Elastic Wave Propagation in Block Medium under Impulse Loading

被引：0

作者：

N. I. Aleksandrova

机构：

[1] Russian Academy of Sciences,Institute of Mining, Siberian Branch

来源：

Journal of Mining Science | 2003年 / 39卷

关键词：

block medium; impulse excitation; nonstationary waves; spectral characteristics;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The waveguide properties of a block medium are studied by an example of a discrete-periodical system of spring-connected rods. As a particular case, a chain of masses is considered. It is shown that in the rod system, impulse loading excites two groups of nonstationary waves. The velocities of their propagation are determined. The asymptotic representation is obtained for low-frequency wave at a great period of time since the process onset. The analytical estimations of excitation spectrum are derived.

引用

页码：556 / 564

页数：8

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