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2000年报道的具有局域共振带隙的声学材料是声学超构材料的前身,也是最早实现的声学超构材料.同光学、电磁超构材料一样,近年来声学超构材料也引起了许多学者的研究兴趣.文章介绍了到目前为止声学超构材料的主要研究进展,内容包括含共振单元的声学超构材料的负有效声学参数(包括质量密度、体模量等)的实现,以及不含共振单元的声学超构材料的一些有效声学参数的确定等,最后对声学超构材料的可能应用进行了简单展望.
The acoustic material with local resonance band gap reported in 2000 is the predecessor of acoustic superconducting materials and the earliest realized superconducting materials.As with optical and electromagnetic superconducting materials, acoustical superconducting materials have also attracted many scholars The main research progress of the acoustical superconducting materials has been described in this paper. The contents include the realization of the negative effective acoustical parameters (including the mass density and the bulk modulus) of the acoustical superconducting materials with resonance units, Finally, some possible applications of acoustic superconducting materials are briefly discussed.