An origami longitudinal-torsional wave converter

被引：20

作者：

Xu, Zhu-Long ^{[1
]}

Wang, Dan-Feng ^{[1
]}

Tachi, Tomohiro ^{[3
]}

Chuang, Kuo-Chih ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Sch Aeronaut & Astronaut, Inst Appl Mech, Key Lab Soft Machines & Smart Devices Zhejiang Pr, Hangzhou 310027, Peoples R China

[2] State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China

[3] Univ Tokyo, Grad Sch Arts & Sci, Tokyo, Japan

来源：

EXTREME MECHANICS LETTERS | 2022年 / 51卷

基金：

中国国家自然科学基金;

关键词：

Origami; Wave mode conversion; Elastic waves; Torsional waves; DESIGN;

D O I：

10.1016/j.eml.2021.101570

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Wave mode conversion has received great attention in the past few years. In this work, we propose a Kresling origami wave-mode converter which can transform the longitudinal waves of one rod to hybrid or near-pure torsional waves in the other one. Both the converted transient and steady-state wave propagation as standing waves in the proposed rod system are studied with a special focus on the frequency-dependent wave-mode contributions. With a definition of a frequency-dependent conversion ratio of longitudinal wave to torsional wave (L-T Ratio), we investigate the generation of the combined or near-pure torsional waves. The longitudinal-torsional wave conversion frequencies are tightly associated with the initial geometrical parameters of the Kresling origami. An experimental system based on optical fiber Bragg gratings (FBGs) is set up to verify the Kresling-ori wave converter. The longitudinal-torsional wave converter based on the origami engineering has potential applications in wave manipulation, wave energy distributing, or unidirectional wave transmission. (C) 2021 Elsevier Ltd. All rights reserved.

引用

页数：7

共 28 条

[1]

Achenbach J. D., 1973, WAVE PROPAGATION ELA, V16

[2]

Al-Budairi H., 2011, APPL MECH MAT UNPUB

[3] A design approach for longitudinal-torsional ultrasonic transducers [J].