Bandgap Properties in Simplified Model of Locally Resonant Phononic Crystal Composite Double Panel Structure

被引：0
|
作者：
Qian D. [1 ]
Shi Z. [2 ]
机构：
[1] College of Civil Engineering, Suzhou University of Science and Technology, Suzhou
[2] State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis | 2019年 / 39卷 / 04期
关键词：
Bandgap property; Improved plane wave expansion; Phononic crystal double panel structure; Simplified model;
D O I：
10.16450/j.cnki.issn.1004-6801.2019.04.029
中图分类号：
学科分类号：
摘要：
The simplified model of locally resonant phononic crystal composite double panel structure is proposed based on the widely researched locally resonant phononic crystal plates, and an improved plane wave expansion method is applied to calculate the structure. Numerical results and further analyses demonstrate that a complete band gap is opened in the low frequency region. The torsional spring, size and viscidity of soft material have obvious effects on the band gap, which cannot be influenced by the rotational inertia. All the results are expected to be of theoretic significances and engineering application prospects in the field of vibration and noise reduction. © 2019, Editorial Department of JVMD. All right reserved.
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页码：884 / 891
页数：7
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