基于胞映射方法,研究了齿轮扭转振动系统的稳态解在间隙变化时的相互转化关系,得到鞍结分岔、边界激变和周期倍化分岔前后系统吸引子吸引域的演变规律,同时分析了吸引子的分岔形式对系统全局稳定性的影响.%The coexistence of multi-steady-state solution is analyzed by calculating the multi-initial-value bifurcation diagram with the clearance changing,and the transforming process of the different forms of the steady motion with the clearance changing is studied through the cell-to-cell mapping method,then the evolution rules of the attractors' basins of attraction before and after the saddle-node bifurcation,boundary crisis and the period-doubling bifurcation are obtained.Meanwhile,the influence of different types of bifur cations on the global stability of the system is analyzed.
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