Study on Wheel/Rail Impact Dynamics with Three Dimensional Wheel Flat Model

doi:10.3901/JME.2018.15.078

Abstract

Abstract: Wheel flat is one kind of faults of wheelset and has great effect on the wheel/rail system dynamics and damages. In the most of presented studies, the impact velocity or the radius variable because of the wheel flat were taken into account to research the wheel/rail system impact characteristics. In the presented paper, included the length, width and depth, a 3 dimensional wheel flat model on wheel profile is established. The wheel rotating and wheel/rail contact geometries are included in the model. Based on a high speed vehicle/rail coupling system dynamics model, the effect of the wheel flat on the wheel/rail dynamics are investigated. The results show that the width of the wheel flat has great influence on the wheel/rail dynamics. The ratio between the width and length of the flat has great effect on the wheel rail impact too. The wheel/rail impacting dynamics with larger width and shorter length flat is more severe than that of the flat with smaller width and longer length. The wheel/rail contact geometry when the wheel passes through the flat area are presented. It is useful of the results to comprehensively understand the wheel/rail impacting mechanics and effects.

Key words: contact geometry, flat width, impact and vibration, three dimensional wheel flat model, vehicle/rail coupling system dynamics model

CLC Number:

U270

REN Zunsong. Study on Wheel/Rail Impact Dynamics with Three Dimensional Wheel Flat Model[J]. Journal of Mechanical Engineering, 2018, 54(15): 78-85.

References

[1] 翟婉明. 车辆-轨道耦合动力学[M]. 3版. 北京:科学出版社,2007. ZHAI Wanming. Vehicle-railway coupling dynamics[M]. 3rd ed. Beijing:China Science Publish House,2007.
[2] UZZAL R U A,AHMED A K W,RAKHEJA S. Analysis of pitch plane railway vehicle-track interactions due to single and multiple wheelflats[J]. Proc. IMechE. Part F:Journal of Rail and Rapid Transit,2009,223:375-390.
[3] ZHU J J,AHMED A K W,RAKHEJA S,et al. Impact load due to railway wheels with multiple flats predicted using an adaptive contact model[J]. Proc. IMechE Part F:Journal of Rail and Rapid Transit,2009,223:391-403.
[4] DUKKIPATI R V,DONG Renguang. Impact loads due to wheel flats and shells[J]. Journal of Vehicle System Dynamics,1999,31:1-22.
[5] MICHAËL J,STEENBERGEN M M. The role of the contact geometry in wheel-rail impact due to wheel flats[J]. Journal of Vehicle System Dynamics,2007,45(12):1097-1116.
[6] JERGEUS J,ODENMARCK C,LUNDEN R,et al. Full-scale railway wheel flat experiments[J]. Proc Instn Mech Engrs. Part F:Journal of Rail and Rapid Transit,1999,213:1-13.
[7] SANDSTRÖM J,EKBERG A. Predicting crack growth and risks of rail breaks due to wheel flat impacts in heavy haul operations[J]. Proc. IMechE. Part F:Journal of Rail and Rapid Transit,2009,223:153-161.
[8] 姜涛,孙守光,缪龙秀,等. 车轮扁疤动力冲击的仿真研究及其检测原理[J]. 铁道车辆,1998(5):25-26. JIANG Tao,SUN Shouguang,MIAO Longxiu,et al. Wheel flat dynamics simulation and detection theories[J]. Railway Vehicle,1998(5):25-26.
[9] 杨新文,翟婉明. 车轮扁疤激起的轮轨冲击噪声机理分析[J]. 振动与冲击,2009,28(8):46-49. YANG Xinwen,ZHAI Wanming. Analysis of wheel flat impact noise[J]. Journal of Vibration and Impact,2009,28(8):46-49.
[10] 王忆佳,曾京,高浩,等. 车轮扁疤引起的轮轨冲击分析[J]. 西南交通大学学报,2014,49(4):700-705. WANG Yijia,ZENG Jing,GAO Hao,et al. Wheel flat impact[J]. Journal of Southwest Jiaotong University,2014,49(4):700-705.
[11] 凌亮,曹亚博,肖新标,等. 车轮擦伤对高速轮轨接触行为的影响[J]. 铁道学报,2015,30(7):32-39. LING Liang,CAO Yabo,XIAO Xinbiao,et al. Influence of wheel flat on wheel/rail contact behavior[J]. Journal of the China Railway Society,2015,30(7):32-39.
[12] 王建斌,邬平波,唐兆. 车轮扁疤引发附加冲击力对车轴应力谱影响的研究[J]. 铁道学报,2006,28(1):39-43. WANG Jianbin,WU Pingbo,TANG Zhao. Study on the axle stress spectrum caused by wheel flat impact[J]. Journal of the China Railway Society,2006,28(1):39-43.
[13] 任尊松. 车辆动力学基础[M]. 北京:中国铁道出版社,2009. REN Zunsong. Foundation of railway vehicle system dynamics[M]. Beijing:China Railway Publish House,2009.
[14] REN Zunsong,IWNICHI S,XIE Gang. A new method for determining wheel-rail multi-point contact[J]. Journal of Vehicle System Dynamics,2011,49(10):1533-1551.
[15] 任尊松,金学松. 轮轨多点接触计算新方法曲线通过验证[J]. 机械工程学报,2010,46(16):1-7. REN Zunsong,JIN Xuesong. Verification for new wheel-rail muti-point contact method[J]. Journal of Mechanical Engineering,2010,46(16):1-7.
[16] 任尊松. 轮轨多点接触及车辆-道岔系统动态相互作用[M]. 北京:科学出版社,2014. REN Zunsong. Wheel/rail multi-point contact and vehicle-turnout system dynamic interactions[M]. Beijing:China Science Publish House,2014.