PROPAGATION OF ELASTIC WAVES IN ONE-DIMENSIONAL PERIODIC PIEZOELECTRIC LAYERED STRUCTURES

摘要：

　　In this paper, we investigate the characteristics of the elastic waves in one-dimensional layered structures which consisting of a periodic elastic/piezoelectric/elastic layer bonded perfectly to a thin elastic substrate.The explicit formulations of elastic wave dispersion relations in such layered structure with consideration of electrically open and shorted cases are derived.The band structures are calculated by using the finite element method (FEM).From the result, we can find the band gaps are sensitive to the width of piezoelectric material, where they become wider when the width of piezoelectric material becomes larger;the piezoelectric effects benefit the opening of the complete bandgaps.The analytical method and the results can be useful for the application of vibration isolation in low frequency structures.

关键词： elastic waves periodic layered structures band gap low frequency

作者: Zhan-hua CAI Li-li YUAN Guang-ying YANG Jian-ke DU Ji WANG Ting-feng MA

作者单位: School of Civil Engineering and Environment, Ningbo University, Ningbo 315211, China School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China

会议类型: 国际会议

会议名称: The 2017 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2017全国压电和声波理论及器件技术研讨会)

会议地点: 成都

会议语种:英文

页码: 416-419

在线出版日期: 2017-10-27（万方平台首次上网日期，不代表论文的发表时间）