Active structural acoustic illusions

被引：3
|
作者：
Eggler, Daniel [1 ]
Kessissoglou, Nicole [1 ]
机构：
[1] Univ New South Wales, Sch Mech & Mfg Engn, Sydney, NSW 2052, Australia
来源：
SCIENTIFIC REPORTS | 2020年 / 10卷 / 01期
关键词：
SOUND; RADIATION; CLOAKING;
D O I：
10.1038/s41598-020-66398-8
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We present active manipulation of the structural vibrations of an elastic body to generate an acoustic illusion. The resultant illusion misrepresents the nature, size and number of objects in the exterior acoustic domain. We demonstrate our technique, herein termed active structural acoustic illusion, using an elastic cylindrical shell. The radial motion of the shell at its cavity resonance frequencies is actively modified using localised mechanical forces. Acoustic illusions are generated to resemble the scattered acoustic field by one or more rigid cylinders of different size and location.
引用
收藏
页数：6
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