Generating ultra wide low-frequency gap for transverse wave isolation via inertial amplification effects

被引：80

作者：

Li, Jingru ^{[1
]}

Li, Sheng ^{[1
,2
]}

机构：

[1] Dalian Univ Technol, Fac Vehicle Engn & Mech, Sch Naval Architecture, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China

[2] Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai 200240, Peoples R China

来源：

PHYSICS LETTERS A | 2018年 / 382卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Transverse wave; Low-frequency gap; Ultra-wide bandwidth; Inertial amplification; PERIODIC ELASTIC COMPOSITES; ACOUSTIC BAND-STRUCTURE; PHONONIC CRYSTAL; FLEXURAL WAVE; STOP BANDS; PROPAGATION; BEAMS; FOUNDATIONS; SCATTERING; BEHAVIOR;

D O I：

10.1016/j.physleta.2017.11.023

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Low-frequency transverse wave propagation plays a significant role in the out-of-plane vibration control. To efficiently attenuate the propagation of transverse waves at low-frequency range, this letter proposed a new type phononic beam by attaching inertial amplification mechanisms on it. The wave propagation of the beam with enhanced effective inertia is analyzed using the transfer matrix method. It is demonstrated that the low-frequency gap within inertial amplification effects can possess much wider bandwidth than using the local resonance method, thus is more suitable for designing applications to suppress transverse wave propagation. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：241 / 247

页数：7

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