Topological valley metamaterial in classical wave systems has shown great potential for
manipulating electromagnetic, acoustic, and elastic waves due to the defect-immune and …

To address the challenge of suppressing extremely-low frequency vibration and noise in
precision instruments and equipment, a novel non-contact metamaterial beams is proposed …

To mitigate surface waves in ambient vibration, a novel broadband elastic metasurface is
proposed by periodically burying the layered in-filled pipes below the ground surface. The …

Higher-order topological insulators (HOTIs), an extended concept of traditional first-order
topological insulators, are capable of hosting multidimensional topological states and …

Ultralight hierarchical metamaterial is a type of promising structure in aerospace and
transportation applications owing to the high stiffness/strength to density ratio. Though some …

The next-nearest-neighbour (NNN) hop**s can induce many unique topological
phenomena but are rarely considered in acoustics. This work investigates the higher-order …

Novel 2D tri-chiral metastructures with mass inclusion are proposed in this work. Compared
to conventional 2D honeycomb metastructures, these superior metastructures have a wide …

Vibration isolation has always been a flourishing subject with practical interest because it
helps in reducing structure vibration that has serious effects on moving vehicles and …

Novel membrane-type topological metamaterials induced by material difference are
investigated in this work. Different from previous common method to break spatial inversion …