Applying Perforated Panel Sound-absorbing Structures to HVAC

DOI

Bibliographic Information

Other Title
  • 有孔パネルを用いた吸音構造の車両空調への適用

Abstract

With electrification of vehicles, compactness/lightness and quietness of HVAC is required, to improve electricity consumption and cabin comfortability. In this study, applying sound-absorbing structures using perforated panels target to HVAC to reduce noise without changing its overall size. The challenge in applying sound-absorbing structures to HVAC was considered to be the change in sound absorption characteristics depending on the sound incident angle. To meet this issue, we introduced partitions in the air cavity behind the perforated panel. The design method of the partitions was studied experimentally, and the evaluation in an actual HVAC unit confirmed that a sound-absorbing structure using perforated panels could reduce noise at the targeted frequency.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390579134192289280
  • DOI
    10.11351/jsaeronbun.54.1145
  • ISSN
    18830811
    02878321
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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