铁道科学与工程学报2026，Vol.23Issue(8)：3579-3594,16.DOI:10.19713/j.cnki.43-1423/u.T20251687
高速铁路桥上新型声子晶体声屏障车致振动研究
Research on vehicle-induced vibration of novel phononic crystal sound barriers for rail transit on bridges
摘要
Abstract
With the continuous increase in the operating speed and frequency of high-speed railway trains,controlling the acoustic environment along the lines has become significant challenges.Installing noise barriers on both sides of the tracks is one of the most effective methods for mitigating vehicle-induced vibration and noise.Given the remarkable advantages of acoustic metamaterials and phononic crystals in sound insulation,the design of novel noise barriers based on phononic crystals can effectively enhance their acoustic performance.This approach is capable of satisfying the demands for acoustic environment quality control along high-speed railway lines.However,the transmission of vibration energy generated by moving trains would cause the sound barrier to vibrate,thereby affecting its service performance and noise reduction efficiency.Therefore,it is necessary to conduct a systematic study on the train-induced vibration issues of high-speed railway noise barriers.First,the prediction model for train-induced vibrations in existing vertical noise barriers on high-speed railway bridges was established,and the accuracy of the developed theoretical model was verified through field test.Based on this,a new prediction model for train-induced vibrations in phononic crystal noise barriers on bridges was developed,and the train-induced vibration characteristics of the novel phononic crystal noise barriers were investigated.The results indicate that the lateral vibration of the novel phononic crystal noise barrier is consistently stronger than its vertical vibration.Compared to the existing vertical noise barrier,the peak vertical vibration in the time domain at the shell position of the novel phononic crystal noise barrier is reduced by 36.77%,and its dominant vertical vibration frequency range is narrowed from 0―120 Hz to 0―90 Hz.The height of the phononic crystal unit cell significantly influences the vibration of the novel barrier.Therefore,unit cells with lower heights and multi-unit panel configurations should be adopted in the novel phononic crystal noise barrier,as this strategy holds significant advantages in mitigating the train-induced vibration characteristics of the noise barrier.关键词
高速铁路/高架线路/声屏障/声子晶体/车致振动Key words
high-speed railway/elevated lines/sound barrier/phononic crystal/vehicle-induced vibration分类
交通工程引用本文复制引用
张小安,杨曼曼,徐磊,刘虎兵,何中伟,翁蕴晗..高速铁路桥上新型声子晶体声屏障车致振动研究[J].铁道科学与工程学报,2026,23(8):3579-3594,16.基金项目
中国国家铁路集团有限公司科技研究开发计划项目(L2024G008) （L2024G008）
国家自然科学基金资助项目(52362049,52578526) （52362049,52578526）
甘肃省科技计划资助项目(25JRRA158) （25JRRA158）
中国中铁股份有限公司科技研究开发计划项目(策源地2025-专项-03) （策源地2025-专项-03）
