Design, Modeling, and Experimental Validation of Passive Acoustic Metamaterial Absorbers for Aircraft Noise Control

Institut

Lehrstuhl für Akustik mobiler Systeme (TUM-ED)

Typ

Masterarbeit /

Inhalt

experimentell / theoretisch / konstruktiv /  

Beschreibung

Vibration and noise control are critical research areas across multiple industries, including aerospace, aviation, and automotive engineering. Mechanical vibrations and the resulting acoustic emissions can strongly affect system performance, operational safety, and structural integrity. Effective mitigation of these phenomena is therefore essential for ensuring reliable and efficient operation of complex engineering systems.

Passive acoustic and vibroacoustic metamaterials offer a promising approach to noise and vibration reduction by leveraging carefully engineered structural designs to achieve unique properties, such as negative effective density or stiffness. Unlike active systems, these materials do not require external power or adaptive control, relying instead on their geometry and material composition to target specific frequency ranges. By controlling vibrations and acoustic waves at their source, passive metamaterials provide robust, low-maintenance solutions for reducing unwanted noise in challenging environments.

The aim of this Master’s project is to design, numerically model, and experimentally validate three passive acoustic and vibroacoustic metamaterial absorbers optimized for distinct application scenarios, including helicopter cabins and aircraft engines. The study will focus on plate- and membrane-based but also further metamaterials designs, seeking to maximize sound and vibration absorption efficiency across relevant frequency ranges while ensuring structural feasibility. The resulting insights are expected to advance the understanding of passive metamaterials for practical noise and vibration control in demanding aerospace applications.

Voraussetzungen

• Good knowledge in engineering mechanics and mathematics
• Basic knowledge in Dynamics of Structures
• Basic knowledge in FEM/COMSOL simulations
• High interest in understanding of mathematical/theoretical equations

Industriepartner

Yes

Möglicher Beginn

sofort

Kontakt

Mert Dogu, M.Sc.
Raum: MW 1536
Tel.: 089 289 55134
mert.dogutum.de

Ausschreibung