In this paper, using the interpolation perturbation method, the authors seek to solve two classes of weakly nonlinearoscillations.
用线化法，权残法和插值摄动法相结合的方法求得了一类有正阻尼的强非线性振动问题的近似瞬态解，精度好。
3
In this thesis, a new analytical approximate method is presented to solve large amplitude nonlinearoscillations of single degree of freedom non-natural conservative systems.