点击次数：

论文类型：期刊论文

发表时间：2016-11-25

发表刊物：PHYSICS LETTERS A

收录刊物：SCIE、Scopus

卷号：380

期号：45

页面范围：3766-3772

ISSN号：0375-9601

关键字：Phononic crystal; Band gap; Bragg scattering; Local resonance

摘要：A novel hybrid phononic crystal is designed to obtain wider band gaps in low frequency range. The hybrid phononic crystal consists of rubber slab with periodic holes and plumbum stubs. In comparison with the phononic crystal without periodic holes, the new designed phononic crystal can obtain wider band gaps and better vibration damping characteristics. The wider band gap can be attributed to the interaction of local resonance and Bragg scattering. The controlling of the BG is explained by the strain energy of the hybrid PC and the introduced effective mass. The effects of the geometrical parameters and the shapes of the stubs and holes on the controlling of waves are further studied. (C) 2016 Elsevier B.V. All rights reserved.