Improved L-P Method for Solving Strongly Nonlinear Problems
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摘要: 用改进的L-P法求解了一类平方强非线性自由振动问题和一类非振动型的强非线性问题,得到了精度很好的一级近似解,方法与通用的改进的L-P法稍有不同。Abstract: Using the improved L-P method,a class of problems of square strongly nonlinear free oscillations and of strongly nonlinear nonoscilations were solved.Their first order approximate solution which has high accuracy is obtained.The method of this paper is different from the known L-P methods.
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Key words:
- improved L-P method /
- strong nonlinearity /
- oscillation /
- differential equation
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[1] 唐驾时,尹小波. 一类强非线性系统的分叉[J]. 力学学报,1996,28(3):363~369. [2] 张佑啟,陈树辉. 用改进的Lindtstedt-Poincare方法分析保守系统强非线性振动[A]. 见: 黄黔,潘立宙主编,应用数学和力学——钱伟长80诞辰祝寿文集[C]. 北京: 科学出版社,重庆出版社,1993,30~39. [3] A.H.奈弗. 摄动方法习题集[M]. 宋家骕,戴世强译. 上海:上海翻译出版公司,1990,128~129.
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