噪声与振动控制2019，Vol.39Issue(2)：105-109,201,6.DOI:10.3969/j.issn.1006-1355.2019.02.020
地铁小半径曲线段上列车车内振动测试与特性
Measurement and Characteristics Analysis of Interior Vibration of Metro Vehicles in Small Radius Curved Sections
摘要
Abstract
In the metro line, vibration acceleration of the train traveling in the small radius curved section is generally greater than that in the straight section. In order to study the spectral characteristics of the vibration in the metro train traveling in the small radius curved section, an underground tunnel section with a radius of 350 m is selected for testing. The steel spring floating board monolithic track bed, Cologne egg fasteners and DT-III fasteners are placed in the section respectively. The effects of various sensor mounting methods, such as double-sided tape and screws, on the measurement results are analyzed. The vertical and lateral vibration accelerations of the carriage floor at three different times of the day are measured using DASP V11 software, and Z-level and X-level analysis is performed. The results show that the peak frequencies of the vertical vibration level corresponding to the steel spring floating board monolithic track bed, Cologne egg fasteners and DT-III fastener segments are 8 Hz and 63 Hz,3.15 Hz、8 Hz and 63 Hz, 50 Hz and 100 Hz, respectively; The peak frequencies of the lateral vibration level are 63 Hz, 63 Hz, 50 Hz and 100 Hz, respectively.The vibration acceleration of the vehicle floor in the monolithic track bed section and Cologne egg fasteners section are larger than that in the DT-III fasteners sections. This test results provide some references for vibration and noise reduction measures, as well as some support for the study of the floor vibration characteristics for the small radius curved segments.关键词
振动与波/地铁/小半径曲线/车内振动加速度/测试方法/频谱特性分析Key words
vibration and wave/ metro/ small radius curve/ interior vibration acceleration/ test method/ analysis of spectrum characteristics分类
交通工程引用本文复制引用
刘福金,王安斌,谢蓥松,戚柳飞..地铁小半径曲线段上列车车内振动测试与特性[J].噪声与振动控制,2019,39(2):105-109,201,6.基金项目
上海市科学技术委员会专项资金资助项目(17930501100) （17930501100）
