时域不连续的galerkin时间求积元法
首发时间:2021-03-04
摘要:随着现代工程技术的发展,人们对工程结构的动力学分析提出了更高的要求。弱形式求积元法是一种高阶插值的数值计算方法,具有高精度、高计算效率的特点。时域不连续的galerkin方法允许位移和速度在时间域上不连续,在处理动力学问题时具有无条件稳定和快速收敛的优势。本文将时域不连续的galerkin方法和求积元法结合,开发出一种新的动力学计算方法,并对其收敛性、精度等性质进行了研究。结果表明本方法具有无条件稳定和高精度的特点。
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discontinuous galerkin time quadrature element method
abstract:with the development of modern engineering technology, people put forward higher requirements for the dynamic analysis of engineering structure. weak form quadrature element method is a numerical method of high order interpolation, which has the characteristics of high accuracy and high efficiency. the time domain discontinuous galerkin method allows the displacement and velocity to be discontinuous in the time domain. it has the advantages of unconditional stability and fast convergence when dealing with dynamic problems. in this paper, a new dynamic calculation method is developed by combining galerkin method with quadrature element method, and its convergence and accuracy are studied. the results show that this method has the characteristics of unconditional stability and high precision.
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时域不连续的galerkin时间求积元法
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