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In order to prevent unpleasant incidents,
preservation highspeed railway vehicle stability has vital
importance. For this purpose, railway vehicle is modeled using
a 38DOF. This paper presents an investigation on limit cycle
and bifurcation of high speed railway behavior. It is revealed
that the critical hunting speed decreases by increasing the
wheel conicity. Also the critical hunting speed and hunting
frequency calculated via the linear elastic rail is higher than
that derived using a nonlinear model.
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