Characterization of railroad crosstie movements by numerical modeling and field investigation

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• 作者：Yin Gao^a ; ^{yzg103@psu.edu} ; Yu Qian^b ; ^{yuqian1@illinois.edu} ; Shelley Marie Stoffels^c ; ^{sms26@engr.psu.edu} ; Hai Huang^d ; ^{huh16@psu.edu} ; Shushu Liu^a ; ^{sxl450@psu.edu}
• 关键词：Crosstie movement ; Field investigation ; Train-track interaction modeling ; Discrete element modeling
• 刊名：Construction and Building Materials
• 出版年：2017
• 出版时间：30 January 2017
• 年：2017
• 卷：131
• 期：Complete
• 页码：542-551
• 全文大小：3131 K
• 卷排序：131

文摘

Characterize the tie movement by coupling a vehicle-track interaction model. Measure the tie translation and rotation in field using a specially designed unit. Field and simulation results show ties could have translations and rotations. The effect of tie rotations is evaluated by the discrete element modeling. The tie rotations could increase the acceleration and contact forces in ballast.