L'objet de la thèse est l'étude de la propagation d'ondes de cisaillement cohérentes dans un
mi-lieu élastique contenant une dispersion de billes denses. Dans ce système existent des …

Optimized topology of bi-material acoustic metamaterial lattice plates is studied for
maximized locally resonant bandgap of flexural guided waves. Optimized layout of the two …

Lattice metamaterials are artificially engineered materials that are composed of periodic
cellular microstructures. They possess unusual physical properties that are not commonly …

(57) ABSTRACT A method, system, and apparatus for fabricating an acoustic metamaterial
is provided. In an embodiment, a method for fabricating an acoustic metamaterial includes …

A method and apparatus for attenuating acoustic waves is provided. A lattice is formed with
a plurality of support struts. A plurality of resonating struts are formed extending between the …

Good acoustical behavior is one of the most important factor in the light-weight design. The
acoustic metametamaterials are promising solutions to achieve the improvements in this …

抄録 This research shows a fundamental study for the design of acoustic metasurface
composed of acoustic media and multi-elastic-material. Topology optimization method that …

抄録 This paper proposed a topology optimization method to realize acoustic cloaking by
minimizing scattering waves around a cloaked cylindrical obstacle placed in unbounded air …