The invention belongs to the technical field of
underwater sound, and particularly relates to a reflection type
underwater sound metasurface design method for realizing
underwater sound regulation and control. On the basis of acoustic
surface impedance boundary conditions, an underwater acoustic metasurface unit for realizing theoretical acoustic
surface impedance is designed by adopting a
topological optimization mode, and the limitation of vibration
coupling of the underwater acoustic metasurface unit is introduced into a
topological optimization framework, so that the
coupling of
solid vibration of the metasurface is very effectively reduced, and the effectiveness of underwater acoustic metasurface design is ensured; therefore, the regulation and control of the underwater reflection
sound field are realized. According to the design mode provided by the invention, artificial participation is not needed, customization as required can be realized, the replaceability of the underwater acoustic metasurface unit is high, the designed underwater acoustic metasurface regulation and
control mode is flexible, a new scheme is provided for the design of the underwater acoustic metasurface, the practical application of the underwater acoustic metasurface in various fine and complex underwater
sound field control can be promoted; the invention has important application value in the
engineering fields of
seabed resource exploration, acoustic particle manipulation, medical
holographic imaging and the like.