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本文通过引入非线性频率，利用Ｆｌｏｑｕｅｔ理论及解通过转迁集时的特性，研究了不可通约两周期激励作用下的Ｄｕｆｉｎｇ方程在一次近似下的各种分岔模式及其转迁集，并指出其通向混沌可能的途径·
In this paper, by introducing the nonlinear frequency and using the Floquet theory and solving the characteristics of the transition set, we study the bifurcation patterns and their transitions of the Dufing equation under the inexact generalized two-period excitation under the first approximation Point out the possible ways to chaos