有正阻尼时强非线性自由振动问题的插值摄动解法  

Interpolation perturbation method for solving the positively damped strongly nonlinear free oscillation problems

作　　者：袁镒吾[1] 

机构地区：[1]中南大学,长沙410083

出　　处：《强度与环境》2005年第2期1-7,共7页Structure & Environment Engineering

摘　　要：本文用插值摄动和权残法相结合的方法求得了一类有正阻尼的强非线性自由振动问题的一级近似解,精度好。In this paper, using the interpolation method allying with the method of weighted residuals, the first order approximate solutions of a class of the positively damped strongly nonlinear problems are obtained. Its accuracy is good.

关 键 词：插值摄动法 阻尼 强非线性 自由振动 权残法 

分 类 号：O322[理学—一般力学与力学基础]