STUDY ON VIBRATION ISOLATION PERFORMANCE OF INTELLIGENT PERIODIC STRUCTURE FOR URBAN VIADUCT

摘要：

　　In this paper,cement-based piezoelectric composite material is introduced into the periodic structure.A type of one-dimensional phononic crystal structure was proposed to overcome the difficulty of opening the low-frequency band gap.By the finite element method,the band gap structure was calculated.The influencing factors of the band gap were analyzed.The results show that the lower the density of hard clay,the higher the cut-off frequency of the band gap,while the higher the density of cement-based piezoelectric composite material,the lower the starting frequency of the band gap.The width of band gap also closely related to the lattice constant of the structure and the filling rate of material.

关键词： Cement-based piezoelectric composite material Band gap Low frequency

作者: Peng ZHAO Li-li YUAN Zhong-ting YE Bing WANG

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

会议类型: 国际会议

会议名称: The 2019 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2019(第14届)全国压电和声波理论及器件技术研讨会)

会议地点: 石家庄

会议语种:英文

页码: 498-502

在线出版日期: 2019-11-01（万方平台首次上网日期，不代表论文的发表时间）