摘要
近年来,人们对飞机噪声的要求越来越严苛,适航标准对民用客机气动噪声水平提出更高的标准。首先介绍近年来在北京航空航天大学陆士嘉实验室D5气动声学风洞和D7气动声学风洞中所进行的多个典型气动噪声研究成果,其次以增升装置、起落架、腔体部件和钝体部件为研究对象,探究气动噪声产生机理和降噪技术,为提高该领域的认知和低噪声飞机机体设计提供科学依据和试验数据。
In recent years,people have more and more stringent requirements for aircraft noise.Airworthiness standards have put forward more and more strict requirements on the aerodynamic noise level of civil aircrafts.This article introduces a number of typical aero-noise research results conducted in Beihang University’s D5 aeroacoustics wind tunnel and D7 aeroacoustics wind tunnel in recent years,focusing on the noise mechanism and noise reduction techiniques of lifting devices,landing gears,cavity components and bluff body components.It provides scientific basis and experimental data for improving cognition in this field and low-noise aircraft body design.
作者
刘沛清
郭昊
LIU Peiqing;GUO Hao(Beihang University,Beijing 100191,China)
出处
《民用飞机设计与研究》
2022年第1期1-23,共23页
Civil Aircraft Design & Research
基金
国家自然科学基金12072016,11772033,1217021666和11721202。
关键词
气动声学风洞
气动噪声
增升装置
起落架
腔体部件
钝体部件
aeroacoustics wind tunnel
aerodynamic noise
lifting device
landing gear
cavity part
bluff body part
