Independent density & modulus tuning
By tuning the side number and material of hollow polygons, it pioneers independent control of mass density and bulk modulus underwater, offering an impedance-matched fluid solution for practical underwater acoustic devices.
Bi, Yafeng · Ping, Zhou · Jia, Han · Lu, Fan · Yang, Yuzhen · Yimeng, Zhang · Zhang, Peng · Yang, Jun
Materials and Design 2023
Mass density and bulk modulus independently manipulated by adjusting side number and material of hollow polygons
Impedance-matched gradient index lens with same impedance but different sound velocities designed and demonstrated
Impedance-matched underwater acoustic carpet cloak designed and demonstrated