非线性振动中两变量型尺度法存在的问题与改进

Defect and Improvement of Two-Time Expansion Method in Nonlinear Oscillations

本文指出了非线性振动中两变量型尺度法存在的问题并进行了改进.最后证明了改进的两变量型尺度法与КВМ法等价.

In this paper, the defect of the two-time expansion method is indicated and an improvement of this method is suggested. Certain examples, in which the present method is used, are given. Moreover, the paper shows the equivalence of the improved two-time expansion method and the method of KBM