噪声与振动控制2025，Vol.45Issue(3)：262-268,7.DOI:10.3969/j.issn.1006-1355.2025.03.041
基于声子晶体理论的轨道减振层低频隔振设计研究
Low-frequency Vibration Isolation Design of Track Damping Layer Based on Phononic Crystal Theory
摘要
Abstract
At present,the influence of low-frequency vibration caused by urban rail transit on the residents and the en-vironment along the line has become one of the focuses in the field of rail transit technology in China.Therefore,it is neces-sary to improve the vibration isolation performance of the track structure damping pad.In order to improve the low-frequen-cy vibration isolation effect of the damping pads,this paper proposed a new phononic crystal structure applied to the damp-ing pad of track structure based on the local resonance mechanism.The finite element method was used to calculate the band gap characteristics,characteristic modes and vibration transmission characteristics of the new phononic crystal,and the influ-ence of the cell structure size parameters of the new phononic crystal on its band gap characteristics was analyzed.The re-search shows that the proposed new phononic crystal structure can produce a good vibration isolation effect in the low fre-quency range of 1-80 Hz.Therefore,the application of phononic crystal structure to the damping pad of track structure can improve the low-frequency vibration isolation performance of the damping pads.关键词
振动与波/城市轨道交通/减振垫/声子晶体/带隙特性/隔振Key words
vibration and wave/urban rail transit/damping pad/phononic crystals/band gap characteristics/vibration isolation分类
通用工业技术引用本文复制引用
王学宗,张小安,杨力,张晓芸,曹兴潇..基于声子晶体理论的轨道减振层低频隔振设计研究[J].噪声与振动控制,2025,45(3):262-268,7.基金项目
国家自然科学基金资助项目(52362049) （52362049）
甘肃省自然科学基金资助项目(22JR5RA344,22JR11RA152) （22JR5RA344,22JR11RA152）
甘肃省教育厅青年博士基金资助项目(2023QB-037) （2023QB-037）
兰州市科技计划资助项目(2022-ZD-131) （2022-ZD-131）
中央引导地方科技发展资金资助项目(22ZY1QA005) （22ZY1QA005）
