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Autore principale:	Acoustic Research Systems
Natura:	Recurso digital
Lingua:
Pubblicazione:	Zenodo 2024
Accesso online:	https://doi.org/10.5281/zenodo.20345408
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_version_	1866901934163623936
author	Acoustic Research Systems
author_facet	Acoustic Research Systems
contents	<p><em>Spacecraft must be tested in acoustic environments by means of reverberant </em><em>chamber tests (RFAN) or Direct Field Acoustic Tests (DFAN) where many </em><em>speakers surround the test object. These tests require acoustic control </em><em>software and matching hardware to drive the speakers with a controlled </em><em>noise spectrum. Suppliers of such systems and test facilities are sometimes </em><em>challenged with acoustic standing waves that create hotspots with higher </em><em>than specified sound pressure levels that could damage the Device Under </em><em>Test (DUT) by exciting structural resonances. As a safety measure to protect </em><em>the DUT, a response limiting method (notching) is applied where critical </em><em>frequencies in the acoustic spectrum are attenuated to keep the structural </em><em>response levels limited.</em></p>
format	Recurso digital
id	zenodo_https___doi_org_10_5281_zenodo_20345408
institution	Zenodo
language
publishDate	2024
publisher	Zenodo
record_format	zenodo
spellingShingle	Case Study of an Octave band control method for structural response notching Acoustic Research Systems <p><em>Spacecraft must be tested in acoustic environments by means of reverberant </em><em>chamber tests (RFAN) or Direct Field Acoustic Tests (DFAN) where many </em><em>speakers surround the test object. These tests require acoustic control </em><em>software and matching hardware to drive the speakers with a controlled </em><em>noise spectrum. Suppliers of such systems and test facilities are sometimes </em><em>challenged with acoustic standing waves that create hotspots with higher </em><em>than specified sound pressure levels that could damage the Device Under </em><em>Test (DUT) by exciting structural resonances. As a safety measure to protect </em><em>the DUT, a response limiting method (notching) is applied where critical </em><em>frequencies in the acoustic spectrum are attenuated to keep the structural </em><em>response levels limited.</em></p>
title	Case Study of an Octave band control method for structural response notching
url	https://doi.org/10.5281/zenodo.20345408

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