轨道刚度对车辆-轨道系统频率响应的影响

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Abstract Research purposes:Track stiffness is an important parameter for the design and maintenance of railway track. However, the frequency-domain influence of track stiffness on the vehicle-track coupling system is still not clear. Based on the theories of vehicle-track coupling system dynamics, taking the existing speed-increase line as an example, this paper explores the frequency-domain influence of track stiffness on the vehicle-track coupling system.Research conclusions:The influence of track stiffness on the vehicle and bogie is little and it influences the wheel set and the track structure a lot. With the increase of track stiffness, the vibration response of vehicle-track coupling system goes stronger obviously in the medium-high frequency band of 100 Hz above, but the vibration response in the low and medium frequency band of 27~70 Hz gets a little weaker and it shows nearly no influence on the vibration response in the low frequency band of 27 Hz below. As the stiffness of fastener system increases, the maximum values of wheel-rail force spectrum, the wheel set acceleration spectrum and the rail vibration acceleration spectrum all increase considerably and the vibration frequency shows a tendency to occur a frequency shift towards high frequency band. The similar rule can be found in the research of the stiffness of ballast bed. Overall, in the frequency domain, the stiffness of fastener influences the vibration response of vehicle-track system greatly while the stiffness of ballast bed affects the vibration response of vehicle-track system relatively weaker, so deteriorative fasteners should be replaced in time while the maintenance cycle of ballast bed can be extended appropriately. The research can provide a good guidance for the optimization design of track structure and the track maintenance.

Key words： vehicle-track coupling system frequency analysis track stiffness vibration response

Received: 24 March 2014

PACS:

U213.2

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	Articles by authors
	WANG Ping
	XU Jin-hui
	WANG Li
	CHEN Rong

Cite this article:

WANG Ping,XU Jin-hui,WANG Li, et al. Effect of Track Stiffness on Frequency Response of Vehicle-track Coupling System[J]. 铁道工程, 2014, 31(9): 46-52.

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2014/V31/I9/46

[1] 刘学毅. 轨道刚度的影响分析及动力学优化[J] . 西南交通大学学报, 2004(1): 1- 5 .
Liu Xueyi. Effect Analysis of Track Stiffness on Dynamic Characteristics of Wheel-rail System and Its Dynamic Optimization[J]. Journal of Southwest Jiaotong University,2004(1):1-5.
[2] 陈小平, 王平, 张瑶. 250 km/h客运专线无砟道岔的合理轨道刚度[J] . 铁道工程学报, 2010(7): 25-28 .
Chen Xiaoping, Wang Ping, Zhang Yao. The Reasonable Stiffness of Ballastless Track Turnout of 250 km/h Passenger Dedicated Line [J]. Journal of Railway Engineering Society, 2010(7):25-28.
[3] 姚力, 颜华, 蔡城标. 遂渝线无砟道岔前后轨道刚度过渡段动力学设计[J]. 铁道工程学报, 2006(7):37-40 .
Yao Li, Yan Hua, Cai Chengbiao. Dynamic Design of Stiffness Transition of Turnout in Ballastless Track of Suining-Chongqing Railway [J]. Journal of Railway Engineering Society, 2006(7):37-40.
[4] 赵国堂. 铁路轨道刚度的确定方法[J]. 中国铁道科学, 2005(1):1-6.
Zhao Guotang. Method of Determining the Rigidity of Railway Track[J]. China Railway Science, 2005(1):1-6.
[5] 翟婉明, 蔡成标, 王开云. 轨道刚度对列车走行性能的影响[J]. 铁道学报, 2000(6):80-83.
Zhai Wanming, Cai Chengbiao, Wang Kaiyun. Effect of Track Stiffness on Train Running Behavior[J]. Journal of the Railway Society, 2000(6):80-83.
[6] 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.
[7] 吕峰, 林家浩, 张亚辉. 车辆-轨道系统垂向随机振动的辛方法分析[J]. 力学学报, 2008(3):381-387.
Lu Feng, Lin Jiahao, Zhang Yahui. Random Vibration Analysis of Vehicle-Track Coupling Systems Using Simplistic Method[J]. Chinese Journal of Theoretical and Applied Mechanics, 2008(3):381-387.
[8] Lin JH, Fan Y, Bennett PN, etc. Propagation of Stationary Random Waves along Sub Structural Chains[J]. Journal of Sound and Vibration, 1995(5):757-767.
[9] 郑兆昌, 丁奎元. 机械振动[M]. 北京:机械工业出版社, 1986.
Zheng Zhaochang, Ding Kuiyuan. Mechanical Vibration[M]. Beijing: China Machine Press, 1986.
[10]陈果. 车辆轨道耦合系统随机振动分析[D]. 成都: 西南交通大学, 2000.
Chen Guo. The Analysis on Random Vibration of Vehicle/track Coupling System[D]. Chengdu: Southwest Jiaotong University,2000.