列车-轨道耦合系统随机不平顺动力响应分析
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摘要
对在我国高速铁路上应用较广泛的CRH3型列车和CRTSⅡ型无砟轨道进行了精确的动力学分析.首先,对列车的车体、转向架、轮对3个主要部分进行重点分析,建立列车动力学模型;然后,以CRTSⅡ作为轨道研究对象,建立轨道动力学模型;之后,运用改进的动力分析数值积分求解算法,快速精确地获得了列车-轨道耦合振动输出;同时,将被忽略的轮轨接触点的精确定位,及轨道的衰减振动引入到列车-轨道耦合模型中,模型获得了与实际值接近的模拟结果.
The precise kinetic analysis is conducted for CRH3 train and CRTSⅡ ballastless track which are widely applied to actual structure of high-speed railway system.Firstly,the train kinetic model is built by emphatically analyzing the body,bogie and track unit.Then,the track kinetic model is built through studying the CRTSⅡ track,and improved numerical integration algorithm of the dynamic analysis is used to obtain a more precise train-track coupling vibrating output.Meanwhile,the precise positioning of the wheel-rail contact point ignored in conventional modeling,and track attenuation vibration are introduced into the train-track coupling model.The simulated results obtained from the model approach the actual values.
The precise kinetic analysis is conducted for CRH3 train and CRTSⅡ ballastless track which are widely applied to actual structure of high-speed railway system.Firstly,the train kinetic model is built by emphatically analyzing the body,bogie and track unit.Then,the track kinetic model is built through studying the CRTSⅡ track,and improved numerical integration algorithm of the dynamic analysis is used to obtain a more precise train-track coupling vibrating output.Meanwhile,the precise positioning of the wheel-rail contact point ignored in conventional modeling,and track attenuation vibration are introduced into the train-track coupling model.The simulated results obtained from the model approach the actual values.
引文
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[5]利远翔,雷晓燕,张斌.高速列车-无砟轨道-桥梁耦合系统振动特性分析[J].华东交通大学学报,2010,27(3):14-20,26.LI Yuan-xiang,LEI Xiao-yan,ZHANG Bin.Characteristic analysis of vibration for coupling system of high-speed train-ballastless track-bridge system[J].Journal of East China Jiaotong University,2010,27(3):14-20,26.(in Chinese)
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[7]王伯铭.高速动车组总体及转向架[M].成都:西南交通大学出版社,2008.WANG Bo-ming.High-speed Motor Train Set Overall and Bogie[M].Chengdu:Southwest Jiaotong University Press,2008.(in Chinese)
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[11]郭泽英,李青宁.Newmark-精细积分方法的选择及稳定性[J].世界地震工程,2008,24(3):107-111.GUO Ze-ying,LI Qing-ning.Integration formula selection and stability for Newmark-precision direct integral method[J].World Earthquake Engineering,2008,24(3):107-111.(in Chinese)
[2]顾永辉.轨道车辆垂向振动性能研究及减振器阻尼参数选择[D].上海:上海交通大学,2008.GU Yong-hui.Research on the vibration of vertical rail vehicle and damper damping selecting[D].Shanghai:Shanghai Jiao Tong University,2008.(in Chinese)
[3]陈果,翟婉明,左洪福.仿真计算比较我国干线谱与国外典型轨道谱[J].铁道学报,2001,23(3):82-87.CHEN Guo,ZHAI Wan-ming,ZUO Hong-fu.Comparing track irregularities PSD of Chinese main lines with foreign typical lines by numerical simulation computation[J].Journal of the China Railway Society,2001,23(3):82-87.(in Chinese)
[4]贾梦雪.桥上CRTSⅡ型板式无砟轨道纵向力影响因素分析[D].成都:西南交通大学,2011.JIA Meng-xue.Influential factors analysis of longitudinal force on bridges with CRTSⅡ-Type slab ballastless track[D].Chengdu:Southwest Jiaotong University,2011.(in Chinese)
[5]利远翔,雷晓燕,张斌.高速列车-无砟轨道-桥梁耦合系统振动特性分析[J].华东交通大学学报,2010,27(3):14-20,26.LI Yuan-xiang,LEI Xiao-yan,ZHANG Bin.Characteristic analysis of vibration for coupling system of high-speed train-ballastless track-bridge system[J].Journal of East China Jiaotong University,2010,27(3):14-20,26.(in Chinese)
[6]蔡成标.高速铁路列车-线路-桥梁耦合振动理论及应用研究[D].成都:西南交通大学,2004.CAI Cheng-biao.Theory and application of traintrack-bridge coupling vibration in hige-speed railways[D].Chengdu:Southwest Jiaotong University,2004.(in Chinese)
[7]王伯铭.高速动车组总体及转向架[M].成都:西南交通大学出版社,2008.WANG Bo-ming.High-speed Motor Train Set Overall and Bogie[M].Chengdu:Southwest Jiaotong University Press,2008.(in Chinese)
[8]CHEN Chuan,LANG Cheng-lian.Simulation method for train longitudinal dynamic locomotion[C]//Proceedings of the 4th Beijing International Conference on System Simulation and Scientific Computing.Shanghai:Chinese Association for System Simulation(CASS),1999.
[9]李斌,刘学毅.客运专线铁道车辆随机振动特性[J].西南交通大学学报,2010,45(2):191-195,212.LI Bin,LIU Xue-yi.Random vibration property of high-speed railway vehicle in passenger dedicated line[J].Journal of Southwest Jiaotong University,2010,45(2):191-195,212.(in Chinese)
[10]Guo Z Y,Li Q N,Zhang S J.Direct Newmarkprecision integration method of seismic analysis for short-leg shear wall structure[C]//Proceedings of the Ninth International Symposium on Structural Engineering for Young Experts.Beijing:Science Press,2006:180-184.
[11]郭泽英,李青宁.Newmark-精细积分方法的选择及稳定性[J].世界地震工程,2008,24(3):107-111.GUO Ze-ying,LI Qing-ning.Integration formula selection and stability for Newmark-precision direct integral method[J].World Earthquake Engineering,2008,24(3):107-111.(in Chinese)
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