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Characteristic Map of Hydraulic Buffer for Collision Simulation of Rolling Stock
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 Title & Authors
Characteristic Map of Hydraulic Buffer for Collision Simulation of Rolling Stock
Kim, Jinseong; Choi, Jeong Heum; Park, Yeong-il;
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The rolling stock is composed of several cars. In order to operate in combination, it is necessary to connect the device, called coupler, between the rolling stocks. When the collision occurs between cars, couplers should be able to absorb the shock. Urban railway has used only rubber absorbers. But recently, the hydraulic buffer has been considered in general railway. In order to know the performance of the buffer it should be conducted to experiments. But whenever this combination change, we should experiments to know a lot of the dynamic behavior of each coupler. These experiments are generally replaced by the simulation, since a lot of time and cost consuming. The quasi-static map of hydraulic buffer obtained by the experiments is required for the simulation. However, the experiments for obtaining such a quasi-static map is costly and time consuming. In this paper, it proposes a method for deriving the quasi-static map of hydraulic buffer from the theoretical model.
hydraulic buffer;collision simulation;rolling stock;dynamic model;quasi-static map;coupler;
 Cited by
H. S. Jung and T. S. Kwon, "Development of Pre/Post Processor for Rolling Stock Shunting Impact Analysis", Spring Conference Proceedings of KSAE, pp.1791-1976, 2007.

N. W. Kim, H. M. Jang, K. N. Kim and Y. I. Park, "Equivalent Model of Coupling System Based on Experimental Results", KSAE Annual Conference Proceedings, pp.1061-1065, 2008.

H. M. Jang, N. W. Kim and Y. I. Park, "Comparison of Simulation Models for Train Buffer Couplings", Transactions of KSAE, Vol. 18, No. 4, pp.107-114, 2010.

H. M. Jang, "Analysis on the Cushion Characteristics of a Rolling Stock Coupler adapted the Hydrostatic Buffer", Seoul National University of Science and Technology, 2012.