安静航天器舱内通风机:声学测量结果

IF 1.3 4区医学 Q3 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY

Noise & Health Pub Date : 2023-05-25 DOI:10.3397/nc_2023_0010

D. Sutliff

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引用次数: 0

摘要

设计了一种适合于地面气动和声学试验的航天器舱室通风机，并制作了该风机组件的两个副本，命名为“安静空间风扇”。这两款风扇都在美国宇航局格伦研究中心声学测试实验室进行了空气动力学性能和声学水平的测试。设计了一个新的小型轴流风机试验台，以适应仪表和背压调整。测量结果包括:用于测量性能的静压，72通道管道内麦克风阵列，用于声学的外部麦克风测量，以及风扇尾迹的级间热线测量。作为一系列报告的一部分，本报告记录了声学测量。

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Quiet Spacecraft Cabin Ventilation Fan: Acoustic Measurements Results

A spacecraft cabin ventilation fan suitable for aerodynamic and acoustic ground tests was designed and two copies of the fan assembly were fabricated - designated as Quiet Space Fan. Both fans were tested for aerodynamic performance and acoustic levels in the NASA Glenn Research Center Acoustical Testing Laboratory. A new test rig for small axial flow fans was designed to accommodate the instrumentation and back-pressure adjustments. Measurements acquired were - static pressures for measuring performance, a 72-channel in-duct microphone array, external microphone measurements for acoustics, and inter-stage hot wire measurements of the fan wake. This report documents the acoustic measurements as part of a series of reports.

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来源期刊

Noise & Health AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY-PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH

CiteScore

2.10

自引率

14.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Noise and Health is the only International Journal devoted to research on all aspects of noise and its effects on human health. An inter-disciplinary journal for all professions concerned with auditory and non-auditory effects of occupational, environmental, and leisure noise. It aims to provide a forum for presentation of novel research material on a broad range of topics associated with noise pollution, its control and its detrimental effects on hearing and health. It will cover issues from basic experimental science through clinical evaluation and management, technical aspects of noise reduction systems and solutions to environmental issues relating to social and public health policy.