2018 Jpn. J. Appl. Phys. 57 07LB01). The restricted cavity mode is easily formed between the hard boundaries with the increase of column radius, which provides a possible way for low-order vibration modes to open high-order band gaps. There exist mode inheritance and energy coupling between adjacent modes, which leads the band gap to flatten and anti-flatten. Moreover, the real-time adjustment of band gap frequency by external temperature field can be realized via introducing the temperature-sensitive material epoxy resin into the structure. The band gap frequency range can be effectively reduced by increasing the number of composite cylinder layers, while the multi-vibrator structure can generate multipole resonance coupling with traveling wave and finally open a complete band gap between high-order frequency bands. This work provides a theoretical reference for analyzing the low-frequency band gap mechanism of micron-scale surface phononic crystal."> - 必威体育下载

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    Tan Zi-Hao, Sun Xiao-Wei, Song Ting, Wen Xiao-Dong, Liu Xi-Xuan, Liu Zi-Jiang
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    • Abstract views:4615
    • PDF Downloads:79
    • Cited By:0
    Publishing process
    • Received Date:24 January 2021
    • Accepted Date:05 March 2021
    • Available Online:15 July 2021
    • Published Online:20 July 2021

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