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arXiv 1406.7494astro-ph.IMastro-ph.EPcs.NAmath.NA
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消除记忆以提高粘弹性方程数值积分效率

Elimination of memory from the equations of motion of hereditary viscoelasticity for increased efficiency of numerical integration

Andrzej Hanyga

AI总结:

本文提出消除线性粘弹性方程中记忆的方法,通过有限或半有限区间上的四次积分减少计算和存储开销,适用于具有分离完全单调松弛模量的粘弹性介质,且在地震学Strick-Mainardi模型中采用Gauss-Jacobi四次积分。

摘要:

本文提出了一种消除线性粘弹性方程中记忆的方法。用有限或半有限区间上的四次积分替代无界记忆,可显著减少计算和存储开销。该方法适用于具有分离完全单调松弛模量且已知延迟谱的粘弹性介质。在地震学Strick-Mainardi模型中,四次积分采用Gauss-Jacobi四次积分。展示了该方法与分数阶粘弹性之间的关系。

英文摘要:

A method of eliminating the memory from the equations of motion of linear viscoelasticity is presented. Replacing the unbounded memory by a quadrature over a finite or semi-finite interval leads to considerable reduction of computational effort and storage. The method applies to viscoelastic media with separable completely monotonic relaxation moduli with an explicitly known retardation spectrum. In the seismological Strick-Mainardi model the quadrature is a Gauss-Jacobi quaddrature. The relation to fractional-order viscoelasticity is shown

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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