中国机械工程2025，Vol.36Issue(9)：1925-1933,9.DOI:10.3969/j.issn.1004-132X.2025.09.003
针对地铁车辆晃动的轨道几何不平顺敏感波长分析
Sensitive Wavelength Analyses of Track Geometryic Irregularities for Metro Vehicle Swayings
摘要
Abstract
Aiming at the problems of LIMs metro vehicle lateral swayings,correlation analyses be-tween the characteristics of track irregularities and the stability indicators of the vehicles were studied.The dynamics software SIMPACK was used to establish a dynamics model of the LIM vehicles.The influences of track irregularity on the vehicle dynamics performances were simulated and the sensitive wavelength ranges of track geometric irregularity for the LIMs vehicle swayings were analyzed.Results show that the low-frequency lateral swaying of carbody occurs at about 2 Hz when the vehicles are travelling at high speed in a straight line,which is related to the lateral track periodic irregularity with wavelengths of 10～13 m.The suspension mode frequency of the vehicles determines the sensitive wavelength range of different track irregularities.Alignment irregularity has the most significant influences on the wheel-rail lateral forces and the lateral accelerations of the carbodies.For the carbody lateral swayings,the sensitive wave-lengths of alignment irregularity are as 10～13 m and 17～20 m.The sensitive wavelengths of vertical ir-regularity are as 5～8 m and 12～17 m.The sensitive wavelengths of both twist and crosslevel irregularity are as 5～8 m and 15～20 m.The excitation frequency of track irregularity with a sensitive wavelength band of 10～13 m is close to the frequency of the upper sway mode of the vehicles.The excitation fre-quency of track irregularity with a sensitive wavelength band of 15～20 m is close to the frequencies of pitch mode and roll mode of the vehicles.关键词
直线电机/车辆动力学性能/轨道几何不平顺/敏感波长/横向晃动Key words
linear induction motor(LIM)/vehicle dynamics performance/track geometric irregular-ity/sensitive wavelength/lateral swaying分类
交通工程引用本文复制引用
齐英杰,李伟,刘增华,周亚波,温泽峰..针对地铁车辆晃动的轨道几何不平顺敏感波长分析[J].中国机械工程,2025,36(9):1925-1933,9.基金项目
国家自然科学基金(52002343) （52002343）
四川省科技计划(2024NSFSC0160,2023YFQ0091) （2024NSFSC0160,2023YFQ0091）
