Analysis of vehicle-railway structure interacted system under braking force

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Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (2) : 138-143.

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Analysis of vehicle-railway structure interacted system under braking force

Zhang Nan; Xia He; Guo Weiwei; Cheng Qian

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Abstract

The analysis method of vehicle-structure interacted system under breaking force is studied. The vehicle subsystem is modeled by the rigid-body dynamics method, the structure subsystem is modeled by the modal superposition method. The longitudinal, lateral and vertical wheel-rail interacted forces are defined by the given breaking acceleration history, the simplified Kalker Creep Theory and the Wheel-rail Corresponding Assumption, respectively. The equations of motion are solved by the history integral method and the force-motion iterations within time steps. As a case study, the dynamic responses of the Shenzhen North Station under the braking of the Metro Line 4 and Line 6 trains are calculated, and the vibration properties of some key structural parts in the station building are analyzed and evaluated.

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vehicle-structure interacted system / metro train / station structure / braking force

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Zhang Nan;Xia He;Guo Weiwei;Cheng Qian . Analysis of vehicle-railway structure interacted system under braking force[J]. Journal of Vibration and Shock, 2011, 30(2): 138-143