Conference paper Open Access

Simulator for the reproduction of "Low Sonic Boom"-signatures

Töpken, Stephan; van de Par, Steven


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{
  "publisher": "DEGA e.V.", 
  "DOI": "10.5281/zenodo.4246729", 
  "ISBN": "978-3-939296-17-1", 
  "container_title": "Fortschritte der Akustik - DAGA 2020", 
  "language": "eng", 
  "title": "Simulator for the reproduction of \"Low Sonic Boom\"-signatures", 
  "issued": {
    "date-parts": [
      [
        2020, 
        3, 
        16
      ]
    ]
  }, 
  "abstract": "<p>Supersonic aircraft produce a sonic boom when flying faster than the speed of sound. In order to rule out detrimental<br>\ne ects for inhabitants of overflown areas, civil supersonic flights (like the Concorde) were allowed to fly over water only.<br>\nDue to progress in aircraft design, the super sonic boom may be reduced considerably in the future. Such &rdquo;Low Sonic<br>\nBoom&rdquo;-signatures will be considerably quieter and sound completely di erent compared to conventional sonic booms.<br>\nCurrently, the sensation and the subjective response of humans to future &rdquo;Low Sonic Boom&rdquo;-signatures is not known.<br>\nFor an assessment of human responses to &rdquo;Low Sonic Boom&rdquo;-signatures, a Sonic-Boom simulator has been built at the<br>\nUniversity of Oldenburg as a pressure chamber with a volume of about 9 m<sup>3</sup>. Two 18&rdquo; loudspeaker chassis enable the<br>\nproduction of an overpressure of up to 20 Pa for a signature duration of 200 ms. The background noise level in the<br>\nchamber is very low (21 dB(A)) and the chamber has a very small reverberation time of T<sub>20</sub>=0.2 s averaged over octave<br>\nbands from 63 Hz to 8 kHz. A vibration platform is installed in the chamber to simulate whole-body vibration that may<br>\noccur in connection with &rdquo;Low Sonic Boom&rdquo;-signatures.</p>", 
  "author": [
    {
      "family": "T\u00f6pken, Stephan"
    }, 
    {
      "family": "van de Par, Steven"
    }
  ], 
  "id": "4246729", 
  "event-place": "Hannover, Germany", 
  "version": "Final", 
  "publisher_place": "Berlin, Germany", 
  "type": "paper-conference", 
  "event": "DAGA 2020", 
  "page": "409-412"
}
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