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International Journal of Advanced Engineering Application

ISSN: 3048-6807

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Metamaterial Acoustic Cloaks for Industrial Noise Control

Author(s):Priya S. Mehra1, Karan R. Bedi2, Ananya T. Sharma3

Affiliation: 1,2,3Department of Mechanical Engineering, Thapar Institute of Engineering & Technology, Patiala, Punjab, India

Page No: 18-21

Volume issue & Publishing Year: Volume 2 Issue 3,March-2025

Journal: International Journal of Advanced Engineering Application (IJAEA)

ISSN NO: 3048-6807

DOI: https://doi.org/10.5281/zenodo.17668115

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Abstract:
Industrial environments often face critical challenges associated with high-intensity noise, which can lead to health hazards, reduced worker productivity, and regulatory non-compliance. Traditional noise mitigation techniques, such as passive barriers, damping materials, and active noise cancellation, have inherent limitations in terms of effectiveness, spatial coverage, and adaptability. Metamaterial acoustic cloaks, engineered structures with tailored acoustic properties, offer a revolutionary approach for redirecting, absorbing, or suppressing sound waves in specific frequency ranges. By exploiting phenomena such as negative mass density, anisotropic acoustic impedance, and phononic band gaps, these cloaks can isolate noise sources without obstructing airflow or workspace accessibility. This paper reviews the principles, design strategies, and potential industrial applications of metamaterial acoustic cloaks. It also discusses fabrication challenges, performance optimization, and future directions for integrating these devices into large-scale industrial facilities for sustainable noise control

Keywords: Metamaterials, Acoustic cloaking, Industrial noise control, Phononic crystals, Sound absorption, Noise mitigation

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