为表征车轮多边形化对车辆通过道岔的动力学性能的影响，以高速动车组和客运专线12号道岔为研究对象，建立高速车辆-道岔耦合动力学模型。多边形车轮采用简谐波与实测多边形两种形式模拟，综合考虑多边形车轮经过道岔的状态、左右侧车轮分布方式、多边形阶数和幅值等影响因素，计算车轮多边形化车辆通过道岔的动力响应。结果表明，多边形车轮半径偏差变化率最大点经过心轨处的响应最大。随着多边形阶数增加，动力响应呈先增大后减小的趋势，15、16阶时响应达到最大；左右侧车轮多边形同相位分布比反相位分布的响应大。多边形幅值越大，轮轨垂向力和轮对垂向加速度越大，当幅值达到0.20 mm，轮轨垂向力超过安全限值，且幅值超过0.16 mm，响应会明显增强。多边形车轮对车辆通过道岔的平稳性影响较小。
In order to analyze the effect of polygonal wheels on the dynamic performance of the vehicle through the turnout, the high-speed vehicle-turnout coupling model is built based on the high-speed train and No. 12 turnout in passenger dedicated line. The polygonal wheels are modeled with the harmonic and measured radius deviations. Considering the status of polygonal wheels through the turnout, the distribution, order and amplitude of polygonal wheels, the wheel-rail dynamic interaction is calculated. The results show that the maximum response occurs when the point on the wheel with the maximum radius deviation rate passes the nose rails. When the order is less than 15 and 16, the dynamic response will be increased with the increase of the order, and it will be decreased when the order is bigger than 15 and 16. The dynamic response for the same-phase polygons on both sides of wheel set is bigger than that for the inverse-phase. The wheel-rail vertical force and vertical acceleration of wheels will be increased with the increase of the amplitude. The wheel-rail vertical force would exceed the safety limit if the amplitude reaches 0.20 mm. When the amplitude is bigger than 0.16 mm, the dynamic response will be increased significantly. The polygonal wheels have little effect on the vehicle riding stability.
[1] SOUA B,PASCAL J P. Computation of the 3D wear of the wheels in a high speed[R]. Report INRETS-LIN,Arcueil,France,1995:40.
[2] GRASSIE S L. Allowable impact loading and wheel irregularities[C]//Proceedings of 8th International Rail Track Conference. Sydney,Australia,1990:5.
[3] NIELSEN J C O,LUNDEN R,JOHANSSON A,et al. Train-track interaction and mechanisms of irregular wear on wheel and rail surfaces[J]. Vehicle System Dynamics,2003,40(40):3-54.
[4] NIELSEN J C O,JOHANSSON A. Out-of-round railway wheels-a literature survey[J]. Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail & Rapid Transit,2000,214(2):79-91.
[5] JIN X,WU L,FANG J,et al. An investigation into the mechanism of the polygonal wear of metro train wheels and its effect on the dynamic behaviour of a wheel/rail system[J]. Vehicle System Dynamics,2012,50(12):1817-1834.
[6] 李伟,李言义,张雄飞,等. 地铁车辆车轮多边形的机理分析[J]. 机械工程学报,2013,49(18):17-22. LI Wei,LI Yanyi,ZHANG Xiongfei,et al. Mechanism of the polygonal wear of metro train wheels[J]. Journal of Mechanical Engineering,2013,49(18):17-22.
[7] MORYS B. Enlargement of out-of -round wheel profiles on high speed trans[J]. Journal of Sound & Vibration,1999,227(5):965-978.
[8] GRASSIE S L. Rail corrugation:advances in measurement,understanding and treatment[J]. Wear,2005,258(7-8):1224-1234.
[9] TOMAS L,JURAJ G. Railway wheel and rail roughness analysis[J]. Komunikacie,2009,11(2):41-48.
[10] LIU X,ZHAI W. Analysis of vertical dynamic wheel/rail interaction caused by polygonal wheels on high-speed trains[J]. Wear,2014,314(s1-2):282-290.
[11] 马卫华,罗世辉,宋荣荣. 地铁车辆车轮多边形化形成原因分析[J]. 机械工程学报,2012,48(24):106-111. MA Weihua,LUO Shihui,SONG Rongrong. Analyses of the form reason of wheel polygonization of subway vehicle[J]. Journal of Mechanical Engineering,2012,48(24):106-111.
[12] 陈伟,戴焕云,罗仁. 高速列车车轮高阶多边形对车辆动力学性能的影响[J]. 铁道车辆,2014,52(12):4-8. CHEN Wei,DAI Huanyun,LUO Ren. Effect of high order ploygons of wheels for high speed trains on dynamics performance of vehicles[J]. Rolling Stock,2014,52(12):4-8.
[13] 吴磊,钟硕乔,金学松,等. 车轮多边形化对车辆运行安全性能的影响[J]. 交通运输工程学报,2011(3):47-54. WU Lei,ZHONG Shuoqiao,JIN Xuesong,et al. Influence of polygonal wheel on running safety of vehicle[J]. Journal of Traffic and Transportation Engineering,2011(3):47-54.
[14] 张雪珊,肖新标,金学松. 高速车轮椭圆化问题及其对车辆横向稳定性的影响[J]. 机械工程学报,2008,44(3):50-56. ZHANG Xueshan,XIAO Xinbiao,JIN Xuesong. Influence of high speed railway wheels ovalization on vehicle lateral stability[J]. Chinese Journal of Mechanical Engineering,2008,44(3):50-56.
[15] 韩光旭,张捷,肖新标,等. 高速动车组车内异常振动噪声特性与车轮非圆化关系研究[J]. 机械工程学报,2014,50(22):113-121. HAN Guangxu,ZHANG Jie,XIAO Xinbiao,et al. Study on high-speed train abnormal interior vibration and noise related to wheel roughness[J]. Journal of Mechanical Engineering,2014,50(22):113-121.
[16] 王平,刘学毅,万复光. 列车-可动心轨式道岔空间耦合系统动力分析[J]. 铁道学报,1999(3):73-77. WANG Ping,LIU Xueyi,WAN Fuguang. Dynamic analysis of space-coupling system of train-turnout with movable-nose frog[J]. Journal of the China Railway Society,1999(3):73-77.
[17] 徐井芒,王平,谢铠泽,等. 可动心轨道岔转换结构动力学特性研究[J]. 铁道科学与工程学报,2014,11(1):29-35. XU Jingmang,WANG Pin,XIE Kaize,et al. Analysis on the dynamic characteristics of turnout switching equipments[J]. Journal of Railway Science and Engineering,2014,11(1):29-35.
[18] 杨亮亮,罗世辉,傅茂海,等. 车轮状态变化对重载货车轮轨作用力影响[J]. 振动与冲击,2014,33(3):110-116. YANG Liangliang,LUO Shihui,FU Maohai,et al. Effect of wheel state variation on face between wheel and rail of a heavy wagon[J]. Journal of Vibration and Shock,2014,33(3):110-116.
[19] 翟婉明. 车辆-轨道耦合动力学[M]. 北京:科学出版社,2007 ZHAI Wanming. Vehicle-track coupling dynamics[M]. Beijing:Science Press,2007.
[20] VOLLEBREGT E A H,WEIDEMANN C,KIENBERGER A. Use of "CONTACT" in Multi-Body Vehicle Dynamics and Profile Wear Simulation:Initial Results[C]//Proc. of the 22nd International Symposium on Dynamics of Vehicles on Roads and Tracks. Manchester,UK,2011.
