直升机旋翼噪声特性研究

详细信息    查看官网全文

• 英文论文题名：Study on the helicopter rotor noise characters
• 论文作者：章佳荣 ; 王冠 ; 王娟娟 ; 朱知萌
• 英文论文作者：ZHANG Jia-rong ; WANG Guan ; WANG Juan-juan ; ZHU Zhi-meng ; Systems Engineering Research Institute
• 年：2016
• 作者机构：中国船舶工业系统工程研究院;
• 论文关键词：直升机辐射噪声 ; 旋翼噪声 ; 特征识别
• 英文论文关键词：helicorpter radiated noise ; rotor noise ; feature recognition
• 会议召开时间：2016-10-25
• 会议录名称：2016年中国造船工程学会水中目标特性学组学术交流会论文集
• 语种：中文
• 分类号：V275.1
• 学会代码：SXJS
• 会议名称：2016年中国造船工程学会水中目标特性学组学术交流会
• 会议地点：中国辽宁大连
• 主办单位：中国船舶重工集团公司第七六0研究所水中测控技术重点实验室
• 学会名称：《声学技术》编辑部
• 页数：4
• 文件大小：481k
• 原文格式：D
• 会议级别：全国

摘要

通过对直升机噪声特性的研究,可为进一步提升对直升机目标的探测与识别能力提供理论支撑。文章通过查阅大量文献和技术资料,对直升机的噪声产生源、不同噪声源的频谱特征等内容进行了研究,并以某轻型直升机为研究对象进行了验证性实验测试。研究结果表明:直升机旋翼产生的低频噪声具有明显的线谱特征,并且相对于发动机产生的宽带噪声具有更好的传播特性,是进行远距离直升机探测的有利目标特征;旋翼噪声的频率特征与叶片数量、旋转速度等因素有关,可以此作为直升机类型识别的依据之一;噪声强度与飞机姿态、飞行阶段等因素有关,且声传播损失基本满足球面波衰减规律,据此可进行飞机姿态的判别和目标距离的粗略估计。
Detection capability and recognition capability to the helicorpter can be soundly improved if the characters of the helicorpter radiated noise were well studied. Some important informations for the helicorpter radiated noise, such as the nose generated position, noise spctrum composition, et al. were revealed in this paper through the studies and analysis of a mass of literatures, as well as some designed experiments for a light helicorpter. Results are as follws: Firstly, noise generated by the helicorpter rotor wings is in lowfrequency band with distinct line spectrum characters, and it has a better propagation ability than the broadband noise that genearted by the helicorpter motor, and this can be used as a beniful character for long distance detection of the helicorpter; Secondly, frequency characters of the rotor noise related to the wing numbers, rotate speeds, and some other factors, and this can be used to the helicorpter type recognition; Thirdly, noise intesity related to the attitude, flight phase, and some other factors, the acoustic propagation loss meets the law of spherical wave attenuation, and this can be used to the aircraft attitude discrimination and target distance estimaition.

引文

[1]汤智胤,何琳.基于直升机声纳探测的潜艇被发现概率仿真[J].系统仿真学报,2008,20(17):4751-4755.TANG Zhiyin,HE Lin.Simulation Research of Counter-Detection Probability of Submarine Based on Antisubmarine Helicopter Sonar Detection[J].Journal of System Simulation,2008,20(17):4751-4755.
    [2]陈韶华,李世智,陈川.水下对直升机探测技术研究[J].水雷战与舰船防护,2013,21(2):50-54.CHEN Shaohua,LI Shzhi,CHEN Chuan.Research on Underwater Detection Technology for Helicopter[J].Mine Warfare&Ship Self-Defence,2013,21(2):50-54.
    [3]吴希明.我国直升机外部噪声控制技术发展思路研究[J].直升机技术,2014,3:1-6.WU Ximing.Research on the Development Path of the Helicopter External Noise Control Technology in China[J].Helicopter Technique,2014,3:1-6.
    [4]王华明,张强,胡章伟,等.AS350B2直升机飞行噪声的试验研究[J].声学学报,2003,28(2):177-181.WANG Huaming,ZHANG Qiang,HU Zhangwei.et al.An experimental study of AS350B2 helicopter noise[J].Acta Acustica,2003,28(2):177-181.
    [5]傅雅慧,祖媛媛,蒋毅.典型直升机噪声特点及其防护需求分析[J].防护装备技术研究,2014,6:17-19.FU Yahui,ZU Yuanyuan,JIANG Yi.Noise Anlysis of Helicopter and Protection Requirements[J].China Personal Protective Equipment,2014,6:17-19.
    [6]段广战,陈平剑.基于CFD的直升机旋翼噪声计算[J].空气动力学学报,2009,27(3):314-318.DUAN Guangzhan,CHEN Pingjian.Research of helicopter rotor aeroacoustic noise based on CFD technics[J].Acta Aerodynamica Sinica,2009,27(3):314-318.
    [7]杨晓芳.直升机前飞时旋翼旋转噪声计算与分析[D].南京:南京航空航天大学,2009.YANG Xiaofang.Rotor Noise Computation and Analyzing for the Helicorpter at Forword Flight Phase[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2009.
    [8]黄汉超.直升机尾桨噪声特性研究[D].南京:南京航空航天大学,2010.HUANG Hanchao.Theoretical and Experimental Investigation of Helicopter Tail Rotor Noise[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2010.
    [9]彭延辉.直升机旋翼桨-涡干扰气动噪声的研究[D].南京:南京航空航天大学,2004.PENG Yianhui.Investigation on the Blade-Vortex Interaction Aerodynamic Noise of Helicopter Rotors[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2004.
    [10]仲唯贵.直升机旋翼尾涡与尾桨干扰噪声研究[D].南京:南京航空航天大学,2006.CHONG Weigui.Research on the Helicopter Tail-rotor and Vortex Interaction Noise[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2006.