摘要
为了准确研究高频激励下的车辆振动响应，综合考虑了车辆主要部件和轨道弹性振动的影响。对于车辆模型，采用刚柔耦合动力学理论来模拟车体、构架、轴箱和轮对；轨道模型包括基于Timoshenko梁模型的弹性钢轨和基于有限元理论和模态叠加法的轨道板。通过采用单一正弦函数来描述轨道波磨不平顺，分析了钢轨波磨激励对车辆系统动态响应的影响，同时调查了车速、钢轨波磨波长和波深对车辆系统振动响应的影响规律。结果表明：在钢轨波磨作用下，轮轨相互作用力和车辆系统响应均出现了周期性波动；轮轨力随着速度的增加先缓慢增加，然后再急剧增加，最后又保持缓慢增长趋势；钢轨波磨在一定速度下能导致构架端部和轴箱端盖发生比较严重的弹性振动；轮轨力随着钢轨波磨波深的增加而变大，随着其波长的增加而减小。
Abstract
In order to analyse the vehicle vibration responses due to high frequency excitations accurately, the influences of the elastic deformation of main vehicle parts and tracks were comprehensively considered. Based on the rigid-flexible coupling dynamics theory, main components in a vehicle dynamics model such as carbody, bogie frame, axlebox and wheelset were modeled as flexible bodies. And the slab track was treated as a flexible structure system where the rails were built as two discretely supported continuous beams, and the slab was modeled using 3D solid finite element method. By using a single sine function to describe rail corrugation, its influences on vehicle dynamic responses were analyzed. Also the influences of the speed, wavelength and depth of rail corrugation on vehicle vibration behaviors were investigated. The numerical simulation results indicate that rail corrugation can result in the periodical oscillations of wheel/rail interaction forces and vehicle dynamic responses. The wheel/rail force increases slowly with the increase of speed at first, then grows sharply, but when the speed exceeds a certain value, the force has a slow increase trend again. At a certain speed the serious elastic vibrations of the bogie frame end and axlebox cover can occur due to rail corrugation. The wheel/rail force increases with the increase of the rail corrugation depth, but decreases with the increase of the rail corrugation wavelength.
关键词
高速车辆 /
钢轨波磨 /
振动 /
刚柔耦合 /
动力学
{{custom_keyword}} /
Key words
high-speed vehicle /
rail corrugation /
vibration /
rigid-flexible coupling /
dynamics
{{custom_keyword}} /
刘国云1, 2，曾 京1，张波2.
钢轨波磨对高速车辆振动特性的影响[J]. 振动与冲击, 2019, 38(6): 137-143
LIU Guoyun1,2，ZENG Jing1，ZHANG Bo2.
Influence of rail corrugation on high-speed vehicle vibration performances[J]. Journal of Vibration and Shock, 2019, 38(6): 137-143
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 姜子清，司道林，李伟，等. 高速铁路钢轨波磨研究[J]. 中国铁道科学，2014，35（4）：9-14.
JIANG Ziqing，SI Daolin，LI Wei，et al. Research 0n Rail Corrugation of High Speed Railway[J]. China Railway Science，2014，35（4）：9-14.
[2] 谷永磊，赵国堂，金学松，等. 高速铁路钢轨波磨对车辆-轨道动态响应的影响[J]. 中国铁道科学，2015，36（4）：27-31.
GU Yonglei，ZHAO Guotang，JIN Xuesong，et al. Effects of Rail Corrugation of High Speed Railway on Vehicl-Track Coupling Dynamic Response[J]. China Railway Science，2015，36（4）：27-31.
[3] 龚积球等编著. 轮轨磨损[M]. 北京：中国铁道出版社，1987.
[4] 金学松，李霞，李伟，等. 铁路钢轨波浪形磨损研究进展[J]. 西南交通大学学报，2016，51（2）：264-273.
JIN Xuesong，LI Xia，LI Wei，et al. Review of Rail Corrugation Progress[J]. Journal of Southwest Jiaotong University，2016，51（2）：264-273.
[5] GRASSIE S. Rail corrugation: characteristics，causes，and treatments[J]. Journal of Rail and Rail Transit，2009，223（6）：581-596.
[6] TORSTENSSON P，NIELSEN J. Monitoring of rail corrugation growth due to irregular wear on a railway metro curve[J]. Wear，2009,267（1-4）：556-561.
[7] NIELSEN J. Numerical prediction of rail roughness growth on tangent railway tracks[J]. Journal of Sound and Vibration，2003，267（3）：537-548.
[8] VILA P，FAYOS J，BAEZA L. Simulation of the evolution of rail corrugation using a rotating flexible wheelset model[J]. Vehicle System Dynamics，2011，49（11）：1749-1769.
[9] LING L，LI W，SHANG H. Experimental and numerical investigation of the effect of rail corrugation on the behaviour of rail fastenings [J]. Vehicle System Dynamics，2014，52（9）：1211-1231.
[10] Zhao X，Wen Z，Wang F，et al. Modeling of high-speed wheel-rail rolling contact on a corrugated rail and corrugation development[J]. Journal of Zhejiang University- Science A，2014，15（12）：946-963.
[11] 温泽峰. 钢轨波浪形磨损研究[D]. 成都：西南交通大学博士论文，2006.
[12] 李伟，曾全君，朱士友，等. 地铁钢轨波磨对车辆和轨道动态行为的影响[J]. 交通运输工程学报，2015，15（1）：34-42.
LI Wei，ZENG Quanjun，ZHU Shiyou，et al. Effect of metro rail corrugation on dynamic behaviors of vehicle and track[J]. Journal of Traffic and Transportation Engineering，2015，15（1）：34-42.
[13] WANG K，LIU P，ZHAI W，et al. Wheel/rail dynamic interaction due to excitation of rail corrugation in high-speed railway[J]. Science China Technological Sciences，2015，58（2）：226-235.
[14] 刘佳，韩健，肖新标，等. 高速车轮非圆化磨耗对轴箱端盖异常振动影响初探[J]. 机械工程学报，2017，53（20）：98-105.
LIU Jia，HAN Jian，XIAO Xinbiao，et al. Influence of Wheel Non-circular Wear on Axle Box Cover Abnormal Vibration in High-speed Train[J]. Journal of Mechanical Engineering，2017，53（20）：98-105.
[15] 翟婉明．车辆-轨道耦合动力学（第四版 上册）[M]．北京：科学出版社，2015.
[16] XIAO X，LING L，JING X. A study of the derailment mechanism of a high speed train due to an earthquake[J]. Vehicle System Dynamic，2012，50（3）：449-470.
[17] WU X，CHI M，GAO H. Damage tolerances of a railway axle in the presence of wheel polygonalizations[J]. Engineering Failure Analysis，2016，66：44-59.
[18] 夏禾，张楠，郭薇薇著. 车桥耦合振动工程[M]. 北京：科学出版社，2014.
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
PDF(2043 KB)
