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分析了一类存在间隙的两自由度振动系统的周期运动与全局分叉,揭示了碰撞振子与约束“擦边”引起的Poincaré映射奇异性对系统局部分叉与全局分叉的影响
The periodic motion and the global bifurcation of a two-degree-of-freedom vibration system with gap are analyzed. The influence of the singularity caused by the collision operator and the constraint edge on the local bifurcation and global bifurcation of the system