不将自旋扭矩因子近似为一个常数,利用Melnikov微扰方法推导了LLS方程解的表达式,通过VC与MATLAB混和编程进行计算,计算结果显示,与将自旋扭矩因子视为常数的情况相比较,自旋扭矩为磁化强度函数时的磁化强度运动轨道在离开未扰轨道初期仅在未扰轨道附近做微小振动,在翻转时刻附近有较大振荡,并且所预言的磁化强度翻转时刻相对提前. The spin-torque factor is not approximated as a constant. The expression of the LLS equation is deduced by the Melnikov perturbation method. The mixed-VC and MATLAB programming is used to calculate the spin-torque factor. The calculated results show that, In comparison, the magnetization of the orbit when the spin torque is a function of the magnetization makes the orbit slightly vibrate only near the undisturbed orbit at the beginning of the undisturbed orbit, and oscillates relatively near the time of the overturn, and the predicted moment of magnetization overturns relatively earlier .