救生舱抗爆炸冲击载荷数值模拟

Numerical Simulation of Explosion Impact Load on Refuge Chamber

近些年煤矿井下事故频发,使得救生舱成为炙手可热的理想救生设备,而救生舱的安全性能,尤其是抗爆炸冲击性能就显得尤为重要。采用有限元软件AUTODYN,结合TNT当量法和流固耦合方法,将救生舱作为冲击波传播路径上的障碍物,模拟其对冲击波压力的激励作用,最终得到了作用于救生舱外壳各个表面的压力曲线,为后续的非线性动力学载荷施加提供理论支持。

Accidents in coal mine frequently happened in recent years,which makes refuge chamber become a hot and i- deal life-saving device. Therefore, the safety performance of the refuge chamber, especially the anti-explosion performance, is particularly important. By adopting the finite element software AUTODYN, and combining with TNT equivalent method and flu- id-solid coupling method ,the incentive effect of the refuge chamber on the pressure of shock wave as the obstruction on shock wave propagation path is simulated, and the pressure curve of each surface on refuge chamber is drawn. The results provide some theoretical support for the following nonlinear dynamic loading.