);Priority Academic Program Development of Jiangsu Higher Education Institutions,China(PAPD)。

摘　　要：Electrically Controlled Rotor(ECR),also called as swashplateless rotor,applies blade pitch inputs via trailing-edge flaps system instead of traditional swashplate mechanism.In addition to primary control,rotor vibration reduction and noise alleviation are also achievable via applying higher harmonic control inputs with the trailing-edge flaps.In this paper,the feasibility of ECR to reduce vibration and noise actively is verified experimentally.Firstly,the test scheme of ECR active vibration and noise control is proposed,and the ECR test platform is modified according to the test scheme.Then,an adaptive control algorithm based on Kalman filter is developed.Lastly,hover and wind tunnel tests is performed to verify the feasibility of ECR active vibration and noise control.The results demonstrate that the ECR are effective for reducing rotor vibration and noise simultaneously.In the hover condition,the ECR can reduce the in-plane hub vibration by 42%and the inplane noise by 4dB.In wind tunnel condition,ECR can reduce the hub vibration by 75%and the BVI noise by 3dB.

关 键 词：Active control EXPERIMENT FLAPS Noise ROTOR VIBRATION 

分 类 号：V216[航空宇航科学与技术—航空宇航推进理论与工程] V275.1