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时变动力学的Legendre级数解
引用本文:曹志远,邹贵平,唐寿高.时变动力学的Legendre级数解[J].固体力学学报,2000,21(2):102-108.
作者姓名:曹志远  邹贵平  唐寿高
作者单位:同济大学工程力学与技术系,固体力学教育部重点实验室,上海,200092
基金项目:国家自然科学基金,上海市重点学科研究基金项目
摘    要:时变动力学问题可归纳为一含时变系数微分方程组。该文用状态空间方程,结合Legendre级数展开及Legendre积分算子矩阵,提出一种分析时变动 系统的方法,给出解的一般表达式,从而为有效解决时变力学问题打下理论基础,有助于时变科学的深入研究。

关 键 词:时变动力学  Legendre级数  状态空间方程

SOLUTION OF TIME-VARIATION DYNAMIC PROBLEM BY LEGENDRE POLYNOMIALS
Cao Zhiyuan,Zou Guiping,Tang Shougao.SOLUTION OF TIME-VARIATION DYNAMIC PROBLEM BY LEGENDRE POLYNOMIALS[J].Acta Mechnica Solida Sinica,2000,21(2):102-108.
Authors:Cao Zhiyuan  Zou Guiping  Tang Shougao
Abstract:The problem of time variation dynamic systems may be induced to solve a group of differential equations with time variation coefficients. The state space approach combined with the Legendre polynomials and its operational integration matrix is employed for the analysis of time variation dynamic systems in this paper, and the generalized formulation of the solution is also given. So the basis of efficient method to solve the time variation mechanical problems is established, and is beneficial to further research of time variation science.
Keywords:time  variation dynamics  Legendre polynomials  state space equation  operational integration matrix
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