主要考虑了一类耦合二阶常微分方程组在参数b12,b21均大于零的情形下,通过适当的尺度变换将此方程组变成具有2个自由度的Hamilton系统,利用Hamilton系统的相关知识分析了系统的平衡点、周期轨、同宿轨,并且运用Melnikov方法研究了系统的混沌性.
It was considered a class of two coupled two-order ordinary differential equations,in the case of b12,b210,via the scaling transformation,which could be transformed into a Hamiltonian system with two-degree of freedom.Bifurcations of equilibrium,periodic orbit as well as homoclinic orbit in this system were investigated in detail.In addition,Melnikov method was used to analyze the chaos of the system.