摘要
本文应用拉普拉斯变换方法研究了正弦脉冲作用下爆炸应力波的基本特性。计算结果表明,在弹性介质内正弦输入脉冲的衰减比Heaviside输入脉冲的衰减快,正弦输入脉冲的作用时间越长,衰减越严重。
In this paper, With Laplace transform method, we study the basic characterictics of stress wave under the sine blasting pulse. Calculations show that the attenuation of sine input pulse is higher than Heaviside input pules in the elastic medium.The longer the action time of sine input pules,the higher the attenuation.
关键词
爆炸
正弦爆炸
脉冲
应力波
Laplace transform
sine blasting pulse
radial stress
the law of the attenuation
spheric wave
