Characteristic Analysis of Track Spectrums of Different Subway Line Conditions
HE Yue-lei 1，LI Zai-wei 1，SHENG Chun-ling 2，CHEN Xin 3
1 .Shanghai University of Engineering Science，Shanghai 201620，China;2. China Railway Airport Construction Group Corporation，Beijing 100093，China; 3.Tongji University，Shanghai 201804，China
Abstract：Research purposes: Track irregularity is directly related to the subway train running stability and comfort. Track irregularity spectrums of different subway line conditions which contain ballastless track on elevated lines， ballasted track on ground lines and ballastless track on underground line were fitted and characteristics of which were compared for providing technical references to management of railway track quality and track dynamics analysis.
Research conclusions:(1)Track fitting spectrum using track irregularity spectrum model from China Academy of Railway Sciences and Levenberg-Marquardt method characterizes the original spectral characteristics well. (2)Subway track irregularity spectrum is with spectrum signature of broadband and narrowband random wave and some harmonic with complex periodic，different subway lines are with different spectrum signatures.(3)The condition of profile and align irregularity maintains well.(4)The research results could be used in track structure design and track maintenance.
何越磊,李再帏,盛春,陈鑫. 不同地铁线路条件下轨道谱的特性分析[J]. 铁道工程学报, 2014, 31(7): 99-104.
HE Yue-lei,LI Zai-wei,SHENG Chun-ling,CHEN Xin. Characteristic Analysis of Track Spectrums of Different Subway Line Conditions. 铁道工程学报, 2014, 31(7): 99-104.
Luo Lin, Zhang Geming, Wu Wangqing, etc. The Control of Irregularities of Wheel-rail Interaction System [ M ].Beijing; China Railway Publishing House, 2006.
Chen Xianmai, Wang Lan, Tao Xiaxin, etc. Analysis of Track Irregularity with Wavelets Analysis Theory [J].Journal of Railway Engineering Society, 2008(1): 57-61.
Lian Songliang, Li Jianbin, Yang Wenzhong. Analysis of Track Irregularity Spectrum of Shanghai-Kunming and Jinhua-Wenzhou Railways [ J ].Journal of Tongji University(Nature Science)，2010 (2):257-262.
Li Zaiwei, Lian Songlian, Li Qiuling, etc. Characteristic Analysis of Track Irregularity Spectrum of Urban Rail Transit[J].Journal of East China Jiaotong University, 2011( 5 ) ; 83-87.
Chen Xianmai, Wang Lan, Tao Xiaxin, etc. Fitting Method of Track Spectrum for Main Line Railway in China[J].Journal of Traffic and Transportation Engineering, 2008 (1) ;19-22.
Li Zaiwei and Lian Songlian. Characteristic Analysis of Track Irregularity Spectrum of Wuhan-Guangzhou High-Speed Railway[J].Journal of Zhengzhou University(Engineering Science)，2013 (5) ; 52--55.
[9]侯卫星，刘刚，康熊.0号高速综合检测列车[M].北京: 中国铁道出版社，2010.
Hou Weixing, Liu Gang, Kang Xiong. No. 0 High- Speed Comprehensive Inspection Train[M].Beijing ; China Railway Publishing House, 2010.
[10].袁亚湘，孙文瑜.最优化理论与方法[M].北京:科学出 版社，1997.
Yuan Yaxiang, Sun Wenyu. Optimization Theory and Methods [ M.Beijing; Science Press,1997.
2014, Vol. 31 
版权所有 © 2014 《铁道工程学报》编辑部