Abstract
In this paper, the band structure and transmission characteristics of asymmetric locally resonant complex phononic crystals are studied. Based on the Bragg band gap mechanism, an asymmetric local resonance element was designed and the structural parameters were optimized to obtain a wide band gap. The results show that the range of the first complete band gap is obviously affected by the size of the scatterer, the radius and height of the locally resonant cylinder and the position of the cylinder. At the same time, the transmission characteristics of the 10*10 periodic arrangement structure are calculated to verify the accuracy of the energy band structure.
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