爆炸地震波模拟研究  

Numerical simulation of explosion seismic waves

作　　者：国胜兵[1] 潘越峰[1] 高培正[1] 王明洋[2] 钱七虎[2] 

机构地区：[1]第二炮兵工程设计研究所,北京100011 [2]中国人民解放军理工大学工程兵工程学院,江苏南京210007

出　　处：《爆炸与冲击》2005年第4期335-340,共6页Explosion and Shock Waves

摘　　要：基于能够描述爆炸地震波的非平稳随机过程模型进行爆炸地震波的模拟研究。基于爆炸地震能量守恒以及经验关系,提出了能够考虑装药量和爆距影响的爆炸地震波功率谱密度和幅值包络线模型,并且利用实测的爆炸试验数据,对模型参数进行标定,给出单点、两点(微差)和多点(微差)爆炸地震波实用模拟方法。结果表明模拟得到的爆炸地震波时程能够很好地再现爆炸地震波的一些特性。Explosion seismic waves are numerically studied with a non-stationary random process model. Based on energy conservation and experiential relation, an envelope function of acceleration amplitude and power density of explosion seismic waves is proposed, in which the effects of distance and mass of explosive are considered. The model parameters are determined by using the measured data. A practical simulation method of single-point, two-point （little-difference） and multi-point （littledifference） explosion seismic waves is also presented. Numerical simulation results show that the simulated history of explosion seismic waves can well reproduce some characteristics of explosion seismic waves.

关 键 词：爆炸力学 微差爆炸地震波 非平稳随机过程 爆炸 数值模拟 

分 类 号：O382[理学—流体力学]