摘要
用线化摄动法和插值摄动法相结合的方法求解强非线性Duffing方程，有较好的精度。
To seed to solve the strongly nonlinear Duffing equation by using the linearization perturbation method allying with the interpolation perturbation one. Its aecuracy is good.
关键词
线化摄动法
插值摄动法
强非线性
振动
权残法
linearization perturbation method, interpolation perturbation method, strong nonlinearity, oscillation, method of weighted residuals（MWR）
