AERIALIST - Advanced Aircraft-Noise-Alleviation Devices Using Metamaterials

Project Team

Principal Investigator:

Dr. John Kennedy

Graduate Students:

Dr.  Luke Dowling

Dr. Lara Flanagan

Overview

The EU-funded AERIALIST project identified and developed breakthrough technologies based on metamaterials to achieve noise reduction targets outlined in the ACARE Flightpath 2050 strategy, Europe’s vision for aviation. Metamaterials can be defined as materials engineered to attain a response not available in nature and are typically characterised by a recurring structure at the macro or micro scale.

Consortium members built on current acoustic metamaterial theory by studying the effect of realistic aerodynamic flows to develop numerical methods that simulate the behaviour of acoustic metamaterials under aircraft operating conditions. AERIALIST also assessed the technical feasibility of noise reduction devices based on the concepts developed, proposing a roadmap towards their practical realisation.

Research Publications 

1. Zielinski TG, Opiela KC, Pawłowski P, Dauchez N, Boutin T, Kennedy J, Trimble D, Rice H, Van Damme B, Hannema G, Wróbel R. Reproducibility of sound-absorbing periodic porous materials using additive manufacturing technologies: Round robin study, Addit. Manuf. 36 (2020) 101564 [Internet]. 2020
2. Flanagan L, Heaphy D, Kennedy J, Leiba R, Rice H. Development of acoustic “meta-liners” providing sub-wavelength absorption. International Journal of Aeroacoustics. 2020 Oct;19(6-8):310-23.
3. Mao H, Rumpler R, Gaborit M, Göransson P, Kennedy J, O'Connor D, Trimble D, Rice H. Twist, tilt and stretch: From isometric Kelvin cells to anisotropic cellular materials. Materials & Design. 2020 Aug 1;193:108855.
4. Saini JS, Dowling L, Kennedy J, Trimble D. Investigations of the mechanical properties on different print orientations in SLA 3D printed resin. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 2020 Jun;234(11):2279-93.
5. Rice HJ, Kennedy J, Göransson P, Dowling L, Trimble D. Design of a Kelvin cell acoustic metamaterial. Journal of Sound and Vibration. 2020 Apr 28;472:115167.
6. Dowling L, Kennedy J, O'Shaughnessy S, Trimble D. A review of critical repeatability and reproducibility issues in powder bed fusion. Materials & Design. 2020 Jan 15;186:108346.
7. Kennedy J, Flanagan L, Dowling L, Bennett GJ, Rice H, Trimble D. The influence of additive manufacturing processes on the performance of a periodic acoustic metamaterial. International Journal of Polymer Science. 2019;2019(1):7029143.

Funding Agency

EU – Horizon 2020