Locally Resonant Gaps of Phononic Beams Induced by Periodic Arrays of Resonant Shunts  

作　　者：CHEN Sheng-Bing WEN Ji-Hong WANG Gang HAN Xiao-Yun WEN Xi-Sen 陈圣兵;温激鸿;王刚;韩小云;温熙森(Laboratory of Science and Technology on Integrated Logistics Support,National University of Defense Technology,Changsha 410073)

机构地区：[1]Laboratory of Science and Technology on Integrated Logistics Support,National University of Defense Technology,Changsha 410073

出　　处：《Chinese Physics Letters》2011年第9期166-169,共4页中国物理快报（英文版）

基　　金：by the National Natural Science Foundation of China under Grant Nos 50905182 and 50875255.

摘　　要：Periodic arrays of shunted piezoelectric patches are employed to control the propagation of elastic waves in phononic beams.Each piezo-patch is connected to a single resistance-inductance-capacitance shunting circuit.Therefore,the resonances of the shunting circuits will produce locally resonant gaps in the phononic beam.However,the existence of locally resonant gaps induced by resonant shunts has not been clearly proved by experiment so far.In this work,the locally resonant gap in a piezo-shunted phononic beam is investigated theoretically and verified by experiment.The results prove that resonances of shunting circuits can produce locally resonant gaps in phononic beams.

关 键 词：EXPERIMENT RESONANT LOCALLY 

分 类 号：O17[理学—数学]