The Two-Parameter Bifurcation and Evolution of Hunting Motion for a Bogie System
Shijun Wang,
Lin Ma,
Lingyun Zhang
Abstract:The complex service environment of railway vehicles leads to changes in the wheel–rail adhesion coefficient, and the decrease in critical speed may lead to hunting instability. This paper aims to reveal the diversity of periodic hunting motion patterns and the internal correlation relationship with wheel–rail impact velocities after the hunting instability of a bogie system. A nonlinear, non-smooth lateral dynamic model of a bogie system with 7 degrees of freedom is constructed. The wheel–rail contact relation… Show more
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