摘要
在改进的L P法的基础上 ,补充考虑振幅的变化 ,得到了一类有正阻尼的强非线性自由振动问题的一级近似解 ,近似解有较好的精度。
In this paper, on the basis of the improved L Pmethod, replenishing to consider the variarue of the amplitude of uabration, the authors obtain a first order approximate solution of a class of problems of the positively damped strongly nonlinear free oscillations. This solution has good accuracy.
出处
《应用力学学报》
CAS
CSCD
北大核心
2001年第4期55-59,共5页
Chinese Journal of Applied Mechanics
关键词
正阻尼
强非线性
自由振动
L-P法
振幅
一级近似解
positively damped, strong, nonlinearity, free ascittation, improved L P method.
