Page 116 - 《应用声学》2020年第1期

第 39 卷 第 1 期 Vol. 39, No. 1
2020 年 1 月 Journal of Applied Acoustics January, 2020

⋄ 研究报告 ⋄

中压气源亚/跨音速射流噪声试验台设计 ∗

雷红胜 † 张俊龙 张 军 赵 昱 卢翔宇

(中国空气动力研究与发展中心 绵阳 621000)

摘要：在全消声室配套射流噪声试验台是开展射流噪声机理和测量方法研究的重要基础。该文研究了中压气
源亚/跨音速射流噪声试验台设计，包括设计指标分析、系统软硬件组成、调试以及达到的效果等。结果表明，
采用两级调压的方式可以较好地满足射流噪声研究所需的流量和压力需求，同时通过合理的流道设计，控制
精度和流场品质均达到较高要求。与国际主流结果对比表明，该试验台测得的射流噪声信号具有极低的干扰
噪声水平。
关键词：射流噪声；两级调压；试验台
中图法分类号: V216.5+4 文献标识码: A 文章编号: 1000-310X(2020)01-0112-08
DOI: 10.11684/j.issn.1000-310X.2020.01.014

Design of the subsonic/transonic jet noise test equipment based on the
medium-pressure air system

LEI Hongsheng ZHANG Junlong ZHANG Jun ZHAO Yu LU Xiangyu

(China Aerodynamics Research and Development Center, Mianyang 621000, China)

Abstract: In order to develop the research on the jet-noise mechanism and the measuring method, the building
of the test equipment in anechoic chamber is necessary. This paper introduces the design index, system
composition, debugging and the effect of the jet noise test equipment based on the medium-pressure air system
in detail. The test result showed that two stage pressure regulator could meet the jet noise test demand of the
air flow rate and pressure. The result shows that the level of interference noise for the jet noise is very low
compared with the main international test equipment.
Keywords: Jet noise; Two stage regulator; Test equipment

2019-06-20 收稿; 2019-10-23 定稿
∗ 空气动力学重点实验室项目
作者简介: 雷红胜 (1981– ), 男, 湖北枣阳人, 硕士, 研究方向: 风洞测控技术。
† 通信作者 E-mail: 27404220@qq.com