Tri-Cell-p satellite honeycomb acoustic metamaterial for enhanced low-frequency sound absorption

Hongyu Yan, Suchao Xie, Kunkun Jing, Fengyi Zhang, Haiping Ding, Ministry of Education, Key Laboratory of Traffic Safety on Track , Central South University, Joint International Research Laboratory of Key Technology for Rail Traffic Safety , Central South University, Local Joint Engineering Research Center of Safety Technology for Rail Vehicle , Central South University

Journal of Vibration and Control

Published online on November 28, 2025

Abstract

Journal of Vibration and Control, Ahead of Print.
Low-frequency noise control is challenging, as traditional absorbers need large cavity depths. This study introduces a Tri-Cell-p Satellite Honeycomb Acoustic Metamaterial with P-shaped cavities and micro-perforations near cavity walls. Its acoustic ...