碎片(计算)
图形处理单元
计算
蒙特卡罗方法
计算机科学
绘图
航空航天工程
计算科学
模拟
物理
工程类
计算机图形学(图像)
算法
并行计算
操作系统
统计
数学
作者
Brian Kaplinger,Bong Wie,David S. P. Dearborn
标识
DOI:10.1016/j.actaastro.2012.10.013
摘要
This paper presents the development of simulation tools designed to be implemented as part of the mission design procedure for nuclear fragmentation and dispersion of a near-Earth object (NEO). A description of the methods used will be presented, followed by a discussion of the advanced GPU (Graphics Processing Unit) computing technology applied to accelerate computation. Preliminary results of a fragmented NEO dispersion scenario emphasize global parameter search methods for use in engineering mission analysis. A model of the NEO fragmentation process is presented for a subsurface nuclear explosion and penetrating contact burst. We conduct Monte Carlo simulation to establish a mean response of the target NEO to the fragmentation process. Resulting coherent masses are propagated through a model of solar system dynamics until the predetermined date of impact. On some orbits, the impacting mass can be reduced to lower than 0.1% of the NEO mass.
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