【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。更多还原

【Abstract】 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.更多还原