Study on Mechanism of One-Dimensional Phononic Crystals with Locally Resonant Structures
Comprehensive study is performed for the one-dimensional phononic crystals with locally resonant structures mechanism and Bragg scattering mechanism. Found locally resonant mechanism is same as Bragg scattering mechanism on one-dimension phononic crystal. The reasons of producing lower frequency band gap are still stiffness decrease and quality increase. So the theory that locally resonant structure is better than Bragg scattering in low frequency vibration reduction is inexact.
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Z. F. Song et al., "Study on Mechanism of One-Dimensional Phononic Crystals with Locally Resonant Structures", Advanced Materials Research, Vols. 287-290, pp. 650-653, 2011