Research on bandgap property of a novel small size multi-band phononic crystal

Publication date: Available online 12 November 2018Source: Physics Letters AAuthor(s): Yake Dong, Hong Yao, Jun Du, Jingbo Zhao, Chao DingAbstractA novel small size multi-band gaps phononic crystal (hPC) composed of the periodic plumbum and aluminum mass has been investigated in this paper, we calculated the dispersion relations and the displacement fields with finite element method (FEM). The influences of the geometrical parameters and materials parameters on the band structure are further investigated. We studied the influence factors of band gap by the model of origin anti-resonance. There are many flat bands in the characteristic frequency curve. The band gap covers a large range in low frequency.

Source: Physics Letters A - November 14, 2018 Category: Physics Source Type: research