DTVI2 fastener is the most common used fastening system in Beijing Metro, and demonstrated as a stable system by long term usage. However, unexpected rail corrugation occurs on DTVI2 fasteners sections in a new open metro line. In order to provide a treatment solution for this unexpected problem, tuned rail damper (‘TRD’ for short) is proposed to suppress the growth of rail corrugation by installing. The demonstration test track is conducted in a section of Beijing Metro Line 6, which is suffering serious rail corrugation. TRDs are mounted at both sides of rail in the test track section, while the rail remained the original state in the control section. A measurement campaign is conducted to compare the direct rail frequency response prosperities and the decay rate of track for both sections. The results indicate that the dynamic properties of DTVI2 fastener track are optimized by TRD. For one side, some resonant peaks (such as the vertical resonant peak at 209 Hz and the transverse peak at 845Hz etc.) are removed and the vertical/transverse first-order pinned-pinned resonance response amplitudes are decreased by 23%/25% shown on the frequency response curves. For the other side, the damping characteristics are significantly improved at 200~5 000 Hz. The vertical decay rate curve achieves the maximum growth of 16 times at 315 Hz, and the transverse one is 8 times at 160Hz. In addition, the growth of rail roughness was also traced for a period of more than 456 days after the installation. The monitoring data shows that the corrugation is already serious in the control section and the typical wavelengths of the corrugation are 25~80 mm. However, the rails basically remain ‘silent’ in the test track section. Therefore, TRD is demonstrated as an effective solution for suppressing the growth of such rail corrugation occurs at DTVI2 fastener track sections.
CHEN Jialiang
,
LIU Weining
,
LIU Weifeng
,
FENG Qijing
,
ZHANG Hougui
. Demonstration Test on Treatment Solution Against Rail Corrugation Occurs at DTVI2 Fastener Track Sections in Beijing Metro[J]. Journal of Mechanical Engineering, 2018
, 54(4)
: 64
-69
.
DOI: 10.3901/JME.2018.04.064
[1] 刘维宁, 任静, 刘卫丰, 等. 北京地铁钢轨波磨测试分析[J]. 都市快轨交通, 2011, 24(3):6-9. LIU Weining, REN Jing, LIU Weifeng, et al. In-situ tests and analysis on rail corrugation of Beijing Metro[J]. Urban Rapid Rail Transit, 2011, 24(3):6-9.
[2] EGANA J I, VINOLAS J, GIL-NEGRETE N. Effect of liquid high positive friction (HPF) modifier on wheel-rail contact and rail corrugation[J]. Tribol. Int., 2005, 38(8):769-774.
[3] 刘卫丰, 刘维宁, 吴宗臻, 等. 北京地铁剪切型减振器扣件钢轨波磨治理的试验研究[J]. 机械工程学报, 2015, 51(21):73-78. LIU Weifeng, LIU Weining, WU Zongzhen, et al. Test study on treating rail corrugation for egg fastener in Beijing Metro[J]. Journal of Mechanical Engineering, 2015, 51(21):73-78.
[4] HIENSCH M, NIELSEN J C O, VERHEIJEN E. Rail corrugation in The Netherlands-measurements and simulations[J]. Wear, 2002, 253(1-2):140-149.
[5] GRASSIE S L, ELKINS J A. Tractive effort, curving and surface damage of rails:Part 1. Forces exerted on the rails[J]. Wear, 2005, 258(7-8):1235-1244.
[6] ZHANG Hougui, LIU Weining, LIU Weifeng, WU Zongzhen. Study on the cause and treatment of rail corrugation for Beijing metro[J]. Wear, 2014, 317(1-2):120-128.
[7] TORSTENSSON P T, SCHILKE M. Rail corrugation growth radius curves-measurements and validation of a numerical prediction model[J]. Wear, 2013, 303(1/2):381-396.
[8] GRASSIE S L. Rail corrugation:characteristics, causes and treatments[J]. Proc. IMechE. Part F:Journal of Rail and Rapid Transit, 2009, 223(6):581-595.
[9] THOMPSON D J, JONES C J C, WATERS T P, et al. A tuned damping device for reducing noise from railway track[J]. Applied Acoustics, 2007, 68(1):43-47.
[10] MAES J, SOL H. A double tuned rail damper-increased damping at the two first pinned-pinned frequencies[J]. Journal of Sound and Vibration, 2003, 267(3):721-737.
[11] WU T X. Effects on short pitch rail corrugation growth of a rail vibration absorber/damper[J]. Wear, 2011, 271(1/2):339-348.
[12] 孙晓静, 张厚贵, 刘维宁, 等. 调频式钢轨阻尼器对剪切型减振器轨道动力特性的影响[J]. 振动与冲击, 2016, 35(14):209-214. SUN Xiaojing, ZHANG Hougui, LIU Weining, et al. Effect of tuning rail damper on dynamic properties of the track structure using Egg fastening system[J]. Journal of Vibration and Shock, 2016, 35(14):209-214.
[13] 刘卫丰, 张厚贵, 孟磊, 等. 北京地铁采用调频式钢轨减振器抑制钢轨振动的试验研究[J]. 振动工程学报, 2016, 29(1):105-111. LIU Weifeng, ZHANG Hougi, MENG Lei, et al. A test of suppressing rail vibration by tuned rail damper for Beijing metro[J]. Journal of Vibration Engineering, 2016, 29(1):105-111.
[14] 刘习军, 贾启芬. 工程振动理论与测试技术[M]. 北京:高等教育出版社, 2004. LIU Xijun, JIA Qifen. Theory and testing technology of engineering vibration[M]. Beijing:Higher Education Press, 2004.
[15] THOMPSON D J. Railway noise and vibration:mechanics, modeling and means of control[J]. Wear, 2011, 271(1/2):17-32.
[16] BS EN 15461:2008+A1:2010. Railway applications-Noise emission-Characterization of the dynamic properties of track selections for pass by noise measurements[S]. London:BSI-British Standards Institution, 2011.
[17] BS EN ISO 3095:2005. Railway applications-Acoustics-Measurement of noise emitted by railbound vehicles[S]. London:BSI-British Standards Institution, 2005.
[18] BSI. BS EN 13231-3-2006 Railway applications of rail grinding, milling and planning work in tracks[S]. London:BSI-British Standards Institution, 2006.
[19] CARSON R M, K. JOHNSON L. Surface corrugations spontaneously generated in a rolling contact disc machine[J]. Wear, 1971, 17(1):59-72.
