Sound package for a magnesium alloy dash panel

Authors

  • Aljosa Rakic Dept. of Mechanical Engineering, Université de Sherbrooke, 2500 Boul. Université, QC J1K 3R1, Canada
  • Raymond Panneton Dept. of Mechanical Engineering, Université de Sherbrooke, 2500 Boul. Université, QC J1K 3R1, Canada
  • Noureddine Atalla Dept. of Mechanical Engineering, Université de Sherbrooke, 2500 Boul. Université, QC J1K 3R1, Canada

Keywords:

Acoustic wave absorption, Magnesium alloys, Sound insulating materials, 3D models, Automobile companies, Car cabins, Damping material, Low frequency, Low mass, Sound absorption, Sound transmission loss, Statistical energy analysis, Steel parts, Transmission loss, Volkswagen, Weight ratios

Abstract

The automobile companies such as Ford and Volkswagen decided to use magnesium alloy to replace some steel parts of the car. The magnesium alloy has several advantages over steel. It is more malleable, more ductile, lighter, and it has a higher stiffness weight ratio. However, its low mass gives a poor sound transmission loss performance compared to steel. A 3D model of a car has been designed in the statistical energy analysis (SEA) software VA ONE to calculate the average sound absorption of the car cabin. This model takes into account the sound absorption of seats, roof, floor and doors. The first concept is composed of absorbers and insulators materials. A similar structure was used for the second concept. Only a small damping material layer was added to improve the transmission loss at low frequencies. The optimization was performed on 33 different materials considering the following criteria.

Additional Files

Published

2011-09-01

How to Cite

1.
Rakic A, Panneton R, Atalla N. Sound package for a magnesium alloy dash panel. Canadian Acoustics [Internet]. 2011 Sep. 1 [cited 2025 Feb. 13];39(3):14-5. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2387

Issue

Vol. 39 No. 3 (2011)

Section

Proceedings of the Acoustics Week in Canada

License

Author Licensing Addendum

This Licensing Addendum ("Addendum") is entered into between the undersigned Author(s) and Canadian Acoustics journal published by the Canadian Acoustical Association (hereinafter referred to as the "Publisher"). The Author(s) and the Publisher agree as follows:

  1. Retained Rights: The Author(s) retain(s) the following rights:

    • The right to reproduce, distribute, and publicly display the Work on the Author's personal website or the website of the Author's institution.
    • The right to use the Work in the Author's teaching activities and presentations.
    • The right to include the Work in a compilation for the Author's personal use, not for sale.

  2. Grant of License: The Author(s) grant(s) to the Publisher a worldwide exclusive license to publish, reproduce, distribute, and display the Work in Canadian Acoustics and any other formats and media deemed appropriate by the Publisher.

  3. Attribution: The Publisher agrees to include proper attribution to the Author(s) in all publications and reproductions of the Work.

  4. No Conflict: This Addendum is intended to be in harmony with, and not in conflict with, the terms and conditions of the original agreement entered into between the Author(s) and the Publisher.

  5. Copyright Clause: Copyright on articles is held by the Author(s). The corresponding Author has the right to grant on behalf of all Authors and does grant on behalf of all Authors, a worldwide exclusive license to the Publisher and its licensees in perpetuity, in all forms, formats, and media (whether known now or created in the future), including but not limited to the rights to publish, reproduce, distribute, display, store, translate, create adaptations, reprints, include within collections, and create summaries, extracts, and/or abstracts of the Contribution.

Most read articles by the same author(s)

1 2 3 4 5 > >>