人工晶体学报2018，Vol.47Issue(1)：1-8,8.
新型多重谐振结构声子晶体带隙特性研究
Band Gaps Properties of Novel Muti-resonant Phononic Crystal Structure
摘要
Abstract
This paper designs a new type of multiple resonant phononic crystal structure and an equivalent model for the vibration mode of the upper and lower bounded frequency is established.The formation mechanism and influence factors of the band gaps are analyzed through the finite element method and the reasonable effectiveness of the model is verified.The results show that the phononic crystal structure belongs to the locally resonant type, and can obtain two band gaps within the low-mid frequency.The mass of inner scatterer decided the starting frequency of first band gap,themass of outer scatterer decided the cut-off frequency of second band gap.Through the optimization of the scatterer mass,filling rate and elastic modulus of the cladding layer, it can control the upper and lower bound frequency of the band gaps.The results provide a reference for the structural design of phononic crystals.关键词
声子晶体/局域共振/带隙机理/有限元法Key words
phononic crystal/locally resonance/band-gap mechanism/finite element method分类
数理科学引用本文复制引用
张帅,郭书祥,姚宏,赵静波,蒋娟娜,张吉宁,贺子厚..新型多重谐振结构声子晶体带隙特性研究[J].人工晶体学报,2018,47(1):1-8,8.基金项目
国家自然科学基金(11504429) （11504429）
