Sound pressure level in aircraft cabins are similar to a noisy work place. One of the most disturbing noise for passengers is related to the engine fan. This noise is mainly tonal and in the low frequency range. Reducing this noise for the comfort of passengers is an important and challenging issue in aeronautics. One way to reduce cabin noise is to use efficient thermal acoustic insulation blankets between the interior trim panel and the exterior shell. However, conventional acoustic materials have reached their limits in terms of soundproofing, and non-conventional ones, such as metamaterials need to be industrialized.

This project aims scientific and technological breakthroughs in the development and validation of new primary / secondary thermo-acoustic insulation blankets used in aircraft. One component of these blankets will be a novel acoustic insulation metamaterial (AIMM). Its integration in the thermo-acoustic insulation blankets will show sound insulation capacity that goes beyond conventional sound insulation materials, without deteriorating the overall thermal insulation of the blankets. As for the commercial novelties, the project will validate the integrated AIMM technology. This will ensure potential viability of industrialization and commercialization of the first AIMM based technology for aerospace applications.

Project Objectives

  • improved aircraft interior noise reduction in the low frequency range
  • lightweight design with only a little additional mass compared to conventional insulation materials
  • clearance test for fire, smoke and toxicity of the material combination according to ASTM E1678-15
  • thermal resistance comparable to conventional thermal-acoustic insulation
  • verification of the prototype in a relevant environment on aircraft fuselage level


The complementary partnership includes Canadian and German Companies and Scientific Institutions.




Hamburg University of Applied Science


Mecanum Inc.

National Research Council Canada

University Sherbrooke

ZAL Center of Applied Aeronautical Research

Get in Contact


Dr.-Ing. Kay Kochan (German Project Coordinator)

ZAL Center of Applied Aeronautical Research
Hein-Saß-Weg 22, 21129 Hamburg, Germany

website: http://www.zal.aero
email: kay.kochan(at)zal.aero
phone: +49 (0) 40 248 595-122

Pr. Raymond Panneton (Canadian Project Coordinator)

Mecanum Inc.
suite 202, 1060 Rue de Cherbourg, Sherbrooke, QC J1K 1H2, Canada

website: http://www.mecanum.com
email: raymond.paneton(at)mecanum.com
phone: +1 819 346-5666


The project is financially supported by German and Canadian granting agencies.