Design of nonwoven carpets to upgrade sound isolation features in automobiles

Raziye Atakan*, Hale Karakaş, Serdar Sezer, Süleyman İpek, İpek Aravi, Cansu Yıldırım, Ezgi Şen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

With the increases of the expected properties of textile products, better and advanced new designs are being created. Textiles used in vehicles are increasing, and the current performance of the expectations bar is determined by automobile manufacturers. While meeting the expectations of users in the vehicle mechanically, but also disturbing the user during operation of the mechanical properties of this ratio should be minimized. This study was intended to minimize sound transmission of nonwoven textile components, which are used in cars as silencer parts. For that purpose, four different models were developed in this study. First model consists of three designs for baggage carpets. Second model has six designs for floor coverings. Third model comprises two designs inner dash felt and finally fourth model includes two designs of hood liners. The acoustical absorption coefficients and transmission loss of these carpets were tested and evaluated in the frequency range of 16-6300 Hz. The measurements demonstrated that nonwoven layer is a very significant and effective part of a carpet due to its contribution in the sound isolation. With this study, it has been determined which layer has better performance on sound absorption and transmission loss among different carpet types. A combination of heavy layer and nonwoven layer carpets is found to be benefit for noise and sound insulation.

Original languageEnglish
Pages (from-to)270-280
Number of pages11
JournalAutex Research Journal
Volume14
Issue number4
DOIs
Publication statusPublished - 1 Dec 2014
Externally publishedYes

Bibliographical note

Publisher Copyright:
© AUTEX.

Keywords

  • Impedance tube
  • Nonwoven automotive carpet
  • Sound absorption
  • Transmission loss

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