Dynamic sensitivity analysis for the pantograph of a high-speed rail vehicle |
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Authors: | Tong-Jin Park Jin-Hee Jang |
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Institution: | a Department of Precision Mechanical Engineering, Hanyang University, South Koreab Division of Mechanical Engineering, Hanyang University, Sa 1 dong, 1271, Ansan, Kyonggi-do 425-791, South Koreac Technical Research Center, Daewoo Motors, South Korea |
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Abstract: | In this study, the dynamic characteristics of a catenary system using the finite element method (FEM) and dynamic modelling for developing a suitable pantograph at high speed is analyzed. First, the catenary system of a high-speed railway is assumed to be a beam model. Next, an analysis program using finite element analysis was performed. The pantograph of linear spring-mass system is assumed to be three-degrees-of-freedom model for the finite element analysis. The analyses of the catenary based on the FEM are executed to develop a pantograph that meets the necessary standards for high-speed rail vehicles. Using a simulation of the pantograph-catenary system, the static deflection of the catenary, the stiffness variation in the contact lines, the dynamic response of the catenary undergoing a constant moving load and the contact force analysis were executed. From the pantograph-catenary analysis, the design parameters of a pantograph could be optimized. Based on the design-parameter analysis, a pantograph with improved parameters was found to be suitable for a high-speed rail vehicle. |
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