Affiliation of Author(s):能源与动力学院
Journal:机械制造与自动化
Key Words:载荷系数;大涵道比;齿轮驱动风扇;气动设计;声学分析;
Abstract:对于齿轮驱动大涵道比涡扇发动机,载荷升高转速减小能够显著降低噪音。探究了载荷系数变化对大涵道比风扇气动噪声的影响。对设计完成的3款不同载荷的大涵道比风扇级进行了系统的声学特性分析。结果表明:无论是对于单转子还是风扇级,随着载荷系数的升高,噪声都逐步降低。超高载荷风扇转子的噪声与常规载荷风扇转子相比,降低了27.36 d B;相应匹配上静子以后,整个风扇级的噪声降低了18.03 d B。
ISSN No.:1671-5276
Translation or Not:no
Date of Publication:2019-10-20
Co-author:宋圣申,曹晖
Correspondence Author:Zhou Zhenggui
Professor
Supervisor of Doctorate Candidates
Gender:Male
Education Level:南京航空航天大学
Degree:Doctoral Degree in Engineering
School/Department:College of Energy and Power Engineering
Discipline:Aerospace Propulsion Theory and Engineering. Fluid Machinery and Engineering
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