基于灰色理论的两点爆炸起爆参数优化设计

Optimization design for priming parameters of two-point explosion based on gray theory

针对混凝土两点爆炸起爆参数选择问题,提出了一种基于灰色理论的参数优化方法。通过正交试验方法设计试验方案,运用AUTODYN软件进行了不同起爆参数组合条件下的静爆试验,计算了起爆参数与爆坑直径、爆坑深度的关联系数和关联度,进行了单目标因素优化和多目标因素优化,确定了一组各因素的优选组合,并进行了试验验证。验证结果表明：采用优化的起爆参数时,爆坑直径增大（4~42）%,左爆坑深度增大（0~29）%,右爆坑深度增大（0~32）%,两点爆炸混凝土靶体的毁伤效果得到明显改善。

Aimed at the selection problem of priming parameters of two-point explosion in concrete,a method for optimizing the parameters was proposed based on the gray theory.The experimental program was developed by the orthogonal experimental design technique,static explosion experiments were simulated by the software AUTODYN under different priming parameters.The gray relational degree and the gray incidence coefficient between the priming parameters and crater diameter as well as crater depth were calculated.The optimization of the priming parameters was done based on the single-objective function and the multi-objective function,and the additional production experiments were completed.The results show that the crater diameter increases 4%-42%,the left crater depth increases（0-29）%and the right crater depth increases（0-32）% by means of the optimized parameters,the damage effect of two-point explosion in concrete is improved than before.