消声室内的无人机螺旋桨气动噪声试验  

An experiment of aeroacoustics of propeller for UAV in a semi-anechoic chamber

作　　者：卫凯 燕群[1] 徐健[1] 薛东文[1] 李卓瀚 Wei Kai;Yan Qun;Xu Jian;Xue Dongwen;Li Zhuohan(Aircraft Strength Research Institute of China,Xi'an 710065,China)

机构地区：[1]中国飞机强度研究所三十二室,西安

出　　处：《飞行器强度研究》2022年第4期54-60,共7页Aircraft Strength Research

摘　　要：为了研究某无人机螺旋桨在地面起飞工况下的气动噪声,研制了螺旋桨气动噪声试验平台,在地面声学环境下开展螺旋桨气动噪声试验,获取螺旋桨气动性能和远场场噪声特性,分析拉力、扭矩等气动参数和远场噪声指向性等随螺旋桨转速、桨叶角的变化规律。结果表明:拉力、扭矩等气动参数随着转速、桨叶角的增大而增大;远场噪声最大的区域随着螺旋桨转速和桨叶角的变化而移动;所建立的试验平台和方案可以作为一种螺旋桨气动噪声设计效果的评估手段。In order to study the aeroacousticsof propeller for unmanned aerial vehicle,an experimental platform for propeller aeroacoustics was developed.The aeroacoustic experiment of propeller was carried out in a semi-anechoic chamber,and the aerodynamics and far-field noise characteristics of the propeller were obtained.The relationship betweer propeller aero­dynamic parameters,far-field noise,speed and pitch angle was analyzed.The results show that the aerodynamic parame­ters such as thrust and torque increase with the increase of speed and pitch angle.The area of the largest far-field noise will move with the change of propeller speed and pitch angle.The experimental platform and test scheme developed in this paper can provide reference for propeller aeroacoustics assessment.

关 键 词：螺旋桨 气动 噪声 指向性 试验 

分 类 号：U66[交通运输工程—船舶及航道工程]