多维约束下的炸药爆破过程三维仿真

Three-Dimensional Simulation of Explosive Blasting Process with Multi-Dimensional Restriction

在炸药爆破过程的研究中,对炸药爆破过程进行三维仿真,可以预判炸药爆炸的破坏性和冲击气流方向,保证安全。炸药爆破过程中,爆炸产生的冲击波在扩散过程中受到阻挡后,炸药冲击波曲线和形成的冲击涡流状区域被破坏,传统的三维仿真模型在这种无序的爆炸曲线和冲击涡流区域状态下,以牺牲准确性为代价,提取三维参数特征进行仿真,结果偏差较大。提出一种多维约束下的炸药爆破过程仿真方法,分析炸药爆破图形仿真系统的性能和特点,构建优化的炸药爆破三维模型,获取爆破中较为准确的过程线、冲击波曲线与涡流状区域中心的纵间距和横间距比的三维数据,对破坏性数据进行约束评估,实现爆破场景的三维重构,仿真结果说明,改进方法可为对炸药爆破程度进行准确分析提供有效手段。

A simulation method for explosive blasting process is proposed under multi - dimensional restriction, the performance and characteristics of explosive blasting graphic simulation system are analyzed, an optimized 3D model of explosive blasting is built to obtain accurate blasting process line, shock wave curve and 3D data ratio of longitudinal spacing to horizontal spacing in the center of the vortex region, the destructive data are evaluated with the constraints, and the blasting scene 3D reconstruction is realized. Simulation result shows that the improved method can provide effective means to analyze the degree of explosives accurately.