Metamaterial absorbers have been widely studied and continuously concerned owing to
their excellent resonance features of ultra‐thin thickness, light‐weight, and high absorbance …

Acoustic resonances in open systems, which are usually associated with resonant modes
characterized by complex eigenfrequencies, play a fundamental role in manipulating …

In this study, a composite meta-absorber with a flexible size is proposed, and a genetic
algorithm is used to optimize the geometric dimensions under normal incidence and free …

Sound-absorbing materials (SAMs) have attracted significant interest for more than a century
owing to their rich physical properties and extensive potential in acoustic engineering. This …

Acoustic metamaterial represents the synergism between wave physics and designed
geometric structures, aimed at novel acoustic properties. For the important functionality of …

This paper studies the dynamic properties of a 3D chiral mechanical metamaterial, which
largely depend on tacticity describing the connection forms of the chiral unit. Based on the …

Achieving broadband sound absorption in low-frequency ranges using thin acoustic
materials has been a long-standing and challenging problem in acoustics. When using the …

力学超材料是一类由人工微结构单元构筑的复合结构或复合材料, 具有天然材料所不具备的静
力学/动力学性能. 由于这些超常特性通常取决于微结构单元而非材料组分 …

In the past two decades, the research on acoustic metamaterials has flourished, which is
also benefited from the development of additive manufacturing technology. The exotic …

We develop a hierarchical acoustic metamaterial with ultra-broadband sound absorption
and promising applications at high temperatures as a super sound absorber. The proposed …