摘要
为了更有针对性地控制高速铁路轨道连续多波高低不平顺的容许偏差管理值,保证列车行驶的安全性和平稳性,建立车辆-轨道空间耦合动力分析模型,并加以验证,采用CRH380A型高速列车,将轨道高低不平顺简化为不同波长、不同幅值的连续正弦波进行动力仿真分析。根据行车安全性(轮重减载率)和乘坐舒适性(车体垂向振动加速度)确定敏感性波长以及适用于不同速度等级下连续多波高低不平顺的控制标准建议值(半峰值)。计算结果表明,10 m和12 m波长的连续多波高低不平顺对行车影响较大;连续多波高低不平顺控制标准取值受列车速度影响,速度越高控制标准越严格,速度在80 km/h(包含)以下取20 mm,速度等级80(不含)~120 km/h取14 mm,120(不含)~160 km/h取12 mm,160(不含)~200 km/h取11 mm,200(不含)~250 km/h取8 mm,250(不含)~350 km/h取5 mm,超出控制值后需及时处理。
In order to control more effectively the deviation limit of track continuous multi-wave longitudinal irregularity of high-speed railway and to ensure the safety and ride index of the train,the vehicle-track space coupling dynamic analysis model is established and verified.The dynamic simulation analysis is carried out with the high speed train of CRH380A and the continuous sine waves with different wavelengths and amplitudes instead of the track continuous multi-wave longitudinal irregularity.The sensitive wavelengths are calculated according to driving safety(Wheel load reduction rate)and ride comfort(Vertical vibration acceleration of car body),and the recommended values(half peak)applicable to different velocity classes are determined.The results show that the continuous multi-wave irregularity has greater influence on driving safety and ride comfort when the wavelengths are 10m and 12 m.The recommended values are affected by train speed.The higher the speed,the stricter the control standard.When the speed is under 80 km/h,the value is 20 mm;when the speed is 80(excluded)~120 km/h,the value is 14 mm;when the speed is 120(excluded)~160 km/h,the value is 12 mm;when the speed is 160(excluded)~200 km/h,the value is 11 mm;when the speed is 200(excluded)~250 km/h,the value is 8 mm;when the speed is 250(excluded)~300 km/h,the value is 5 mm.
作者
李国龙
杨飞
李建辉
张煜
严乃杰
LI Guolong;YANG Fei;LI Jianhui;ZHANG Yu;YAN Naijie(Infrastructure Inspection Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;China Railway Nanning Group Col.,Ltd.,Nanning 530029,China;Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)
出处
《铁道标准设计》
北大核心
2021年第5期38-43,共6页
Railway Standard Design
基金
中国国家铁路集团有限公司科技研究开发计划课题(K2019G010)
中国铁道科学研究院集团有限公司科技研究计划课题(2019YJ156)
中国铁道科学研究院集团有限公司基础设施检测研究所科技研究计划课题(2019JJXM26)。
关键词
高速铁路
高低不平顺
动力学仿真
敏感波长
安全性
舒适性
控制标准
high-speed railway
longitudinal irregularity
dynamic simulation
sensitive wavelength
safety
comfort
control standard
作者简介
李国龙(1991—),男,研究实习员,2018年毕业于中国铁道科学研究院桥梁与隧道工程专业,工学硕士,主要从事车-线及车-线-桥耦合动力仿真分析,轨道管理工作,E-mail:397438497@qq.com;通信作者:杨飞(1985—),男,副研究员,2011年毕业于中国铁道科学研究院铁道工程专业,工学硕士,主要从事数据分析和轨道管理工作,E-mail:13811807268@163.com。
