| Summary: | 碩士 === 國立成功大學 === 機械工程學系碩博士班 === 96 === About the stability analysis of railway vehicle system has been discussed for years. In reference reviews, we will introduce all about these theories, including linear and nonlinear theories. Finding out these theories, and improving the inconsequent assumptions. In this paper, we presented a new model of total creep force, and compared with the original model (heuristic nonlinear model) and linear model. Considering the simplicity car body model with 6 degree of freedom (6 DOF) that moving on the curved tracks, and calculate the motion equations of the railway vehicle system. Lyapunov’s indirect method is used to analyze the stability of the vehicle system. From the diagram of numerical analysis in this paper, the influence of interior or exterior parameters about critical speed will be discussed and compared with other models, so as to realize the model differences, and the stability and the safety of vehicle.
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