| 声衬流动声性能测量的流管实验装置设计及调试 |
| |
| 引用本文： | 李晓锋,王同庆,史伟.声衬流动声性能测量的流管实验装置设计及调试[J].航空动力学报,2005,20(6):1037-1040. |
| |
| 作者姓名： | 李晓锋 王同庆 史伟 |
| |
| 作者单位： | 北京航空航天大学,能源与动力工程学院,北京,100083 |
| |
| 基金项目： | 航空科学基金资助(03C51029) |
| |
| 摘 要： | 管道风扇声衬优化设计的重要环节是实验验证所设计的声衬结构在设计的流动工况下能否具有所要求的声学性能,本文回顾了验证实验装置流管设备的发展历史,介绍了北京航空航天大学所建立的流管装置的结构和工作原理,以及初步的调试,实验说明工作段流场均匀,无流动的声场满足波导管理论,初步调试表明该装置基本满足设计要求,调试是初步的,有、无流动条件的管口的声阻抗测量及其它有关流管的实验研究还有待进一步进行。
|
| 关 键 词： | 航空、航天推进系统 流管装置 声衬 流动声特性 |
| 文章编号： | 1000-8055(2005)06-01037-04 |
| 收稿时间： | 2005/3/16 0:00:00 |
| 修稿时间： | 2005年3月16日 |
Design and Adjustment of Flow Duct Facility for Acoustic Liner Measurement |
| |
| LI Xiao-feng,WANG Tong-qing and SHI Wei.Design and Adjustment of Flow Duct Facility for Acoustic Liner Measurement[J].Journal of Aerospace Power,2005,20(6):1037-1040. |
| |
| Authors: | LI Xiao-feng WANG Tong-qing and SHI Wei |
| |
| Institution: | School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing100083,China;School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing100083,China;School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing100083,China |
| |
| Abstract: | An important problem in the liAbstract:An important problem in liner optimization of ducted fan is to verify whether a designed liner construct possess the desired acoustical properties at presence of flow by experiment.The paper reviews the development of flow ducts facility,introduces the flow ducts facility built up in BUAA,and its configuration,operating principle and an initial test.It shows the flow is uniform in the test section,the sound field without inflow obey the rule of guided duct theory,all of that illustrate the facility satisfy the request for the device fundamentally.The test is only initial,further work for the impedance measurement of the terminals either with flow or without flow and other experimental research works about flow duct facility will be continued. |
| |
| Keywords: | aerospace propulsion system flow duct facility acoustic liner acoustic properties of flow |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
